The joy of going camping is usually found in going off-grid for a few days and reconnecting with nature. However, having creature comforts like light and warmth, and even access to medical devices like a CPAP machine, make it worthwhile taking a portable power solution with you. That's where portable power stations come in. Think power banks, only bigger. Power stations come in a variety of power capacities and sizes, and that means that you can find a portable power station for every type of camping, no matter whether you're a backpacker, a car camper, or an RVer.  What is the best portable power station for camping right now?  We've tested dozens of portable power stations in a lab setting and have also done hands-on testing during camping trips and road trips. Based on both experiences, our pick for the best portable power station for camping overall is the Jackery Explorer 2000 Plus, thanks to its versatility and the amount of power it provides. As an avid camper myself, I've also included other portable power stations from brands like EcoFlow and Bluetti so you can improve your next camping experience. Sort by All The best portable power stations for camping in 2025 Show less View now at Amazon Jackery is a well-known brand in the power station space, and for good reason. Its versatile power stations consistently rank among our best products, thanks to the enormous power these devices provide and their flexibility in setup, especially in a camping scenario.Steve Conaway, the director of CNET Test Labs, at our sister site, has tested dozens of power stations and said the Jackery is one of his top picks. "The versatility of modularity is what makes this power station so impressive," Conaway said. "You can choose to take just the one unit for regular camping, but if you wanted a bigger setup to power a cabin, you could easily add on more units."Review: This portable battery station can power your home for 2 weeksAnd the great thing about this unit is that if you need more power storage capacity, you can add on the PackPlus E2000 Plus battery pack for an additional 2042.8Wh of electrical storage capacity to the system.Jackery has a long track record of building quality, durable, and long-lasting power stations -- which is exactly what you need if you are spending the big bucks on a power station.Remember that the more additions you add to this setup, the heavier it will be. On its own, it weighs 41.9 pounds but can reach well over 100 pounds with more units. Despite the weight, Reddit users note that the solar additions, in particular, have been useful in camping and outdoor situations.Jackery Explorer 2000 Plus specs: Watts/hr: 2042.8W | Continuous watts: 3000W | Surge watts: 6000W | Solar input (W): 1400 | Ports: 2 USB-A, 2 USB-C, 4 AC | Weight: 61.5 pounds Pros Clean, easy-to-read LCD display Expansion battery modules Solar panels are durable and highly efficient Wheels make moving it a lot easier Cons Expensive Jackery is a well-known brand in the power station space, and for good reason. Its versatile power stations consistently rank among our best products, thanks to the enormous power these devices provide and their flexibility in setup, especially in a camping scenario.Steve Conaway, the director of CNET Test Labs, at our sister site, has tested dozens of power stations and said the Jackery is one of his top picks. "The versatility of modularity is what makes this power station so impressive," Conaway said. "You can choose to take just the one unit for regular camping, but if you wanted a bigger setup to power a cabin, you could easily add on more units."Review: This portable battery station can power your home for 2 weeksAnd the great thing about this unit is that if you need more power storage capacity, you can add on the PackPlus E2000 Plus battery pack for an additional 2042.8Wh of electrical storage capacity to the system.Jackery has a long track record of building quality, durable, and long-lasting power stations -- which is exactly what you need if you are spending the big bucks on a power station.Remember that the more additions you add to this setup, the heavier it will be. On its own, it weighs 41.9 pounds but can reach well over 100 pounds with more units. Despite the weight, Reddit users note that the solar additions, in particular, have been useful in camping and outdoor situations.Jackery Explorer 2000 Plus specs: Watts/hr: 2042.8W | Continuous watts: 3000W | Surge watts: 6000W | Solar input (W): 1400 | Ports: 2 USB-A, 2 USB-C, 4 AC | Weight: 61.5 pounds Read More Show Expert Take Show less Show less Camping takes all sorts of forms, and there's a power station to suit everyone. For those who head outdoors in an RV or to a remote cabin, the EcoFlow Delta Pro Ultra (DPU) is a powerful option. EcoFlow debuted the Delta Pro Ultra at CES this year, and compared to the EcoFlow Delta Pro model, the Ultra has double the power and charges, a dedicated 4G LTE modem port to access the app in remote areas with weak Wi-Fi signals, and a 32-minute faster recharge time.ZDNET editor Maria Diaz went hands-on with this unit and called it the "Swiss Army Knife of home backup systems," and its impressive specs back that claim up. The single unit has a 6kWh capacity, 7200W output, and 5.6kW solar input, allowing it to run an entire RV or cabin, especially when stacked with other units for increased capacity.This great power packs a lot of weight,186.4 pounds, to be exact. However, it can be divided into two pieces: the inverter, the top portion, is 70 pounds, and the battery, the bottom portion, is 116 pounds. Diaz noted that her family experienced a power outage recently, and her husband was able to transport the battery part much more easily by separating the pieces.EcoFlow Delta Pro Ultra specs: Watts/hr. 7200W | Continuous watts: 6kWh | Surge watts: 10.8 kW | Solar input (W): 5.6kW | Ports: 2×USB-A, 2×USB-C (100W), 6×AC Output, 1×DC output | Weight: 186.4 pounds AC outputs 9 Total capacity 10 Expansion ready 10 USB ports 9 Max output 10 Pros Expandable to up to 90kWh Consumption insights in EcoFlow app Modular design Cons Expensive Heavy EcoFlow Delta Pro Ultra Best portable power station for RV camping 4.8 / 5 Score Camping takes all sorts of forms, and there's a power station to suit everyone. For those who head outdoors in an RV or to a remote cabin, the EcoFlow Delta Pro Ultra (DPU) is a powerful option. EcoFlow debuted the Delta Pro Ultra at CES this year, and compared to the EcoFlow Delta Pro model, the Ultra has double the power and charges, a dedicated 4G LTE modem port to access the app in remote areas with weak Wi-Fi signals, and a 32-minute faster recharge time.ZDNET editor Maria Diaz went hands-on with this unit and called it the "Swiss Army Knife of home backup systems," and its impressive specs back that claim up. The single unit has a 6kWh capacity, 7200W output, and 5.6kW solar input, allowing it to run an entire RV or cabin, especially when stacked with other units for increased capacity.This great power packs a lot of weight,186.4 pounds, to be exact. However, it can be divided into two pieces: the inverter, the top portion, is 70 pounds, and the battery, the bottom portion, is 116 pounds. Diaz noted that her family experienced a power outage recently, and her husband was able to transport the battery part much more easily by separating the pieces.EcoFlow Delta Pro Ultra specs: Watts/hr. 7200W | Continuous watts: 6kWh | Surge watts: 10.8 kW | Solar input (W): 5.6kW | Ports: 2×USB-A, 2×USB-C (100W), 6×AC Output, 1×DC output | Weight: 186.4 pounds Read More Show Expert Take Show less Show less Looking for something more compact for overnight camping or hiking? The EcoFlow River 2 Max 500 weighs just 13.1 pounds but has a battery capacity of 500Wh. In addition, you can recharge the unit using one of four methods: AC, solar, 12V in-car, or USB-C. If you choose AC, the unit can go from zero to 100% in an hour, which means you can leave charging to the last minute while camping.The company claims that one full charge of the River 2 Max can charge an iPhone 41 times, a drone 10 times, and an electric blanket eight times.ZDNET's Adrian Kingsley-Hughes tested this unit and called it "compact enough to be portable, big enough to be practical." "If you want to go totally off-grid, EcoFlow offers a 160W solar panel that can recharge the River 2 Max in about four hours," he wrote. "The panel is durable and waterproof to IP68, so it's the perfect adventure companion for the River 2 Max 500."Verified Amazon customers note that this compact unit has been helpful for everything from camping festivals to powering a CPAP machine in primitive areas.EcoFlow River 2 Max specs: Watts/hr: 500W | Continuous watts: 500W | Surge watts: 1000W | Solar input (W): 220W | Ports: 3 USB-A, 1 USB-C, 4 AC | Weight: 13.14 pounds Pros Compact and lightweight Durable build Inexpensive Cons More limited ports and power Looking for something more compact for overnight camping or hiking? The EcoFlow River 2 Max 500 weighs just 13.1 pounds but has a battery capacity of 500Wh. In addition, you can recharge the unit using one of four methods: AC, solar, 12V in-car, or USB-C. If you choose AC, the unit can go from zero to 100% in an hour, which means you can leave charging to the last minute while camping.The company claims that one full charge of the River 2 Max can charge an iPhone 41 times, a drone 10 times, and an electric blanket eight times.ZDNET's Adrian Kingsley-Hughes tested this unit and called it "compact enough to be portable, big enough to be practical." "If you want to go totally off-grid, EcoFlow offers a 160W solar panel that can recharge the River 2 Max in about four hours," he wrote. "The panel is durable and waterproof to IP68, so it's the perfect adventure companion for the River 2 Max 500."Verified Amazon customers note that this compact unit has been helpful for everything from camping festivals to powering a CPAP machine in primitive areas.EcoFlow River 2 Max specs: Watts/hr: 500W | Continuous watts: 500W | Surge watts: 1000W | Solar input (W): 220W | Ports: 3 USB-A, 1 USB-C, 4 AC | Weight: 13.14 pounds Read More Show Expert Take Show less Show less View now at Amazon Portable power stations can get pretty pricey, but this one from Bluetti currently retails at only $359 for Amazon Prime members, making it a great budget pick. Plus, it charges quickly, especially when utilizing its turbocharging feature. Kingsley-Hughes also tested this model and praised it for delivering enough power to energy-intensive devices during a road trip. "It has enough capacity to meet the needs of a small group for several days," he wrote, adding, "I've relied on the power station to charge my smartphone, cameras, drones, and laptops efficiently."In his testing, he also found that charging the station from a car's 12V outlet is particularly efficient for keeping the unit charged, as long as the battery is not drained too much.Verified customers praised the AC70 on Bluetti's website, with most of the reviewers saying they bought it for camping and were pleased with the experience of using it for this purpose. Bluetti AC70 specs: Watts/hr: 768W | Continuous watts: 1000W | Surge watts: 2000W | Solar input (W): 500W | Ports: 2 USB-A, 2 USB-C, 2 AC | Weight: 22.5 pounds Pros Turbocharge feature Affordable price Cons Some of the better features are only available by using the app Portable power stations can get pretty pricey, but this one from Bluetti currently retails at only $359 for Amazon Prime members, making it a great budget pick. Plus, it charges quickly, especially when utilizing its turbocharging feature. Kingsley-Hughes also tested this model and praised it for delivering enough power to energy-intensive devices during a road trip. "It has enough capacity to meet the needs of a small group for several days," he wrote, adding, "I've relied on the power station to charge my smartphone, cameras, drones, and laptops efficiently."In his testing, he also found that charging the station from a car's 12V outlet is particularly efficient for keeping the unit charged, as long as the battery is not drained too much.Verified customers praised the AC70 on Bluetti's website, with most of the reviewers saying they bought it for camping and were pleased with the experience of using it for this purpose. Bluetti AC70 specs: Watts/hr: 768W | Continuous watts: 1000W | Surge watts: 2000W | Solar input (W): 500W | Ports: 2 USB-A, 2 USB-C, 2 AC | Weight: 22.5 pounds Read More Show Expert Take Show less Show less What makes this portable power station so versatile for camping is the amount of power and port options. There's a 100W and 60W USB-C port on the front, along with four USB-A ports, so all your devices are covered. There is also a 12V car socket capable of outputting 120W of power and six AC outputs, each capable of 1500W or 2400W in a power surge.Kingsley-Hughes tested this unit and said in his review that the Anker 757 Powerhouse is "well thought out, not overly complicated, built with ergonomics in mind, and packs quite a lot of power." Review: Anker 757 PowerhouseAnker is a company that has been in the portable power market for many years, starting out with chargers and power banks, and then later making the leap to power stations. That long heritage is obvious when looking at the overall build quality of the Anker 757.Customer reviews note that adding portable solar panels allows for greater battery charge retention, especially while camping. Kingsley-Hughes said that while he wouldn't carry this 43.9- pound unit too far, the ergonomic handles distribute the weight well, so it's well built for moving from the garage to a truck or RV.Anker 757 Powerhouse specs: Watts/hr: 1229W | Continuous watts: 1500 | Surge watts: 2400 | Solar input (W): 600W | Ports: 4 USB-A, 2 USB-C, 6 AC | Weight: 43.9 pounds Pros Ergonomic design Lots of ports Large display Cons Solar charging could be better What makes this portable power station so versatile for camping is the amount of power and port options. There's a 100W and 60W USB-C port on the front, along with four USB-A ports, so all your devices are covered. There is also a 12V car socket capable of outputting 120W of power and six AC outputs, each capable of 1500W or 2400W in a power surge.Kingsley-Hughes tested this unit and said in his review that the Anker 757 Powerhouse is "well thought out, not overly complicated, built with ergonomics in mind, and packs quite a lot of power." Review: Anker 757 PowerhouseAnker is a company that has been in the portable power market for many years, starting out with chargers and power banks, and then later making the leap to power stations. That long heritage is obvious when looking at the overall build quality of the Anker 757.Customer reviews note that adding portable solar panels allows for greater battery charge retention, especially while camping. Kingsley-Hughes said that while he wouldn't carry this 43.9- pound unit too far, the ergonomic handles distribute the weight well, so it's well built for moving from the garage to a truck or RV.Anker 757 Powerhouse specs: Watts/hr: 1229W | Continuous watts: 1500 | Surge watts: 2400 | Solar input (W): 600W | Ports: 4 USB-A, 2 USB-C, 6 AC | Weight: 43.9 pounds Read More Show Expert Take Show less What is the best portable power station for camping? Based on our hands-on experience and in-lab testing, the Jackery Explorer 2000 Plus is the best portable power station for camping. Its modularity makes it a versatile option for all types of camping. Show more Which portable power station for camping is right for you? It depends on the type of camping you prefer before you choose which portable power station will fit your needs. Consider what devices you want to bring with you and keep powered and whether you will be staying in an RV or cabin vs. a tent. Choose this portable power station for camping... If you want... Jackery Explorer 2000 Plus The best overall option. It packs a lot of power at 3000 continuous watts, and its modularity makes it versatile for camping. EcoFlow Delta Pro Ultra A powerful portable power station best for RV camping. It can run an entire RV or cabin, especially when stacked with other units for increased capacity. EcoFlow River 2 Max 500A compact portable power station for camping. It weighs just 13.4 pounds and features 60 minute fast charging. Bluetti AC70 A budget-friendly portable power station for camping. This unit also has 2,000W surge capability and a turbocharging feature, which allows for super fast charging that can take it from flat to 80% in 45 minutes. Anker 757 Powerhouse  A versatile portable power station for camping with lots of ports. It also has an ergonomic build, making it easier to carry despite its weight. Show more Factors to consider when choosing the best portable power station for camping: Power stations are a significant investment, but they can ultimately upgrade your camping experience to allow for power off-grid. Before making our top picks, we considered several factors.Weight: Bigger isn't always better, especially when it comes to camping. Will the portable power station be wheeled down a paved trail, or will you be moving it from your vehicle to your camp? Do you want something you could carry in a backpack for a day? Battery capacity: If you plan to power an RV or bigger devices from your power station, you want as much battery capacity as you can afford, but for off-grid adventures, it's important to bear in mind that there's a penalty here in the form of weight.Cost: Some units cost several thousand dollars, while others cost a couple hundred. Plus, add-ons like battery packs and solar panels also increase the price.Charging: How do you plan on charging your power station? Are you mostly going to use AC power from an outlet, or do you want the independence of solar?Battery Chemistry: Lithium-ion (Li-ion) is the traditional battery technology, but the newer lithium iron phosphate batteries (LiFePO4) are safer and have a much longer lifespan. Show more How did we test these portable power stations for camping? Over the past few years, we've tested well over 100 different portable power stations to find out which are the best of the best. To do this efficiently, because it takes days to do properly, we've developed a comprehensive testing structure. This not only ensures that manufacturers aren't playing fast and loose with their spec sheet data but also checks whether the units are safe and reliable. Here's an overview of how we test portable power stations.Unboxing and visual inspectionCapacity testsLoad testingUPS capability testingThermal testsSafety testsReal-world usageFor more detailed information on how these tests are carried out, check out this post, where we explore the process more thoroughly.  Show more FAQs on portable power stations How long will a power station last while camping based on its watts? To figure this out, you're going to need to get a pencil and do some back of the envelope calculations.  You're going to need a couple of bits of information.First, you need to know what devices you are going to power. List them all, because forgetting that coffee pot or heated blanket could make the difference between the power station lasting all day, or giving up the ghost on you before the day is over.Specifically, you want to know how much power, in watts, each device draws. This information is usually found on a label on the device. For example, a heater might draw 1,000W, while a CPAP machine might draw 60W. This figure represents the maximum power consumption, and you will find that the power consumption of some devices, such as CPAP machines, fluctuates greatly, while for other devices, like the heater, the power consumption remains quite stable.Next, you need to know how long you plan on running your devices during a day, or between recharges of your power station. Your heater might run for two hours, while the CPAP machine could run for eight hours.Power station capacities are measured in watt-hours (Wh). A device drawing 1,000W running for one hour uses 1,000Wh. Therefore, the same device running for two hours will need 2,000Wh. Heaters are some of the most power-hungry devices that people find themselves needing to run.Similarly, a CPAP machine that uses 60W will consume 60Wh per hour, so running it for eight hours would consume 480Wh.Your total energy usage over 24 hours would then be 2,480Wh.Based on this, you might think that a 2,500Wh capacity power station would be sufficient. However, in reality, nothing is perfect, and there are energy losses in the system. The rule of thumb is to add 20% to your total and then round up to the next highest capacity available. So, you'd be looking at a power station with a capacity of around 3,000Wh to ensure you have enough stored power for the day. Show more How can I make my power station run longer? Simple: Find your biggest power draws and replace them with more energy efficient alternatives. For example, you might find that you can replace that 1,000W heater with a heated throw that only takes 100W to power. That quilt would run for 10 hours on the power that the heater would use in an hour!Another big power hog is incandescent lights. Swapping these out for LEDs will result in huge power savings and dramatically boost your power station's runtime.   Show more What is the difference between a power station and a power bank? The main difference between portable power stations and portable power banks is the amount of power and what they can charge. Power stations have AC outlets and allow you to charge more and bigger devices, including life-saving ones like a CPAP machine, a cooler, or a floodlight for the campsite while going off-grid.Power banks are much smaller and are best for charging devices like phones, headphones, and smartwatches.  Show more Other portable power stations we've tested Further ZDNET Tech Coverage Smartphones Smartwatches Tablets Laptops TVs Other Tech Resources ZDNET Recommends

LEGO has released a ton of new Harry Potter sets for June, but perhaps the most quirky and delightful build in the bunch is the Chomping Monster Book of Monsters set. It's a recreation of the iconic book we first see in the third Harry Potter film (The Prisoner of Azkaban) and it absolutely looks the part. More importantly, though, it actually chomps.Out June 1Chomping Monster Book of Monsters$59.99 at LEGOThe new Monster Book of Monsters set has a lot of cool details on the outside that made it fun to put together, but it's what on the inside that makes it fun to play with after. LEGO provided IGN with a copy of the set for a test build and I got the chance to put it together myself. At only 518 pieces, I was able to build the whole thing in one evening before I went to bed and had my nephews playing with it the next morning.We Build the LEGO Harry Potter Monster Book of MonstersSet #76449 is actually the second iteration of the LEGO Monster Book of Monsters. The first rendition was a Gift with Purchase (set #30628), called The Monster Book of Monsters, released back in 2020 with a lot fewer pieces and a more simplistic style. The newer Chomping Monster Book of Monsters looks a lot more realistic and includes actual chomping action. It also includes a Neville Longbottom minifigure that is holding a much smaller version of the book. It's a fairly easy build, but it was fun to put together and the chomping action was a nice touch.The build is split up into four sections and you get one bag of LEGO bricks for each part. You start by putting together your little Neville Longbottom minifigure. He has two different face options to chooose from, so you can make him either smiley or terrified. I decided to go with smiley and placed him near the pieces as I put together everything else. The first part of the build is basically putting together the framework for the book.This is the longest step in the whole process and it admittedly takes quite a bit of time until it really starts looking like something. You're building what will later become the chassis that your little chomping motor and wheels will later sit in, so it's important you get everything facing the right direction. It really helped me that you use red bricks to indicate the back and blue bricks for the front or I definitely would have made a mistake along the way.It doesn't actually resemble anything like a monster book until you start adding some of the exterior pieces. There are light brown panels with a ridge that will look like pages once you're finished putting them together. The dark brown pointy pieces you add on the front and sides are what really start making it look like what you see on the box. You'll also add smooth panels on the back of each rectangle that will eventually fit together to form the entire base of the book.The one thing I didn't particularly enjoy about this build was how repetitive it felt to build both sides of the book itself. There were some small differences between the top and the bottom of the book, but for the most part the build felt exactly the same. So it ended up being a bit repetitive to have to do basically the same step twice. That being said, it was extremely satisfying when I finally got to be able to connect the two halves at the spine. You thread a few long pieces through the back hinge and suddenly you've got what looks to be a hollowed out book.The next portion of this build is where it really started to become fun. Once you're done with the overall structure, you move on to building the cover of the book. You start out with a series of large flat brown pieces that form the base of your cover. These are held together by two long flat pieces that are also thankfully color coordinated to indicate which side is up. Once you have the base assembled, you start adding all of the cool little details that bring the set to life. This includes the actual title of the book as well as the beady little eyes and spikey little feelers.Once you snap the cover onto the top of your book frame, it starts looking like a legit Monster Book of Monsters. And while the cover is really the turning point, it's all of the additional details you add on after this that start to give it an air of life. As you build the frame and the cover of the book you will have added a bunch of what appear to be little LEGO arms near the front pages. These will become the holders for the book's spiny little teeth. There are twelve of these in total and once they're snapped in you can articulate them in whatever direction feels right.The larger teeth get added after that, which is when it starts to look like it could actually chomp you. The instructions tell you to add one set of teeth at a time, but I decided to build them both first and add them all at once for dramatic effect. When all of the teeth are attached, you'll have what looks to be a Monster Book of Monsters that's actually capable of doing some chomping.The final step of this set is the most interesting part. At this point you've built a fairly realistic monster book, but it's still an empty shell waiting for some internal components to get it running. Now you essentially have to build a working pull-back car that you place inside so it can get to chomping on its own.The motorized aspect of this build is pretty straightforward, but it's a nice break from all of the detail work I had just done to be suddenly building a little wheeled car. It was also really fun to see how well the little car I'd just built snapped into place on the inside of the book itself.After I fully put everything together, I immediately tried out the rolling chomping action. It's a neat trick that turns what looks like a display set into an actual toy you can play with. The roll-back mechanism only goes so far back, so it doesn't actually roll that far, but the chomping action makes up for the lack of distance. As it moves forward you can actually hear the teeth clacking together. I had both of my younger nephews play with the set afterwards and they enjoyed playing with it almost as much as l did. The gimmick wears off fairly quickly after you've done it a few times, but afterwards you still have a really cool looking set you can display somewhere.The price of the set is fairly reasonable at $60, placing it well below some of the most expensive sets on the market right now. Any of the franchise-specific sets that come out are always going to be more expensive than a non-franchise set with a similar number of pieces, and this has consistently remained true for all LEGO Harry Potter sets. All-in-all, it's a set I'd recommend to any fan of Harry Potter and LEGO. It's a fun and simple build you can knock out in an afternoon, and the finished product would make for a great Harry Potter gift you can display on a shelf or your desk.LEGO Harry Potter Chomping Book of Monsters, Set #76449, retails for $59.99, and it is composed of 518 pieces. It is available at the LEGO Store beginning on June 1, 2025.

Best of the rest Research roundup: 7 stories we almost missed Also: drumming chimpanzees, picking styles of two jazz greats, and an ancient underground city's soundscape Jennifer Ouellette – May 31, 2025 5:37 pm | 4 Time lapse photos show a new ping-pong-playing robot performing a top spin. Credit: David Nguyen, Kendrick Cancio and Sangbae Kim Time lapse photos show a new ping-pong-playing robot performing a top spin. Credit: David Nguyen, Kendrick Cancio and Sangbae Kim Story text Size Small Standard Large Width * Standard Wide Links Standard Orange * Subscribers only   Learn more It's a regrettable reality that there is never time to cover all the interesting scientific stories we come across each month. In the past, we've featured year-end roundups of cool science stories we (almost) missed. This year, we're experimenting with a monthly collection. May's list includes a nifty experiment to make a predicted effect of special relativity visible; a ping-pong playing robot that can return hits with 88 percent accuracy; and the discovery of the rare genetic mutation that makes orange cats orange, among other highlights. Special relativity made visible Credit: TU Wien Perhaps the most well-known feature of Albert Einstein's special theory of relativity is time dilation and length contraction. In 1959, two physicists predicted another feature of relativistic motion: an object moving near the speed of light should also appear to be rotated. It's not been possible to demonstrate this experimentally, however—until now. Physicists at the Vienna University of Technology figured out how to reproduce this rotational effect in the lab using laser pulses and precision cameras, according to a paper published in the journal Communications Physics. They found their inspiration in art, specifically an earlier collaboration with an artist named Enar de Dios Rodriguez, who collaborated with VUT and the University of Vienna on a project involving ultra-fast photography and slow light. For this latest research, they used objects shaped like a cube and a sphere and moved them around the lab while zapping them with ultrashort laser pulses, recording the flashes with a high-speed camera. Getting the timing just right effectively yields similar results to a light speed of 2 m/s. After photographing the objects many times using this method, the team then combined the still images into a single image. The results: the cube looked twisted and the sphere's North Pole was in a different location—a demonstration of the rotational effect predicted back in 1959. DOI: Communications Physics, 2025. 10.1038/s42005-025-02003-6  (About DOIs). Drumming chimpanzees A chimpanzee feeling the rhythm. Credit: Current Biology/Eleuteri et al., 2025. Chimpanzees are known to "drum" on the roots of trees as a means of communication, often combining that action with what are known as "pant-hoot" vocalizations (see above video). Scientists have found that the chimps' drumming exhibits key elements of musical rhythm much like humans, according to  a paper published in the journal Current Biology—specifically non-random timing and isochrony. And chimps from different geographical regions have different drumming rhythms. Back in 2022, the same team observed that individual chimps had unique styles of "buttress drumming," which served as a kind of communication, letting others in the same group know their identity, location, and activity. This time around they wanted to know if this was also true of chimps living in different groups and whether their drumming was rhythmic in nature. So they collected video footage of the drumming behavior among 11 chimpanzee communities across six populations in East Africa (Uganda) and West Africa (Ivory Coast), amounting to 371 drumming bouts. Their analysis of the drum patterns confirmed their hypothesis. The western chimps drummed in regularly spaced hits, used faster tempos, and started drumming earlier during their pant-hoot vocalizations. Eastern chimps would alternate between shorter and longer spaced hits. Since this kind of rhythmic percussion is one of the earliest evolved forms of human musical expression and is ubiquitous across cultures, findings such as this could shed light on how our love of rhythm evolved. DOI: Current Biology, 2025. 10.1016/j.cub.2025.04.019  (About DOIs). Distinctive styles of two jazz greats Jazz lovers likely need no introduction to Joe Pass and Wes Montgomery, 20th century guitarists who influenced generations of jazz musicians with their innovative techniques. Montgomery, for instance, didn't use a pick, preferring to pluck the strings with his thumb—a method he developed because he practiced at night after working all day as a machinist and didn't want to wake his children or neighbors. Pass developed his own range of picking techniques, including fingerpicking, hybrid picking, and "flat picking." Chirag Gokani and Preston Wilson, both with Applied Research Laboratories and the University of Texas, Austin, greatly admired both Pass and Montgomery and decided to explore the underlying the acoustics of their distinctive playing, modeling the interactions of the thumb, fingers, and pick with a guitar string. They described their research during a meeting of the Acoustical Society of America in New Orleans, LA. Among their findings: Montgomery achieved his warm tone by playing closer to the bridge and mostly plucking at the string. Pass's rich tone arose from a combination of using a pick and playing closer to the guitar neck. There were also differences in how much a thumb, finger, and pick slip off the string:  use of the thumb (Montgomery) produced more of a "pluck" compared to the pick (Pass), which produced more of a "strike." Gokani and Wilson think their model could be used to synthesize digital guitars with a more realistic sound, as well as helping guitarists better emulate Pass and Montgomery. Sounds of an ancient underground city Credit: Sezin Nas Turkey is home to the underground city Derinkuyu, originally carved out inside soft volcanic rock around the 8th century BCE. It was later expanded to include four main ventilation channels (and some 50,000 smaller shafts) serving seven levels, which could be closed off from the inside with a large rolling stone. The city could hold up to 20,000 people and it  was connected to another underground city, Kaymakli, via tunnels. Derinkuyu helped protect Arab Muslims during the Arab-Byzantine wars, served as a refuge from the Ottomans in the 14th century, and as a haven for Armenians escaping persecution in the early 20th century, among other functions. The tunnels were rediscovered in the 1960s and about half of the city has been open to visitors since 2016. The site is naturally of great archaeological interest, but there has been little to no research on the acoustics of the site, particularly the ventilation channels—one of Derinkuyu's most unique features, according to Sezin Nas, an architectural acoustician at Istanbul Galata University in Turkey.  She gave a talk at a meeting of the Acoustical Society of America in New Orleans, LA, about her work on the site's acoustic environment. Nas analyzed a church, a living area, and a kitchen, measuring sound sources and reverberation patterns, among other factors, to create a 3D virtual soundscape. The hope is that a better understanding of this aspect of Derinkuyu could improve the design of future underground urban spaces—as well as one day using her virtual soundscape to enable visitors to experience the sounds of the city themselves. MIT's latest ping-pong robot Robots playing ping-pong have been a thing since the 1980s, of particular interest to scientists because it requires the robot to combine the slow, precise ability to grasp and pick up objects with dynamic, adaptable locomotion. Such robots need high-speed machine vision, fast motors and actuators, precise control, and the ability to make accurate predictions in real time, not to mention being able to develop a game strategy. More recent designs use AI techniques to allow the robots to "learn" from prior data to improve their performance. MIT researchers have built their own version of a ping-pong playing robot, incorporating a lightweight design and the ability to precisely return shots. They built on prior work developing the Humanoid, a small bipedal two-armed robot—specifically, modifying the Humanoid's arm by adding an extra degree of freedom to the wrist so the robot could control a ping-pong paddle. They tested their robot by mounting it on a ping-pong table and lobbing 150 balls at it from the other side of the table, capturing the action with high-speed cameras. The new bot can execute three different swing types (loop, drive, and chip) and during the trial runs it returned the ball with impressive accuracy across all three types: 88.4 percent, 89.2 percent, and 87.5 percent, respectively. Subsequent tweaks to theirrystem brought the robot's strike speed up to 19 meters per second (about 42 MPH), close to the 12 to 25 meters per second of advanced human players. The addition of control algorithms gave the robot the ability to aim. The robot still has limited mobility and reach because it has to be fixed to the ping-pong table but the MIT researchers plan to rig it to a gantry or wheeled platform in the future to address that shortcoming. Why orange cats are orange Credit: Astropulse/CC BY-SA 3.0 Cat lovers know orange cats are special for more than their unique coloring, but that's the quality that has intrigued scientists for almost a century. Sure, lots of animals have orange, ginger, or yellow hues, like tigers, orangutans, and golden retrievers. But in domestic cats that color is specifically linked to sex. Almost all orange cats are male. Scientists have now identified the genetic mutation responsible and it appears to be unique to cats, according to a paper published in the journal Current Biology. Prior work had narrowed down the region on the X chromosome most likely to contain the relevant mutation. The scientists knew that females usually have just one copy of the mutation and in that case have tortoiseshell (partially orange) coloring, although in rare cases, a female cat will be orange if both X chromosomes have the mutation. Over the last five to ten years, there has been an explosion in genome resources (including complete sequenced genomes) for cats which greatly aided the team's research, along with taking additional DNA samples from cats at spay and neuter clinics. From an initial pool of 51 candidate variants, the scientists narrowed it down to three genes, only one of which was likely to play any role in gene regulation: Arhgap36. It wasn't known to play any role in pigment cells in humans, mice, or non-orange cats. But orange cats are special; their mutation (sex-linked orange) turns on Arhgap36 expression in pigment cells (and only pigment cells), thereby interfering with the molecular pathway that controls coat color in other orange-shaded mammals. The scientists suggest that this is an example of how genes can acquire new functions, thereby enabling species to better adapt and evolve. DOI: Current Biology, 2025. 10.1016/j.cub.2025.03.075  (About DOIs). Not a Roman "massacre" after all Credit: Martin Smith In 1936, archaeologists excavating the Iron Age hill fort Maiden Castle in the UK unearthed dozens of human skeletons, all showing signs of lethal injuries to the head and upper body—likely inflicted with weaponry. At the time, this was interpreted as evidence of a pitched battle between the Britons of the local Durotriges tribe and invading Romans. The Romans slaughtered the native inhabitants, thereby bringing a sudden violent end to the Iron Age. At least that's the popular narrative that has prevailed ever since in countless popular articles, books, and documentaries. But a paper published in the Oxford Journal of Archaeology calls that narrative into question. Archaeologists at Bournemouth University have re-analyzed those burials, incorporating radiocarbon dating into their efforts. They concluded that those individuals didn't die in a single brutal battle. Rather, it was Britons killing other Britons over multiple generations between the first century BCE and the first century CE—most likely in periodic localized outbursts of violence in the lead-up to the Roman conquest of Britain. It's possible there are still many human remains waiting to be discovered at the site, which could shed further light on what happened at Maiden Castle. DOI: Oxford Journal of Archaeology, 2025. 10.1111/ojoa.12324  (About DOIs). Jennifer Ouellette Senior Writer Jennifer Ouellette Senior Writer Jennifer is a senior writer at Ars Technica with a particular focus on where science meets culture, covering everything from physics and related interdisciplinary topics to her favorite films and TV series. Jennifer lives in Baltimore with her spouse, physicist Sean M. Carroll, and their two cats, Ariel and Caliban. 4 Comments

Welcome back to TechCrunch Mobility — your central hub for news and insights on the future of transportation. Sign up here for free — just click TechCrunch Mobility! It might have been a short week, but there was still plenty of news, including another Zoox recall, an update on the Stellantis-Amazon partnership, and a few startup-funding deals.  One item of note: This week, I wrote about Carma Technology and its patent infringement lawsuit against Uber. This isn’t a patent troll situation, and the IP attorneys I have spoken with say it will be a challenging case for Uber.  The gist? Carma, which was formed in 2007 by serial entrepreneur and SOSV Ventures founder Sean O’Sullivan, filed a lawsuit earlier this year against Uber, alleging the company infringed on five of its patents that are related to the system of matching riders (or packages) with capacity in vehicles. In other words, ride-sharing. IP attorney Larry Ashery provided the money quote that explains why this is such a complicated and challenging case.  “What’s important to understand here is, Carma isn’t just asserting five patents. They have had a very sophisticated strategy of patent procurement that they’ve been working on for the past 18 years.” Carma’s five patents are part of a 30-patent family that are all related and connected to the original filing date. That matters because each of the five asserted patents contains multiple patent claims, which define the legal boundaries of the invention. These individual claims — not just the patents as a whole — are what Carma is asserting against Uber.That means Uber will have to address and defend against each asserted claim, making the litigation more complex and difficult to defeat, Ashery noted.  Techcrunch event Save now through June 4 for TechCrunch Sessions: AI Save $300 on your ticket to TC Sessions: AI—and get 50% off a second. Hear from leaders at OpenAI, Anthropic, Khosla Ventures, and more during a full day of expert insights, hands-on workshops, and high-impact networking. These low-rate deals disappear when the doors open on June 5. Exhibit at TechCrunch Sessions: AI Secure your spot at TC Sessions: AI and show 1,200+ decision-makers what you’ve built — without the big spend. Available through May 9 or while tables last. Berkeley, CA | June 5 REGISTER NOW Let’s get into the rest of the news.  A little bird Image Credits:Bryce Durbin A few little birds have been chirping at us for months now about a new autonomous vehicle technology startup that has been quietly plugging along for a year. The interesting nugget about this startup — which is called Bedrock Robotics — is who is behind it: Boris Sofman, who led Waymo’s self-driving trucks program and previously co-founded and led the popular consumer robotics company Anki.  The San Francisco-based startup is still in stealth, but my sources tell me it has raised considerable venture funds. Bedrock Robotics is working on a self-driving kit that retrofits onto construction equipment and other heavy machinery, according to a filing with the U.S. Patent and Trademark Office.  Got a tip for us? Email Kirsten Korosec at kirsten.korosec@techcrunch.com or my Signal at kkorosec.07, Sean O’Kane at sean.okane@techcrunch.com, or Rebecca Bellan at rebecca.bellan@techcrunch.com. Or check out these instructions to learn how to contact us via encrypted messaging apps or SecureDrop. Deals! Image Credits:Bryce Durbin Firefly Aerospace received a $50 million investment from Northrop Grumman as part of its Series D round. This investment will further advance production of the startup’s  co-developed medium launch vehicle, now known as Eclipse. Pallet, a warehouse logistics software startup based in Fremont, California, raised $27 million in a Series B funding round led by General Catalyst. Bain Capital Ventures, Activant Capital, and Bessemer Venture Partners also participated. Volteras, a London-based startup building virtual connective tissue that will allow plugged-in EVs to offer their batteries to support the grid, closed an $11.1 million Series A led by Union Square Ventures, with participation from Edenred, Exor, Long Journey Ventures, and Wex. Way Data Technologies, a fleet management startup founded by veterans of Lucid Motors and Wolt, raised €2.6 million ($2.95 million) in pre-seed funding led by Pale Blue Dot, with participation from 10x Founders and Greens Ventures.  Notable reads and other tidbits Image Credits:Bryce Durbin Autonomous vehicles Rivr’s four-wheeled, stair-climbing delivery robot — which its CEO and founder, Marko Bjelonic, describes as a dog on roller skates — will ferry packages from Veho vans directly to customers’ front doors as part of a pilot program in Austin, Texas. Both companies see this small pilot as a critical step toward solving a unique slice of the end-to-end autonomous delivery journey.   TuSimple (now CreateAI) sent a trove of sensitive data — effectively the blueprint of an American-made autonomous vehicle system — to a Beijing-owned firm after committing to the U.S. government that it would cease such transfers under a national security agreement. The revelation, first reported by the Wall Street Journal, prompted numerous “not surprised” responses from several readers and sources within the industry. Zoox issued its second voluntary software recall in a month, following a collision between one of its robotaxis and an e-scooter rider in San Francisco on May 8. The incident is notable, largely for what happened after the unoccupied Zoox vehicle operating at low speed was struck by the e-scooter after braking to yield at an intersection.  According to Zoox, the e-scooterist fell to the ground directly next to the vehicle and the “robotaxi began to move and stopped after completing the turn, but did not make further contact with the e-scooterist.” In other Zoox news, the company announced it was the “official robotaxi partner of Resorts World Las Vegas.” As part of the deal, there will be a dedicated and Zoox-branded robotaxi pickup and drop-off location at Resorts World Las Vegas.  Electric vehicles, charging, & batteries The Tesla Cybertruck is having a rough time. Dozens of unsold Tesla Cybertrucks are piling up at a Detroit shopping center parking lot. And while Cybertruck owners are now allowed by Tesla to trade in their vehicles for the first time since they hit the market, they’ll face a steep depreciation hit. CarGurus recently showed depreciation rates of up to 45%. Meanwhile, Tesla sales in Europe and the U.K. have fallen by nearly half, according to data released by the European Automobile Manufacturers Association.  The Volkswagen emissions cheating scandal of 2015 rippled through the automotive sector and prompted the company (and later followed by others) to shift away from diesel and toward hybrids and electric vehicles. Now, four former Volkswagen executives have received prison sentences for their role. In-car tech Amazon is no longer working with Stellantis to create in-car software for the automaker’s vehicles. The partnership, first announced in January 2022, was part of Stellantis’ plan to generate $22.5 billion annually from software. Stellantis told TechCrunch it would be pivoting to an Android-based system.

Click to enlarge Housing build-ups in Dhaka. Image: Jeremy Smith 1 of 11 Marina Tabassum Architects’ Bait Ur Rouf Jame Mosque. Image: Jeremy Smith 2 of 11 Marina Tabassum Architects’ Bait Ur Rouf Jame Mosque. Image: Jeremy Smith 3 of 11 Marina Tabassum Architects’ Bait Ur Rouf Jame Mosque. Image: Jeremy Smith 4 of 11 Marina Tabassum Architects’ Bait Ur Rouf Jame Mosque. Image: Jeremy Smith 5 of 11 Old Dhaka and 45,000 people per square kilometre. Image: Jeremy Smith 6 of 11 Buses collage life on the roads. Image: Jeremy Smith 7 of 11 Lattice-work roofing of the informal settlements, viewed from Salauddin Ahmed’s Atelier Robin Architects studio. Image: Jeremy Smith 8 of 11 The colour and vibrancy of Dhaka life. Image: Jeremy Smith 9 of 11 The colour and vibrancy of Dhaka life. Image: Jeremy Smith 10 of 11 The colour and vibrancy of Dhaka life. Image: Jeremy Smith 11 of 11 Architects Jeremy Smith and Murali Bhaskar go looking for water and hard-to-find buildings in what is already one of the world’s most populous mega-cities, Dhaka. Architecture here is rarely properly lost. Even now, as we navigate a way to higher-density living, we tend not to misplace buildings. There’s still the space to eye-spy our most wayward elevations. At worst, we might GPS a tricky driveway or pull out an Andrew Barrie map to pinpoint some retiring architecture. But what happens if you really diamond-up the density. At our country-wide 19-people-per-square-kilometre or even downtown Auckland’s sky-high 2500, you can see what’s coming and cities mostly plan out as planned. Teleport forward though to 45,000-people-per-square-kilometre and cities accelerate lives of their own. Here, anything and everything can be lost in the crowd, even buildings. So, on a 2024 invitation from the Bengal Institute for Architecture, Landscape and Settlements to share some Unfinished & Far Far Away adventures in “the toughest city in the world”,1 I pack some extra compassing in architect buddy Murali Bhaskar and go architectural orienteering in Dhaka. It’s hot hot; architecture can wait. We start by looking for water. This, after all, is the land of rivers. Following on from Aotearoa in 2017 being the first to give a specific river, Te Awa Tupua, legal rights, Bangladesh in 2019 became the first country to grant all of its some 700 rivers the same legal status that humans have.2 But the count varies. Protections readily miss smaller tributaries and, with all that water pouring out of the Himalayas and delta-ing into the Bay of Bengal, the land is accretional. The colour and vibrancy of Dhaka life. Image:  Jeremy Smith From the million or so starters in a newly independent 1971 Dhaka, today, it is the fourth-most-populated city in the world with somewhere near 25 million people. Whether for disaster relief, economics or just the bright lights, urbanisation draws more than 400,000 new residents annually to the city. Throw in some family time and, with Tokyo and Shanghai shrinking, Dhaka’s population is predicted to be an eyewatering 35 million by 2050 (and outnumbered only by Delhi and, in some books, Mumbai). When every possible place looks inhabited, it’s not just water that can quickly go to ground. Kazi Khaleed Ashraf, who heads the Bengal Institute, has some learned thinkers in tow in trying to keep pace architecturally. Throw in societal and climatic concerns, and questions about how contextualisation might operate at such speed and the inquiry takes global precedence. Kenneth Frampton, Rounaq Jahan, Suha Özkan, Shamsul Wares and, formerly, BV Doshi, sit on the advisory panel and have drawn other such worldly thinkers as Juhani Pallasmaa, David Leatherbarrow and, even, Peter Stutchbury from down our way to come experience an urban existence “symptomatic of the gravest environmental challenges”.3 It’s serious stuff. Ashraf researches “hydraulic flow in which horizontal and vertical movements of water may direct architectural and landscape formations”.4 This ‘form follows water’ mantra isn’t just free planning Le Corbusier’s ‘form follows function’ with some Charles Correa’s ‘form follows climate’ to connect to life outside, it’s a watery warning to the navigations quickly necessitating within our collective future. Ashraf’s timely prompt that “Embankment is a barrier. How can we deconstruct it”5 can be seen in the way we increasingly plan the separation of wet and dry in our cities. Main streets like Queen Street and Cambridge Terrace already run down streams and our remaining water edges risk becoming increasingly marginalised by infrastructure rising with the water. But the steering is different at density and Dhaka’s rapid growth has meant letting go of the controls with which we still understand cities to flow. As Ashraf puts it, “Dhaka builds furiously”. While we dutifully plan buildings as if crawling a length or two at the aquatic centre, architecture in Dhaka must high-dive into a torrent. Its buildings must learn to surface and really start kicking. Anything trying to hold ground risks being swept away. Dhaka has become a river. As if to university-entrance the swimming lesson to densification, we’ve arrived only a few months after an Indian helicopter plucked Bangladesh’s president from a student-led flood of unrest amongst civil rights and corruption demonstrations. We might think of universities as offering time for trying things on but, sink or swim, the students here now run the country. With the parliament dissolved, there’s no chance of us seeing inside Louis Kahn’s 1982 National Assembly Building, which, like many of Dhaka’s institutional buildings, took on something of a freshening in the coup. Remembering our government’s pre-departure, bold-italic travel advisory, we head out to practise avoiding street demonstrations and are rewarded with a fenced-off view of Kahn’s epic, which brought global architectural discourse to post-independent Bangladesh. No such authoritative access issues back at the university, where, amongst the student political murals, we visit Muzharul Islam’s 1953–1956 Fine Arts Institute. Islam introduced modernism to the then East Pakistan6 and, in testament, the school still functions as a school, with its external verandah circulation and louvred ventilating classrooms. The rallying extends to getting around with cars sporting dodgem bumpers. Travelling 10 kilometres takes an hour, a million beeps and some financial socialising out the windows. Public transport may be working hard to keep pace with the kinetic city but it starts at the back of the grid, as the panelwork to the buses visibly collage. Getting to where we want to go takes some effort. An above-ground subway system has been started but not finished and the folk enticingly riding on top of trains typically aren’t off looking for architecture. There’s the three-wheeled rickshaw option, of course: formerly pedalled but, in recent months, souped-up with the allowance of car batteries to the back axle. Even so, manoeuvring further than nearby takes more than any rider is up for. So, as we head out for lunch with architect Marina Tabassum and then beep beep beep out further to her extraordinary Bait Ur Rouf Jame Mosque in Dhaka’s northern expansion, we learn that having everything close helps. Neighbourhoods remain important in megacities. Marina Tabassum Architects’ Bait Ur Rouf Jame Mosque. Image:  Jeremy Smith The mosque deserves the full medley and gently uplifts as all great architecture does, be it for the community or off-the-street visitors like us. Marina Tabassum Architects is, of course, internationally renowned for its architectural stand against globalised buildings that are out of place and context, notably winning an Aga Khan Award for Architecture in 2016 and being selected to undertake the 2025 Serpentine Pavilion in London. With the site at 13 degrees to the axis of qibla in Mecca, Tabassum sits the mosque on a five-step plinth with a squared, ventilating brick jali and a circular ceilinged prayer space rotated off centre. In a lesson to building only what you need, the spaces between remain unroofed and the perimeter daylight illumination provides a diminished and equalling light to the prayer space. It needs no explanation: look up and there are constellations in the sky; look outwards and find community; look to the mihrab notching the outside wall and orientate to Mecca. Tabassum’s dive is splashless, for the mosque has self-navigated being enveloped by the city. The entry pond may have gone and the mihrab now reveals buildings rather than fields but the light still shines the way. Four hundred people take prayer several times a day within the inner circle, and the weekend Friday crowd spreads outwards to the borders and plinth. We are two days in at this point and our not-getting-lost-practice is going well. We meet architect Salauddin Ahmed whose Atelier Robin Architects studio and gallery in a former tannery building is so hidden away that it feels both lost and right at home. It’s surrounded by the latticing roofs of informal settlements and, remarkably, feels quiet and yet, genuinely, part of the city. No mean feat in a city, “living”, as Ahmed puts it, “as if this is the last day on earth”. Noise is life in Dhaka; Ahmed’s windows are open and the river is flowing. We talk the same language of architecture understanding existing context and needing to accommodate change in shorter and shorter time frames. Where I say “participate”, Ahmed terms “navigate” and without any sense of overseeing for there is just so much life in Dhaka. We mean the same thing and get there from very different landscapes. The next morning, we go where transport can’t. Old Dhaka’s alleyways require some extra eyes, so Ahmed calls in his friend, photographer Khademul Insan, who has lived this labyrinth. This is the densest part of Dhaka and there’s a lot in the air. “Wear this,” says Ahmed, passing a mask. “Otherwise, you’ll cough for four weeks.” It is deep. There’s so much WiFi that it strands like some kind of underworld sun-shading. Our service provider isn’t expecting this kind of roaming and we have no connection. If our collective Kiwi wayfinding skills might have fluked a way in, we certainly need leading out. As the lanes narrow, the industry broadens into some kind of Mad Max circular economy where everything of anything has value and the fires that keep these people afloat run continuously. Mercifully, it’s not raining or there’d be a different type of river afoot. Fifteen kilometres and all day later, we’ve walked to search for culturally significant mosques, houses, courtyards and schools. Some we locate; others, there’s just no finding. Maybe they are there, maybe they aren’t. Occasionally, there are scripts cautioning against graffiti or carving a name into the stonework at the risk of imprisonment, but there are few clues to any architectural history. In the pinch, buildings jostle to just about every possible place a building might go: on top, under, in front, behind. They infill courtyards, hang over laneways, squeeze into gaps, even penalising what’s left of a football field. Every seat is taken, literally. Whenever we find public space off the street, there are couples dating. There’s a lot of romance in 25 million. Eventually, we exit and finally see a river. I remember the swimming lessons are strictly metaphoric and look but don’t touch. You don’t need to get wet to learn how to swim. As Ahmed guides, and he speaks with Ashraf, Tabassum, Insan and experience to what we must remember in densifying our own cities. “I belong to one of the last generations that truly understand what it means to have neighbours.”7 Context counts no matter the size. Our rivers are not yet streams. REFERENCES 1 Kazi Khaleed Ashraf, ‘Note from the Director General: Land, Water and Settlements’. bengal.institute/about Accessed 29.12.2024. 2 Ashley Westerman, 2019, “Should rivers have same legal rights as humans? A growing number of voices say yes”, National Public Radio. npr.org/2019/08/03/740604142 3 August 2019. 3 Kazi Khaleed Ashraf, ‘Note from the Director General: Land, Water and Settlements’. bengal.institute/about Accessed 29.12.2024. 4 Kazi Khaleed Ashraf, ‘Wet Narratives: Architecture Must Recognise that the Future is Fluid’ in The Mother Tongue of Architecture: Selected writings of Kazi Khaleed Ashraf. ORO Editions and Bengal Institute for Architecture, Landscape and Settlements, China: p. 251. 5 Ibid. 6 Adnan Morshed, 2017, ‘Modernism as Postnationalist Politics: Muzharul Islam’s Faculty ofFine Arts (1953–1956)’, Journal of the Society of Architectural Historians, 2017. 7 Salauddin Ahmed, 2024, “Design must not be a superimposed idea, but a logical one”, The Daily Star, Dhaka, 25 December 2024.

Tech Wheeled, rugged robot dog built for extreme industrial missions New robot to revolutionize industrial inspection and disaster response Published May 22, 2025 6:00am EDT close Wheeled, rugged robot dog built for extreme industrial missions The machine is designed to inspect industrial sites, respond to disasters, carry out logistics operations and support scientific research. Deep Robotics, a company from China, has unveiled a durable four-legged robot built to operate in extreme environments that humans struggle to traverse. It's called the Lynx M20, and it builds upon the agility of its predecessor, the Lynx robot dog.This versatile machine is designed to handle anything from inspecting industrial sites and responding to disasters to carrying out logistics operations and supporting scientific research. Here’s what you need to know.JOIN THE FREE "CYBERGUY REPORT": GET MY EXPERT TECH TIPS, CRITICAL SECURITY ALERTS AND EXCLUSIVE DEALS, PLUS INSTANT ACCESS TO MY FREE "ULTIMATE SCAM SURVIVAL GUIDE" WHEN YOU SIGN UP! Lynx M20 (Deep Robotics)Advanced terrain capabilities set the Lynx M20 apartThe Lynx M20 combines wheels and legs to traverse challenging terrain. It can move at an average speed of 4.5 mph, but in optimal conditions, it can go up to 11 mph. It can also walk and climb obstacles using its independent wheel-locking mechanism. Its impressive traversal makes it able to cross rugged mountain paths, muddy wetlands and urban ruins.The Lynx M20 is also great at navigation and monitoring, with its 96-line lidar system, which gives it 360-degree awareness. It also has a front-facing wide-angle camera capable of livestreaming and bidirectional lighting for venturing into dark environments.AI-powered intelligence for real-world challengesWhat really sets the Lynx M20 apart is its use of advanced artificial intelligence. The robot is equipped with AI motion-control algorithms that allow it to autonomously perceive and adapt to its environment, adjusting its posture and gait to handle everything from rocky trails to debris-strewn ruins.Thanks to reinforcement learning, the Lynx M20 can actually improve its performance over time, learning from experience so that it gets even better at tackling new or unexpected obstacles. This means it's not just following a set of pre-programmed instructions but is actively making decisions and getting smarter with every mission.The robot's dual 96-line lidar sensors and wide-angle cameras feed data into its onboard processors, enabling real-time mapping, omnidirectional obstacle avoidance and autonomous navigation, even in low visibility or completely dark environments.WORLD'S FIRST AI-POWERED INDUSTRIAL SUPER-HUMANOID ROBOT Lynx M20 (Deep Robotics)IP66 rated: Built to be toughThe Lynx M20 features IP66 water and dust resistance and operates in temperatures from minus 4 degrees Fahrenheit to 131 degrees Fahrenheit. This toughness makes it suitable for harsh weather conditions. Weighing 72.8 pounds, it can carry up to a 33-pound payload, climb 31.5-inch obstacles and navigate 45-degree inclines. The robot runs for 2.5 to 3 hours per charge with a hot-swap battery system to keep it going longer. Lynx M20 (Deep Robotics)The pro variant has advanced featuresThe Lynx M20 also has a Pro version, which includes autonomous charging, SLAM-based positioning and advanced navigation tools. It has more connectivity options, like USB and Gigabit Ethernet, to enhance its functionality.PricingThe price of the Lynx M20 is unknown as Deep Robotics has yet to reveal the details. However, its standard Lynx robodog is estimated to cost around $18,000, meaning this could cost more.CHINA'S TRON 1 ROBOT HURDLES OVER OBSTACLES LIKE THEY'RE NOTHING Lynx M20 (Deep Robotics)What does this mean for you?If you work in industries like construction, energy, logistics or emergency response, the Lynx M20 could be a game changer. Its ability to handle rough terrain, carry heavy loads and operate in extreme weather means you can send it into places that are risky or even impossible for people to reach.Whether it is inspecting power lines after a storm, delivering supplies across a muddy worksite or helping out in disaster zones, this robot is designed to keep your team safer and your operations running smoothly. Its hot-swap battery system also means less downtime, so you can rely on it for long shifts without constant recharging interruptions.Kurt's key takeawaysThe Lynx M20 isn't just any robot. It's a tough, smart machine built to handle some of the hardest jobs out there. By combining wheels and legs, it moves in ways that most robots can't, making it perfect for tricky terrain and tough conditions.We don't know the exact price yet, but judging by what it offers, it's clearly designed for serious work. If you're dealing with challenging environments and need a reliable helper, this robot might just be the partner you've been waiting for.CLICK HERE TO GET THE FOX NEWS APPWhat are your thoughts on how industrial inspection robots like this might transform workplace safety and efficiency? Let us know by writing us at Cyberguy.com/Contact.For more of my tech tips and security alerts, subscribe to my free CyberGuy Report Newsletter by heading to Cyberguy.com/Newsletter.Ask Kurt a question or let us know what stories you'd like us to cover.Follow Kurt on his social channels:Answers to the most-asked CyberGuy questions:New from Kurt:Copyright 2025 CyberGuy.com. All rights reserved. Kurt "CyberGuy" Knutsson is an award-winning tech journalist who has a deep love of technology, gear and gadgets that make life better with his contributions for Fox News & FOX Business beginning mornings on "FOX & Friends." Got a tech question? Get Kurt’s free CyberGuy Newsletter, share your voice, a story idea or comment at CyberGuy.com.

Fireworks burst in the background behind a Bradley fighting vehicle at the 2019 Salute to America event that was initially supposed to be a military parade. Sarah Silbiger/Getty Images 2025-05-21T21:31:44Z Save Saved Read in app This story is available exclusively to Business Insider subscribers. Become an Insider and start reading now. Have an account? The Army is preparing for a massive 250th birthday parade in Washington, DC, on June 14. The event, designated a national security special event, coincides with President Donald Trump's birthday. The parade will feature tanks, aircraft, and 6,700 soldiers from all Army units. The US Army has shared new details for its massive 250th birthday celebration, which is set to be a mind-boggling logistical feat, with Abrams tanks, artillery, Strykers, horses, and a lot more descending on the nation's capital.The week-long celebratory event is officially designated as a "national security special event," a term used for major events like the Super Bowl or presidential inaugurations. These require extensive inter-agency coordination.This event has been in the works for two years, but was only recently updated to include a parade on June 14 that will coincide with President Donald Trump's birthday. Army officials on Wednesday did not specify to reporters whose idea it was to insert the military parade into the already-planned events.Trump made it known during his first term that he wanted a major military parade. That event never came to fruition.At least 200,000 people are expected to attend the upcoming event, officials said.The parade will start in the early evening and will proceed along Constitution Avenue and continue near the National Mall, a shorter route than previously expected.Here's what's coming to DC for the parade:There will be 28 M1A1 Abrams tanks, each roughly 70-ton tracked vehicle equipped with a 120mm cannon, among other armaments, as well as 28 Bradley Fighting vehicles, lighter tracked armor with 25mm M242 Bushmaster chain guns. Additionally, 28 Strykers will also be included, flexible 20-ton eight-wheeled vehicles with mixed armaments used for a range of missions.Abrams tanks, Strykers, and Bradley infantry fighting vehicles form the backbone of two of the three types of Army "brigade combat teams," self-sufficient units that can fight and maneuver on the battlefield. Some are centered on infantry, others on "armor" like the Abrams and Bradley, and others on the versatile Strykers. A Bradley fighting vehicle sits as a static display at the 2019 Salute to America event. BRENDAN SMIALOWSKI/AFP via Getty Images The parade will also feature 4 Paladins, tracked self-propelled 155mm howitzers each weighing over 27 tons. There will also be "several" pieces of towed artillery including M777s and M119s. Fifty aircraft are expected to participate, including helicopters like the multi-mission Black Hawks, heavy-lift Chinooks, and attack Apaches. Army officials told reporters they are working closely with the FAA and DC's Reagan National Airport for parade flyover deconfliction, though final details regarding impact to local airports are still being hashed out.All weapons systems will be disabled and inspected by the Secret Service prior to the event, officials told reporters. No ammunition, be it blank or live rounds, will be distributed to soldiers.Roughly 6,700 soldiers — including active duty, reserve, National Guard, Reserve Officer Training Corps (ROTC), and special operations forces — are expected to participate.Some soldiers will wear historical uniforms specially made for this event, officials shared Wednesday, to reflect US Army traditions from the Revolutionary War through the Global War on Terror.World War II-era equipment including M4 Sherman tanks, B25 bombers, P51 Mustang fighter planes, and C47 Skytrains, will also be featured.Army equine units from across the country are also expected, including Arlington National Cemetery's Caisson Platoon.The Army's prestigious Golden Knights parachute team will end the celebration with a jump and will present a folded flag to the president. Folded flags are usually presented to grieving military families during funerals, but they are also sometimes presented at military retirement ceremonies or other milestone events as a gesture of respect.

Long before Grab rides and GPS directions, getting around in parts of Southeast Asia meant relying on human muscle and mechanical poetry. In Penang, that poetry rolled down the cobbled streets of George Town in the form of the trishaw, a three-wheeled chariot that was less about speed and more about spectacle. With the driver perched behind the passenger, pedaling like a stagehand moving the lead actor across a set, these vibrant vehicles blurred the lines between transport, craft, and theater. Their lineage traces back to 19th-century Japan, where the jinrikisha – literally “human-powered vehicle” – first emerged. Designed by Izumi Yosuke around 1869, it was a utilitarian marvel born out of necessity and swiftly adopted across Asia. When this mode of transport made its way to Malaysia, it evolved with local flair. Penang’s version added canopies, floral decorations, and a peculiar but charming reverse layout where the passenger faces backwards, getting a clear view of the city rather than of the rider. An addition of a third wheel turned the jinrikisha into a trike, replacing the hand-pulling operation with simple pedalling. As cars and scooters took over, trishaws faded from daily life, becoming nostalgic footnotes or tourist novelties… but now, a LEGO builder is turning them into a gorgeous brick-based collectible. Designer: WYCreation The trishaw’s gradual descent into obsolescence is precisely why WYCreation’s LEGO Penang Trishaw build feels so necessary. It doesn’t just document a cultural icon – it reconstructs it in 1,000 meticulously selected bricks, scaled to a commanding 1:8 model measuring 42cm long, 24cm wide, and 27cm tall. It’s bulky in all the right ways, capturing the vehicle’s ornamental charm and structural oddities with uncanny finesse. The curved canopy is especially arresting, made even more expressive by a bold reinterpretation: a LEGO flower used as its umbrella that acts as decor, a symbol of the trishaw, as well as a sun and rain-guard for the rider. Technically, this wasn’t an easy one. Trishaws, with their sloping profiles and offset balance, aren’t friendly to LEGO’s rectangular system. WYCreation spent weeks iterating designs, especially the wheel assembly, a notoriously difficult challenge due to its thin profile and structural integrity. Drawing inspiration from LEGO designer Đặng Hoàng, who previously used similar techniques in his own MOCs, the wheels here strike a rare balance between fragility and fidelity. What makes the build special isn’t just the execution, though. It’s the way it preserves atmosphere. From the flared fenders to the slightly tilted passenger seat, every element echoes a larger story, the kind you can almost hear through the rhythmic ring of a brass bell and the creak of aging pedals on asphalt. You’re not looking at a LEGO model. You’re seeing a street scene from 1970s Penang, filtered through brickwork. The Penang Trishaw is currently a submission on the LEGO Ideas forum – an online community where LEGO builders make and share their own creations, as well as vote for their favorites. Top-voted designs get vetted by LEGO’s internal team and then turned into box sets that anyone can buy. You can vote for WYCreation’s MOC (My Own Creation) on the LEGO Ideas website here.The post Penang’s Iconic Backward Trishaw Gets a Brilliant LEGO Makeover first appeared on Yanko Design.

Where's the antimatter? CERN gears up to ship antimatter across Europe A portable containment device that can be dropped on a truck. John Timmer – May 19, 2025 12:13 pm | 14 A truck loaded with some protons drove around the CERN campus recently. Credit: Sean Pavone A truck loaded with some protons drove around the CERN campus recently. Credit: Sean Pavone Story text Size Small Standard Large Width * Standard Wide Links Standard Orange * Subscribers only   Learn more There's a lot of matter around, which ensures that any antimatter produced experiences a very short lifespan. Studying antimatter, therefore, has been extremely difficult. But that's changed a bit in recent years, as CERN has set up a facility that produces and traps antimatter, allowing for extensive studies of its properties, including entire anti-atoms. Unfortunately, the hardware used to capture antiprotons also produces interference that limits the precision with which measurements can be made. So CERN decided that it might be good to determine how to move the antimatter away from where it's produced. Since it was tackling that problem anyway, CERN decided to make a shipping container for antimatter, allowing it to be put on a truck and potentially taken to labs throughout Europe. A shipping container for antimatter The problem facing CERN comes from its own hardware. The antimatter it captures is produced by smashing a particle beam into a stationary target. As a result, all the anti-particles that come out of the debris carry a lot of energy. If you want to hold on to any of them, you have to slow them down, which is done using electromagnetic fields that can act on the charged antimatter particles. Unfortunately, as the team behind the new work notes, many of the measurements we'd like to do with the antimatter are "extremely sensitive to external magnetic field noise." In short, the hardware that slows the antimatter down limits the precision of the measurements you can take. The obvious solution is to move the antimatter away from where it's produced. But that gets tricky very fast. The antimatter containment device has to be maintained as an extreme vacuum and needs superconducting materials to produce the electromagnetic fields that keep the antimatter from bumping into the walls of the container. All of that means a significant power supply, along with a cache of liquid helium to keep the superconductors working. A standard shipping container just won't do. So the team at CERN built a two-meter-long portable containment device. On one end is a junction that allows it to be plugged into the beam of particles produced by the existing facility. That junction leads to the containment area, which is blanketed by a superconducting magnet. Elsewhere on the device are batteries to ensure an uninterrupted power supply, along with the electronics to run it all. The whole setup is encased in a metal frame that includes lifting points that can be used to attach it to a crane for moving around. To confirm it all works, the team loaded it up with some protons (which are notably easier to produce). Two internal cranes in the facility, along with a heavy-duty four-wheeled cart, moved the container to a loading dock, where it was transferred to a truck and taken for a spin around the CERN campus at Meyrin. Based on the map included in the paper describing the work, it appears that the protons started out in France but briefly crossed the border into Switzerland. All told, they traveled just under four kilometers and reached speeds of over 40 km/hour. Hitting the road Overall, the hardware stayed cold, generally at a bit over five Kelvin. The exception was when the system was reconnected to the antimatter source hardware and the system reconnected to the electrical system at CERN. While those actions show up as temperature spikes, the superconducting magnets remained well under seven Kelvin. An accelerometer was in place to track the forces experienced by the hardware while the truck was moving. This showed that changes in the truck's speed produced turbulence in the liquid helium, making measurements of its presence unreliable. Levels had dropped from about 75 percent of maximum to 30 percent by the time the system was reconnected, suggesting that liquid helium presents the key limiting factor in shipping. Measurements made while the system was in transit suggest that the whole process occurred losslessly, meaning that not a single proton escaped during the entire transport. All that's missing now is another experiment at CERN that the antimatter can be delivered to. Presumably, the team is looking for lab space in a building with little in the way of stray electromagnetic fields. But the team has bigger goals in mind. There's a facility being built in Düsseldorf, Germany, for antiproton experiments, nearly 800 kilometers and eight hours away by road. If the delivery can be made successfully—and it appears we are just a liquid helium supply away from getting it to work—the new facility in Germany should allow measurements with a precision of over 100 times better than anything that has been achieved at CERN. Nature, 2025. DOI: 10.1038/s41586-025-08926-y  (About DOIs). John Timmer Senior Science Editor John Timmer Senior Science Editor John is Ars Technica's science editor. He has a Bachelor of Arts in Biochemistry from Columbia University, and a Ph.D. in Molecular and Cell Biology from the University of California, Berkeley. When physically separated from his keyboard, he tends to seek out a bicycle, or a scenic location for communing with his hiking boots. 14 Comments