Researchers at the National University of Singapore have made some 3D printed "photonic skin" that glows on its own. No batteries or wires needed, which is... cool, I guess? It's designed with something called auxetic properties, meaning it expands when stretched. Sounds fancy, but honestly, not sure how useful it really is for underwater communication. Just another tech thing that might or might not change anything. #3DPrinting #PhotonicSkin #UnderwaterCommunication #Technology #Innovation