Underwater river in Mexico - Photographer Anatoly Beloshchin describes: "We are 30 meters deep, fresh water, then 60 meters deep – salty water and under me I see a river, island and fallen leaves. Actually, the river, which you can see, is a layer of hydrogen sulphide." The pictures are wonderfully freaky.
Ultra-thin Silk-Based Electronics Make Better Brain Implants - Engineers have now designed silk-based electronics that stick to the surface of the brain. Electrode arrays are printed onto silk films that disintegrate after they are placed on the brain’s surface and flushed with saline. They’re just 2.5 microns thick, so thin that they need to rest on a platform so they don’t fall apart during fabrication or implantation. After the silk film dissolves, the array wraps around the curves on the brain. This will significantly improve recording by conforming the electrode array to the surface of the brain.