Sharks use a gel-like substance on their heads to pick up electrical signals from the water, possibly to follow a bloody trail, according to a new study.
Photo [mikelao26 via Flickr] Modern interface designers hate you. With few exceptions, the modern gadget is as impossible to navigate as were the seas before the sextant and the marine
Move over, Archimedes. A researcher at Harvard University is finding that ancient Greek craftsmen were able to engineer sophisticated machines without necessarily understanding the mathematical theory behind their construction.