Bendy batteries made with nanotube paper could power flexible electronic displays. Researchers at in Troy, New York, grew carbon nanotubes on silicon and coated them in dissolved cellulose. Later they peeled off the silicon, creating a piece of paper with nanotubes on one side to act as an electrode, and used the paper to make lithium-ion batteries that work even when bent.
If you鈥檙e bored with breaststroke try the , a carbon-fibre 鈥渢ail鈥� inspired by seals and dolphins. Strapped to a swimmer鈥檚 shins, it helps them maintain a speed of about 4 kilometres per hour. Its inventors at the US Defense Advanced Research Projects Agency reckon the super-flipper, showcased at the DARPATech 2007 symposium in Anaheim, California, could help military divers zip through the water.
