How a scientist taught himself to write cursive with his eyeballs

We're used to the idea of communicating with our eyes — but soon, we could be using just our eyes to write words, or to control machines. A French scientist accidentally figured out how to control his eye movement enough to be able to write on a computer screen — and in the process, may have revolutionized how we… » 7/27/12 8:00am 7/27/12 8:00am

Nanotubes Make Synthetic Skin Feel Your Pain

Carbon nanotubes can conduct sensations through artificial skin back to the brain, making prosthetic limbs feel like the real thing. A nanotube like this one, delicately balanced on top of gold filaments, is threaded through a rubbery polymer. This nanotube-infused polymer generates electricity in response to pressure… » 1/08/08 12:00pm 1/08/08 12:00pm