Watch a Heart's Natural Motion Power Medical Implants

Devices such as as pacemakers and cochlear implants have become so common as seamless extensions of human beings that it's easy to imagine a world without clear distinctions between man and machine. And now, one of the major roadblocks to that bionic future may have just been knocked aside. Grandpa—say goodbye to… » 1/20/14 5:20pm 1/20/14 5:20pm

Pressure-Powered Portable Devices? Preposterous! Or Perhaps Not...

The best battery is one that lasts forever. The runner-up is one that charges because you're using the device it powers. And Australian researches are trying to make the latter a more mainstream reality. » 6/21/11 8:40pm 6/21/11 8:40pm