Because hydrogen fuel infrastructure is more or less non-existent, Hyundai's rollout will be small. The car will be available at select dealers in Southern California, all within range of the company's sources of hydrogen, which include a nearby waste water treatment plant. Local drivers will be able to "gas" up for free at any of seven distribution stations...
The world's first-ever smartshoe is called Le Chal, which means "let's go" in Hindi. Designed by Anirudh Sharma, who works at the MIT Media Lab, and Krispian Lawrence, these shoes work as haptic navigation devices that connect to your smartphone.
The basic idea is pretty simple. You simply tell your phone where to go using the app's voice recognition software, and the app uses GPS to plot the course from your current location. Once you're on your way, the shoes vibrate when it's time to turn—on the left side for a left turn and on the right for a right turn. The vibrations become more intense as you get closer to your destination.
Alex Scott, a senior editor at C&EN, notes that spider silk's impressive strength has been studied for years, and scientists have been trying to make a synthetic version of the super-strong protein in the lab.
Think about that for a moment: a flashlight that shines for as long as you hold onto it. No more scrambling for and chucking away AA batteries. It could have an immediate impact on more than 1.2 billion people -- one-fifth of the world's population -- who, according to the World Bank, lack regular access to electricity.
Stunningly, no one on record has thought to use thermoelectric technology to power a flashlight. But for Ann, peltier tiles, which produce an electrical current when opposite sides are heated and cooled at the same time, were a convenient solution to a friend's study problem.