Yell Phone: Using Speech to Recharge Portable Gadgets

Engineers in South Korea are working on a system that converts sound to energy, with one potential real-world application of the technology being cell phones that recharge themselves as people speak into them.

We won’t see a fully functioning solution like this in the near future, but the team demonstrated that “a prototype of the …

What Do Fireflies and Bill Gates Have in Common?

Speaking at TED last week, Bill Gates unveiled his vision for cleaner energy in the future and eliminating CO2 emissions by 2050 with his endorsement of a radically different type of nuclear reactor. He also noted the miracles that occur in nature by bringing out a jar of fireflies. It’s definitely worth the 30 minutes.