The reason you're probably not using a wireless charger right now is that most of your gadgets don't work with them. ElectroHub is a wireless charger that can work with absolutely anything, as long as it takes ordinary batteries.
Cow dung releases huge amounts of methane gas when it sits around, but few farms do anything to put that waste to use, other than using it as fertilizer. Now a huge plant is being built in China, that will use the waste from 60,000 cows to provide electricity to thousands of homes.
Everybody poops. Even astronauts. And when you live in a couple metal boxes 200 miles above the Earth, poop can be a real problem. The UN is launching a satellite full of excrement-eating bacteria that'll do some pooping of their own, powering a fuel cell as they go.
Piezoelectric generators take motion and turn it into electricity. They've been used to convert muscle movement into energy to run medical implants, but it's been hard to get them to scale up enough to power stuff that's bigger and more fun. Researchers at Georgia Tech have been able to create a tiny piezoelectric nanogenerator that's capable of powering an LED and a liquid crystal display, and your iPod is going to be next.
Jellyfish populations are growing all over the world, so a group of Swedish scientists is looking at ways to harness the power that makes jellyfish glow in various colors.
A new type of fuel cell points to a future where gadgets could be powered by the same fuel as 10 year old kids - sugar!
We love shiny portable gadgets, but most aren't really wireless. At some point most every one of them needs to plug into a power outlet. Now that an industry group has finalized a standard for wireless power, called Qi, that could be changing.
Knowledge is power, or so they say. So if you're trying to take control over your energy usage, you've gotta know just how and where you're using it. That's the idea behind the new Belkin Conserve Insight, a little gadget that you plug any device into in order to really track what it's costing.
This concept design, dubbed the Hungry Battery, is a pretty standard-looking set of batteries when they're all charged up. But unlike normal batteries, which let you know that they're dead by no longer working, these guys actually get thinner as they lose juice.
Imagine perpetual power to your cellphone, MP3 player, digital camera, pocket camcorder or other low-power portable. No more battery recharging, never again having to plug your iPhone, iPod, Flip or whatever into an AC jack. A new technology being developed...