New Wireless Power Set Up Charges 40 Smartphones from Across the Room

Wouldn't it be wonderful if you never had to plug in your phone? Well, a team of Korean scientists say that they're one step closer to making that fantasy a reality with new wireless power transfer technology that works from over 15 feet away. And it works pretty damn well, too. » 4/21/14 1:20pm Monday 1:20pm

Scientists Figured Out a Way to Help Power Homes with Toilet Flushes

A team of researchers in South Korea have a pretty exciting new idea for hydroelectricity. They figured out a way to turn the mechanical energy from flowing water into a sustainable energy source. In other words, your toilet flushes could help power your home. » 4/18/14 6:40pm Friday 6:40pm

How San Francisco Sacrificed a Valley in Yosemite for Water and Power

The electricity that powers San Francisco's streetlights, schools, and international airport begins as a torrent of water inside—of all places—the supposed natural sanctuary that is Yosemite National Park. A century ago, a pristine valley was sacrificed so that San Francisco could continue to exist. » 4/16/14 5:20pm 4/16/14 5:20pm

Pouring Saltwater Over Graphene Generates Electricity

A team of Chinese scientists did an impossible-sounding thing. They created electricity simply by dragging a droplet of saltwater across a layer of graphene. No big fires, no greenhouse gases, no fuss. They created energy with just a miracle material and one of the most plentiful substances on Earth. » 4/15/14 11:15am 4/15/14 11:15am

The Cool Promise of Machines That Run on Body Heat

The human body at rest radiates 100 watts of heat—heat that does nothing other than make crowded rooms stuffy. But body heat can be converted to electricity, and new technology is always improving the process. With the rise of wearables, the body heat-powered device becomes an ever more tantalizing promise. » 4/14/14 1:00pm 4/14/14 1:00pm

Moss-Covered Table Uses Photosynthesis To Power an FM Radio

As an electricity source, what could be greener than plants? That's the idea behind this rig, the world's first system that powers an FM radio using nothing more than the photosynthetic powers of moss. And creators Fabienne Felder and Dr. Paolo Bombelli are just getting started. » 3/12/14 3:20pm 3/12/14 3:20pm

Scientists Can Now Herd Cells Like Cattle Using Electrical Fields

We've known that flesh wounds create disturbances in the skin's bioelectric field since Emil du Bois-Reymond first placed an injured hand in a galvanometer in 1843. Thanks to a new discovery from a team at the University of Berkeley, we might soon be able to harness those currents to heal ourselves with electricity. » 3/12/14 2:20pm 3/12/14 2:20pm

New Interactive Map Explores State of U.S. Solar Power

The Center for Land Use Interpretation, in Culver City, Los Angeles, opened a new exhibition on Friday exploring the contemporary state of solar power in the United States. The show includes extensive photographs of all existing solar power plants in the U.S. southwest, many of which were taken "from the air, using… » 3/10/14 2:20pm 3/10/14 2:20pm

Nuclear Fusion Just Got More Energy Out of Its Fuel Than It Put Into It

It's one of science's ultimate goals, and perhaps the only thing that could prevent humanity's ultimate depletion of the Earth's resources — the ability to create more energy than is used to make it. Now, a new nuclear breakthrough has brought that feat even closer to becoming a reality. » 2/13/14 8:00am 2/13/14 8:00am

Could Terrorists Cause a National Blackout By Attacking Our Power Grid?

Last April, an unknown number of gunmen, armed with what were likely AK-47s, crept through the dark near San Jose. Their target? A power station that provides electricity to Silicon Valley. Phones lines were cut from a manhole and more than 100 rounds were fired, knocking out 17 transformers. » 2/05/14 4:00pm 2/05/14 4:00pm

How LED Streetlights Will Change Cinema (And Make Cities Look Awesome)

The decision by the city of Los Angeles last year to replace its high-pressure sodium streetlights—known for their distinctive yellow hue—with new, blue-tinted LEDs might have a profound effect on at least one local industry. All of those LEDs, with their new urban color scheme, will dramatically change how the city… » 2/03/14 12:00pm 2/03/14 12:00pm

Wastewater from Cheese is Generating Electricity in Wisconsin

As the country's largest producer of cheese, Wisconsin is also the country's largest producer of cheese waste. But why think of that as a bad thing? In the hands of some enterprising Wisconsinites, what was once wastewater is now electricity. This is, after all, the same state that's using salty cheese brine to de-ice… » 1/30/14 10:00am 1/30/14 10:00am