electricity

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.


New Wireless Power Setup 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 4.5m away. And it works pretty damn well too.


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.


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 tantalising promise.


Why Is My Laptop On?

Why is my laptop on? To answer this question sufficiently, I found a four-year-old boy, and now every time I think I have the answer to the question, he’ll ask “Why?” — because that’s what four-year-olds do — and that will force us to get to the real answer. We’ll call him George. Everyone say hi.


Listen (And Watch) An Arc Of Electricity Play Music

Electricity is just great. From powering your toaster to frying Allied tanks at 100 yards, the uses for the humble electron are countless. One of those includes transforming digital data into music… but not through regular speakers. No, we’re just going to use electricity itself — raw and unshielded — to bust out some phat tunes.


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.


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.


The Cartoonist Of The Future's Dynamo Drawing Machines

The cartoonist of the future wouldn’t have to lift a finger, thanks to tomorrow’s wonderful machines. At least that was the idea behind this 1923 cartoon by H.T. Webster.


Pomegranate-Inspired Batteries Hold 10x The Juice

A team of Stanford scientists recently made a breakthrough. After years of trying to create a new generation of lithium-ion batteries that use energy-efficient silicon to hold a charge, they found the secret to the winning design in an unlikely place: pomegranates.