Harnessing everyday motion to power mobile devices

Imagine powering your cell phone by simply walking around your office or rubbing it with the palm of your hand. Rather than plugging it into the wall, you become the power source. Researchers at the 247th National Meeting & Exposition of the American Chemical Society (ACS), the world's largest scientific society, presented these commercial possibilities and a unique vision for green energy.

Extreme power of black hole revealed

Astronomers have used NASA's Chandra X-ray Observatory and a suite of other telescopes to reveal one of the most powerful black holes known. The black hole has created enormous structures in the hot gas surrounding it and prevented trillions of stars from forming.

What is the difference between power and energy?

Let’s finish 2013 this way: With a vow to spread the word about the difference between watts and watt-hours, between power and energy.

32 acres to power 1,000 homes?

In a high-profile critique of utility-scale renewable energy, Robert Bryce wrote in the New York Times in 2011 that energy sources like sunlight and wind “(require) vast amounts of natural resources – most notably, land.”

Iran hacks US utilities

In an effort to prove that it can be almost as menacing as China, Iran has apparently hacked a bunch of US energy companies. 

US power grid vulnerable to attack

It seems that the US government’s belief in the efficiency of its private sector to run its power infrastructure is proving completely bogus.

This Toyota electric charging station generates its own power

Toyota has been on a bit of a tear lately when it comes to examining the intersection of transportation and sustainability. It, for example, showcased at the recent Shanghai Motor Show the FT-HT hybrid concept and also unveiled the all-electric Me.We vehicle as a study in ecological responsibility.

Converter solar backpack delivers big on power

I’ve always loved Voltaic System’s habit of slapping a solar panel on just about anything one could carry around during the day. Backpacks, tablet covers, or laptop bags all become doubly useful once they’re capable of powering the gadgets within.

Generating electricity from the sea

Waves may not be that predictable, even though technology and forecasting has improved (from World War II, when wave forecasting began in earnest, thanks to the requirements of the D-Day landing, up through the sophisticated models used by sports organizations like Surfline today), but the tides are thoroughly predictable.

The advent of mobile solar power

In the aftermath of Sandy, mobile solar power – both on a fairly big scale and the cell-phone charging level – came to the rescue of some powerless residents.

Gun Control: How technology could provide the answer neither side will see

The pro-gun control and pro-firearms folks are having a bit Scrooge post-Christmas as a New York newspaper (Journal News) posted an interactive map highlighting licensed gun owners, including their names.  

Los Alamos tests new spaceship power system

Researchers at the Los Alamos National Laboratory have developed a  simple, robust fission reactor prototype that could be used as a power system for space travel.

How your wallpaper could power your PC

University of Oxford researchers say it should soon be possible to do away with the tangle of cables most of us are afflicted with, thanks to a new class of metamaterials.

How offshore wind can power New York and Boston


There is one thing most people probably don't know about offshore wind.

Wind could feed world's total energy demand

There's enough power available in winds to meet the whole of the world's energy demand, says a Carnegie Institution for Science report.

Robot-run solar tracking could tilt power up, costs down


Everyone knows that big solar arrays that can track the sun will deliver more power than fixed-tilt systems.

On ARM versus x86

It seems like everyone in the industry wants to compare ARM (and other variants of RISC processors) to x86 (and other variants of CISC processors).

100W of power over USB!?!



The USB 3 Promoter group recently finalized a fresh spec for USB power delivery of up to 100W of juice.

Record-breaking laser pulse advances hopes of fusion energy

Scientists have fired off the most powerful ever laser pulse, hitting 500 trillion watts.

Maglev lightbulb floats in mid-air

An Australian student has created a levitating lightbulb that powers itself wirelessly.