News tagged with watts

What keeps the Earth cooking?

What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes ...

Jul 17, 2011 4.6 / 5 (24) 50 | with audio podcast

Laser Fusion and Exawatt Lasers

(PhysOrg.com) -- In the recent past, producing lasers with terawatt (a trillion watts) beams was impressive. Now petawatt (a thousand trillion watts, or 10^15 watts) lasers are the forefront of laser research. Some labs are ...

Oct 01, 2009 4 / 5 (17) 10

Free PC widgets save energy

I shaved 0.86 pounds of emissions from my carbon footprint and saved 0.646 kilowatt hours yesterday, and if the little widget on my PC can be believed, more than 22,000 people in 128 countries did roughly the same.

Sep 23, 2009 5 / 5 (3) 2