This photo of Mount Redoubt, caught in mid-eruption, was taken from a height of 423 miles, on March 30, 2009 as the GeoEye-1 satellite moved from north to south over Alaska at a speed of 4 miles per second. Since the amount of area is so large, the ground resolution of this image is 2 meters.
Everybody remember the promise of the paperless office? Anyone in front of a monitor can testify to just the opposite having taken hold. The ubiquity of the personal computer was supposed to free us from the chaotic sea of paperwork washing over our desks every day, and yet all it seems to have done is open the floodgates further.
The ReCharge, Volvo’s concept plug-in hybrid, could squeeze 160 miles from a gallon of gas by tossing out the power-wasting transmission. It packs a small electric motor inside each wheel, so that no power is lost in the drivetrain. Here’s a look at the next generation of fuel-efficiency
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Science is reinventing play, from extreme sports to gamification to ridiculous roller coasters to the playgrounds of tomorrow, and this issue is chock full of fun. Also, on a less fun note: Did global warming destroy my hometown?