Google Reader
(103): "Hello, Earth! Can you believe that this photo was taken by a man who attached a digital camera to a balloon? Madness.
There’s actually not too much involved here. You take a helium-filled, high-altitude balloon, strap a digital camera to it, and off you go. The camera goes up (that’s 22 miles above the surface of the planet), takes a photo every five minutes, then it comes floating down to Earth on a parachute. A simple GPS, not too different from the one in your car right now, gives the location of the camera when it comes back down."
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