Fast and loud—how to create sonic booms and curious clouds

Growing up beneath the Concorde flight path, I learned early on that if you heard its characteristic roar overhead you had to look far towards the horizon to see it. If you were lucky, you would see Concorde first. You could ...

Google exec makes record skydive from edge of space

A Google executive set a new record Friday by jumping successfully from near the top of the stratosphere—some 135,000 feet, or 41,000 meters high, his project website said.

New coating could enable major boost in solar-cell efficiency

Throughout decades of research on solar cells, one formula has been considered an absolute limit to the efficiency of such devices in converting sunlight into electricity: Called the Shockley-Queisser efficiency limit, it ...

Daredevil's sky jump provides global moment of awe

(AP)—Felix Baumgartner stood poised in the open hatch of a capsule suspended above Earth, wondering if he would make it back alive. Twenty four miles (38 kilometers) below him, millions of people were watching on the Internet ...

Austrian skydiver reached Mach 1.24: official (Update 2)

Austrian daredevil Felix Baumgartner celebrated his unprecedented feat Monday after becoming the first man to break the sound barrier in a record-shattering, death-defying freefall jump from the edge of space.

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