World's First Computer Is Finally Built

Charles Babbage's 1822 design for a mechanical "difference engine" was never actually constructed...until now.

Credit: The Next Step

Harnessing Wave Energy

Energy from ocean waves seems like the ultimate in renewable fuel, yet research lags behind studies ...

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Fido Finder - Using Satellites to Track Your Dog

GPS devices, worn on dogs' collars, report positions to the pets' ...
Star Trek's Warp Drive: Are We There Yet?

Marc Millis, former head of NASA's Breakthrough Propulsion Physics ...
How the Brain Changes as We Grow Up

Brains scans show how the brain's organization changes from childhood ...