National Engineers Week is an annual event that aims to energize youngsters about engineering. Leslie Collins, executive director of the National Engineers Week Foundation, explains how "Introduce a Girl to Engineering Day" gets girls fired up about engineering careers.
History credits Alexander Graham Bell with the invention of the telephone, but inventor Elisha Gray filed papers with the patent office describing a similar device on the same day. Who should get the credit? Seth Shulman, author of The Telephone Gambit, has the 411.
Researchers reporting in the journal Science have created tiny nanowires and transistors at a scale much smaller than today's silicon-based versions. Even better, these tiny electrical components can be erased and rewritten. Author Jeremy Levy explains the technique.
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Last week, a defunct Russian satellite and a U.S. communications satellite collided in space, sending dangerous shards of debris into orbit. Mark Matney, an orbital debris scientist at Johnson Space Center, explains the hazards of space junk and what can be done to clean it up.
Forget the old red and blue glasses: 3-D has been upgraded. The inventor of modern 3-D explains how the technology has evolved and where it's headed. Director Henry Selick talks about the art of animation and how he used 3-D to make his movie Coraline jump off the screen.