Live
Spoken Documents
Better voice recognition systems could make it easier to search spoken documents.
Popping Ears
Why do your ears pop during altitude changes? (Can't keep up with changing air pressure.)
Video Tampering
A new system to detect whether digital video has been altered
Fish Sounds
Testing underwater sounds on fish to lure them away from hydroelectric dams
Voice Recognition
A demonstration of a security system that uses your voice to verify you.
Morphing Planes
NASA's Morphing Project is working on planes that can adapt to changing flight conditions.
Biosphere 2
Biosphere 2 is doing experiments on how rising carbon dioxide levels affect pollution.
Roadside Paleontology
A site just off a Denver highway is yielding fossilized leaves from 64 million years ago.