Lemelson-MIT InvenTeams Odyssey

Photos from the Lemelson-MIT InvenTeams Odyssey, an annual program showcasing some of the coolest inventions you'll see anywhere (and they're only in high school)

Underground Locator and Communicator Device

A device for cavers and rescue operations built by the team from Huntsville (Ark.) High School

Driver Awake

A device that alerts drivers who fall asleep at the wheel, invented by the team from Eleanor Roosevelt High School in Greenbelt, Md.

Fire Fighting Grenade

Acton-Boxborough (Mass.) Regional High School students demonstrate their reusable â€fire fighting grenade.â€