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"Alien" Exoskeleton for U.S. Army (1:08)
In the sci-fi classic "Alien," the heroine battles a nasty alien in a mechanical exoskeleton. Today's U.S. Army is testing out an eerily similar exoskeleton to help move heavy loads and prevent back strain and fatigue. You can even punch and fight... More »
Weaponology: Submarines 2 (4:12)
Submarines became almost unbeatable with the development of nuclear-powered propulsion systems.
MythBusters: Grenades and Guts (1:35)
Would throwing yourself on top of a live grenade, Hollywood style, really save the people around you? The MythBusters use a dummy and lots of explosives to find out.
MythBusters: Water Torture (2:52)
Can someone be tortured by water? Several of the crew from MythBusters would say, "absolutely."
Top Sniper: Spotter (2:07)
Learn the importance of not only the sniper, but the invaluable spotter on the battlefield.
