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Compound Machines: Pulley (0:25)
Learn how pulling a rope that runs over a round pulley makes lifting easier.
Deadliest Catch: Crane Pots Hydraulics (1:23)
Northwestern Deck Boss Edgar Hansen explains how cranes, pots, and hydraulics work to keep a crab boat running.
Solar Balloons (2:43)
Watch this Reuters video showing how solar balloons could solve power needs for remote areas. Designed by the Technion Institute of Technology, solar balloons could provide power without taking up valuable farmland or living space.
Video Goggles (1:16)
Watch this Reuters video showing how Japanese researchers are always able to remember where they put their keys. The "key" is to wear a pair of video goggles that identifies and records everything you see for instant playback.
Factories on Your Desktop (1:46)
Watch this video about factories on your desktops called "fabbers" on HowStuffWorks. Researchers are developing high-tech desktop precision laser cutters, or fabbers, and envision them being next to everyone's computer at home one day. Learn how... More »


