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MythBusters: Let's Talk Buoyancy (3:12)
The MythBusters test buoyancy and explain the science behind why boats float.
How Diesel Locomotives Work (1:15)
Trains have been around for hundreds of years, but now they use a new hybrid technology. See how diesel locomotives work in this HowStuffWorks video.
How Drawbridges Work (1:24)
A drawbridge is a bridge over a body of water that opens up to allow boats and ships to pass through. Watch this video from HowStuffWorks to learn how it works.
MythBusters: Big Rig Myths (4:24)
Is it possible for a bicycle to cruise in the wake of a big rig? The MythBusters get a bike and a semi and find out.
Build It Bigger: Kinetic Madness (1:57)
Roller coasters use physics to create breathtaking and terrifying thrills in amusement parks across the world. Watch a video from the Discovery Channel.

