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How Roller Coasters Work (1:25)
Roller coasters don't have engines, accelerators or brakes, So what makes roller coaster cars speed up, slow down and loop upside down? Get the inside track on the quintessential thrill ride.
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.
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.
Steepest Wooden Roller Coaster in the World (1:15)
Watch this Reuters video to see the T-Express roller coaster ride at the Everland Park amusement park in South Korea. The T-Express is a wooden roller coaster with the steepest drop in the world.


