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Must-see video of world record sled going 633 mph!

This is one sled ride you don't want to be on. In New Mexico last month the Holloman Air Force Base broke a world record after blasting a rocket-powered magnetically-levitated sled at 633 miles per hour down a 2100 foot track. That's really fast!

“We have a magnetically-levitated sled, where we use a very cold liquid helium to essentially levitate the sled via superconducting magnetics,” Lt. Col. Shawn Morgenstern, the commander of the 846th Test Squadron, said in the video.

This wasn't the first test run the Air Force has conducted, but before this test the sled had only reached a mild 513 mph.

How is this sled able to go so fast? Thanks to magnetic levitation systems the vehicle is allowed to travel in a very low-friction environment, permitting incredibly fast speeds. Wow!

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Source: Fox News
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