Boring Company tunnel prototype works like a side-friction roller coaster

Posted Sunday, January 6, 2019 5:18 PM | Contributed by kpjb

The wooden Leap-the-Dips ride is the oldest roller coaster still running in the United States. It's known as a side-friction roller coaster, a type so outmoded that only a handful of vintage amusement parks worldwide still have one. Some roller coaster fans were surprised to see the same set-up used in the futuristic Loop test tunnel unveiled Dec. 18 by Boring Company founder Elon Musk.

Read more and see video from NBC News.

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