Science Buzz The hypersonic A2 jet could take passengers at speeds up to 3,900 miles per hour. That’s Mach 5 for those keeping score at home. Other impressive features: It runs on liquid hydrogen, it looks cool, the guy in charge of the project is named Mr. Bond. Downside: It won’t be ready for the next 15-25 years.

BuzzFeed
about 4 years ago

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