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Авиация и космонавтика
Sabre engines for commercial air travel can go from zero to five times the speed of sound, and up to 25 times the speed of sound for space travel.
Experts believe hypersonic air travel could enable people to one day journey anywhere in the world within four hours. At Reaction Engines, based in Oxfordshire, they think this could be a reality within 10 to 15 years.
Говорят, будто NASA's Next-Gen ISS Ship Is a Decades-Old Soviet Project
Experts believe hypersonic air travel could enable people to one day journey anywhere in the world within four hours. At Reaction Engines, based in Oxfordshire, they think this could be a reality within 10 to 15 years.
Говорят, будто NASA's Next-Gen ISS Ship Is a Decades-Old Soviet Project
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"Говорят, будто NASA's Next-Gen ISS Ship Is a Decades-Old Soviet Project"
Как то сомнительно.
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(Anonymous) 2016-01-26 09:15 pm (UTC)(link)