The Hypersonic Age is Near
Recent breakthroughs in scramjet engines could mean two-hour flights from New York to Tokyo. They could also mean missiles capable of striking any continent in a moment's notice. No wonder the race to develop them is as fierce as ever.
This could mean two-hour flights from New York to Sydney.
http://www.popsci.com/popsci/aviationsp ... drcrd.html
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