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How Fast Is Mach 1? (And Can You Actually Feel It?)
When legendary pilot Chuck Yeager broke the sound barrier and flew the Bell X-1 past Mach 1 in 1947, it was the greatest aviation milestone ever achieved at that time. These days, however, reaching ...
Why it matters: Supersonic flight has existed for nearly 80 years, but remains banned over land due to the deafening sonic booms produced when aircraft exceed Mach 1 (767 mph). NASA and Lockheed ...
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