I wonder if the Wright Brothers ever imagined that less than 100 years after their first manned flight, we'd have already taken air travel for granted. And we do, don't we? Thousands of these "crazy flying machines" take off and land every single day. And yet, at one point, the idea was as crazy as could be. In fact, in 1902 (just ONE year before the Wright Brothers' great success), Lord Kelvin -- the dude who determined the correct value of absolute zero as approximately -273.15 Celsius -- said, “No aeroplane will ever be practically successful.” Back in the late 1800s, the idea of Orville …
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