Frase di Simon Newcomb Frasi di Simon Newcomb
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07/05/2014 alle 11:28
Valutazione mediascadente1Curiosità 56
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  • Frase in inglese
    The demonstration that no possible combination of known substances, known forms of machinery, and known forms of force can be united in a practical machine by which man shall fly long distances through the air, seems to the writer as complete as possible for the demonstration of any physical fact to be. Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible.
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