kdot2
kdot2
20-11-2015
History
contestada
what was the challenge in building an airplane
Respuesta :
HistoryGuy
HistoryGuy
22-11-2015
One of the most significant challenges is building an airplane had to do with "propulsion", since the technology that allowed motors to have enough energy to lift an airplane into the sky with a passenger wasn't available for most of history.
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