Published: December 21, 2018
How highwire acrobats inspired George Nissen to design the trampoline as we now know it; loved by kids, gymnasts — even astronauts and the military.
from ABC News https://ab.co/2AcfSZg
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The up-and-down history of the trampoline
from ABC News https://ab.co/2AcfSZg
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