Question:

Can you "crack" this one?

by  |  earlier

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What was the first man made inversion that could just go faster than the speed of sound?

There is a clue is in the question it's self and it dates back from the Roman era. Also, it is still around today.

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2 ANSWERS


  1. A whip?


  2. That's an old one, the WHIP!!! and not a walnut whip either!!!

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