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SnakeDoctur t1_iudzsy2 wrote

Very dangerous if they happen to hit the resonating frequency of the structure


Stormtech5 t1_iue0v0m wrote

I had a teacher who used to work testing resonating frequencies on satellites going up on rockets. Didn't want a launch wasted because it busted sensitive communication equipment.


SnakeDoctur t1_iufhjor wrote

There's been a number of military reports throughout history of a battalion of soldiers marching across a bridge and causing it to buckle like leather. Myth busters did a great episode on it as well albeit on a much smaller scale