Fascinating. Did you know that if you hold down the sustain pedal on a piano and sing a note, the piano string of that note will "play" off the vibrations of your voice?
If you can sing very loudly at the natural frequency of a glass (the sound it makes when it is tapped or caused to vibrate) you can cause the glass to shatter, we have seen this alluded to, but did you know, that in 1940 the Tacoma Bridge in the USA collapsed because the wind made it vibrate at its natural tendency? Soldiers do not march in step across bridges, in case their footsteps make the bridge vibrate at it's natural frequency.
This immediately brought Jericho to mind!!! Wild stuff.
1 comment:
WOW! And I don't know if I would have thought of the walls of Jericho, but, how incredible.
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