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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
Interesting evidence of an ancient Middle East Meteor Cataclysm...Jericho? Sodom?
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<blockquote data-quote="FrumiousBandersnatch" data-source="post: 76259331" data-attributes="member: 241055"><p>Tesla said a lot of things that he never demonstrated. It would, in principle, be possible to destroy buildings with high-intensity sound waves or ground vibration, but neither the necessary frequency or intensity could be achieved by marchers.</p><p></p><p>Bridges and walls are not alike in their susceptibility to resonance. Walls don't have free spans to resonate and any resonances are damped by their continuous contact with the ground. To get a bridge resonating by footfall requires direct impact with the structure. The effect of marching around <em>near</em> a wall will be damped out by the ground itself which doesn't resonate. Invoking a miracle would be less risible.</p></blockquote><p></p>
[QUOTE="FrumiousBandersnatch, post: 76259331, member: 241055"] Tesla said a lot of things that he never demonstrated. It would, in principle, be possible to destroy buildings with high-intensity sound waves or ground vibration, but neither the necessary frequency or intensity could be achieved by marchers. Bridges and walls are not alike in their susceptibility to resonance. Walls don't have free spans to resonate and any resonances are damped by their continuous contact with the ground. To get a bridge resonating by footfall requires direct impact with the structure. The effect of marching around [I]near[/I] a wall will be damped out by the ground itself which doesn't resonate. Invoking a miracle would be less risible. [/QUOTE]
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Interesting evidence of an ancient Middle East Meteor Cataclysm...Jericho? Sodom?
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