shpresa
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Does anyone know why the resonant frequency of a grounded human is smaller when ungrounded?
Bobbywhy said:shpresa, Welcome to Physics Forums!
Will you please give more information? What is the driving frequency causing the human body to resonate? Can you give some example of your experiment? What is the source of your question?
I once consulted on a project to kill insects some engineers were working on. Their idea was to bombard flies with high power acoustic frequencies that would cause their bodies to resonate so strongly they would literally explode. Our experiments showed it did not matter if the flies were in flight or resting on a leafy surface. Their little bodies exploded when irradiated with our sound beam in either case. We may infer from this experiment that the resonant frequency of the human body remains the same, whether grounded or not.
Cheers,
Bobbywhy
Bobbywhy said:Our experiments showed it did not matter if the flies were in flight or resting on a leafy surface. Their little bodies exploded when irradiated with our sound beam in either case. We may infer from this experiment that the resonant frequency of the human body remains the same, whether grounded or not.
shpresa said:Yes I guess its about EM resonance since we learned this from Bioelectromagnetics course...
the_emi_guy said:You are not sure? Seems odd.
According to my handbook, the average man is 1.75 meters tall, and has a resonant frequency of 80MHz. This is close to, but not exactly the same as, what your formula predicts.