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On 5 Sep, 04:33, Denny wrote:
On the other hand, the absence of porous plates in operating radiometers tends to cast some doubt on your claim that the plates must be porous. Not "my claim," my report. The claim they must be porous arrives through the math necessary to balance the kinetic forces. Again, which radiometer? If you are arguing a "perfect" vacuum, then like a free lunch, I would agree there's no such thing. The Crookes radiometer requires a partial atmosphere to work, other radiometers work quite fine with much less. Depends entirely on what one intends to measure. Despite the photon torpedoes fired at me, I have not seen a convincing physics experiment that deflates my previous arguement... Where the F=MA arguement fails in a radiometer is that the photons impact both sides of the paddles leaving a zero net force for rotation... The fact that a Crookes Radiometer requires an atmosphere is proof of its mode of operation. The fact that it has to be a partial vacuum further proves how it operates (more air density means too much air drag to allow rotation by the weak local differential pressure across the paddle)... Those who reject local differential pressure changes due to local heating by claiming the pressure in the bulb is static ignore the factor of time in molecular exchange of thermal energy gains... Carrying their argument to the logical end means sun heating cannot cause the winds to ever blow across the ground because the net air pressure of Terra is static... denny It's 10PM somewhere, have you hugged your radio today? Perhaps people should take look at other things that creat radiation! For instance the explosion from a energy container such as a transformer feeding a spark plug. The frequency band is widespread leaving time varient current, capacitance and inductance and neglecting resonant lengths. Can a capacitance store a particle or can it blow away a particle formed on its own material?Time varient obviously dependes on the size of the capacitor therefore the time current is applied to the capacitor is irrelevent. I have left off references to icecream, snorkels e.t.c. even tho apparently they are necessary. Art |
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