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How about can you move a mirror on the floor with the photons emitted
from your torchlight? Let's not ignore friction which exists in the
real world.
Radiometer is not massive too. :-)
Quoting Bernard Cleyet <bernardcleyet@redshift.com>:
Now I'm puzzled.
Photons have momentum, so I'd think the mirror would absorb some of
the momentum and result in a frequency shift on the photon. Not
measurable because of the disparity in momenta. OTOH, how about the
radiometer? The "real" one, not the fake ones that depend on a
little gas in the bulb.
bc
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