Jim Kelley wrote:


K7ITM wrote:

I'm left with the impression that JS, at least, hasn't a clue about
how those little radiometers actually work. (Or perhaps he just
thinks he's having fun with a little trolling.)

Both are correct, IMO.

ac6xg


Actually, you are partially correct. In the cookes radiometer, the
motion cannot be ALL attributed to the radiation pressure. A nichols
radiometer can accurately measure this radiation pressure ... the effect
(photons having mass) is real ...

Regards,
JS