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From: Aether Regained <AetherRegaind@invalid.com>
Newsgroups: sci.physics.relativity
Subject: Re: On Arindam Banerjee's recoil-less rail gun and Newton's 3rd Law
 violations in electrodynamics
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bertietaylor wrote:
>
>> Volney wrote:
>>
>> Even solar sails use that effect (momentum of sunlight).
>
> No that is a heat engine. Temperature differences on either side cause
> the motion. Radiant heat is em waves raising the temperature on one side,
> that facing the sun.
>

@bertietaylor a.k.a @ArindamBanerjee,

You are confusing the action of the Crookes' radiometer with Nichols'
radiometer.

https://en.wikipedia.org/wiki/Crookes_radiometer

Crookes' radiometer is a heat engine that uses a light source as the
source of (radiant) heat, and a working substance, air.

https://en.wikipedia.org/wiki/Nichols_radiometer

Nichols' radiometer measures radiation pressure caused by light
momentum. The concept of photons are not required to explain this
momentum, Maxwell's wave theory is sufficient.

https://en.wikipedia.org/wiki/Radiation_pressure