Re: On Arindam Banerjee's recoil-less rail gun and Newton's 3rd Law violations in electrodynamics

J. J. Lodder wrote:

Aether Regained <AetherRegaind@invalid.com> wrote:

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

Nichols' radiometer is a heat engine too.
Its heatsink is either the walls of the room,
or ultimately, if you go outside,
the cosmic background radiation,

Jan

The CBR is the radiation from all the stars and galaxies. Radiation provides no monentum for radiation has no mass. Momentum is mass multiplied by velocity. No mass, no momentum. But there us APPEARANCE of momentum with solar sails in sunlight.
bt