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He whined that I had done it "wrong"


stating facts is not whinning , bryan.
you were wrong so I said you were wrong.

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Doesn't work that way - material thrown within the ship will encounter resistance with the air, hull, etc. This will generate a force equal to the force of the propellant, thus neutralizing the thrust of the propellant. Its the ol' opposite and equal reaction thingie - the movement of the propellant will "push" on the ship, but the interaction of the propellant with the ship will push back equally. Net effect - zero thrust.


your still wrong.

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the magnitude of the force produced by the tank is irrelevant. What is relevant is the momentum produced will remain zero so long as that tank stays in a sealed pipe.
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3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.