[lefty-lie-spy]

Of course. You ask this seriously? C’mon FRiend!

[jimmyray]

I know that. I was replying to Sontag’s post above to a YouTube link containing the half-baked idea that “Thrust not possible in a vacuum:”

[jimmyray]

The intention being to gain a recognizence that for every action there’s an equal and opposite reaction. The ejection of the bullet from the barrel of the gun cause an equal and opposite reaction on the mass of the gun self. Thus, ejection of gas from a container causes an opposite reaction on the container, vacuum or not, because gas has a mass.