Home Forums Hunting & Shooting Ask The Gunwriters Bullet accelerating beyond muzzle?

Long ago and far away in a high school physics class it was said that water that had been boiled would freeze faster than room temperature or cold water because the boiling releases some of the dissolved gasses in the water.

I always thought you had to apply force to something to get it to accellerate--once bullet leaves barrel the only forces acting on it are gravity and air resistance--neither of which will cause acceleration.

I have read that some of the experiments that have allowed hot water to freeze faster showed a dependence on surface area and an insulating container. That way there was minimal heat loss through the container and almost all lost through the water surface. In that case the hot water froze faster. Vapor pressure induced evaporation made the difference (smaller volume left to freeze in the hot container) once temperatures were the same between the two containers. This phenomenon is not at all common, very specific to the conditions, and seldomly observed.

I've not done that one myself. My thermodynamics investigations have slowed since tossing a coffee cup of boiling water into the air.

Kennyd - you can see the cuppa boiling water HERE.