liquid nitrogen

[PBSouLjAh]

at our school...a science teacher does a lot of cool experiments with his students. He does things like.....putting strawberrys or marshmallows in a bowl....then pouring liquid nitrogen in the bowl...and you can hear the nitrogen freeze the strawberrys....sounds like a sizzle. he also freezes ping pong balls..then throws em out the window.....and they explode. its pretty cool. i wonder why the paintball industry doesnt use liquid nitrogen. you could definetely get more shots off....and its more clean than co2. maybe the phase change of liquid nitrogen to gaseous nitrogen is gonna screw up the consistancy.

[A damn fool]

then, the consistency wouldnt be any better then co2. We use nitrogen becasue it can be packed as a gas into a much smaller place then co2. Thats why its more efeective, its a gas. However, a liquid nitrogen would be like a co2 tank with about 400000 times as many shotts.

[elTwitcho]

Why is liquid nitrogen cold, because it absorbs heat as it changes from gas to liquid. Your tank regulator would shatter as it would freeze after a single shot and become nonfunctional. kinda like those ping pong balls you mentioned

[Richy_C]

and your orings would fry

[spacer709]

somehow i think orings would be the LEAST of your problems...

[Dman]

1. In order to keep the liquid N2 in that state in a tank it would have to be under tremendous pressure. I am not sure of what the details of that are, but I know it would be way more than 4500psi. That's hard enough to get. Otherwise you would have the keep the tank at -272 Celcius. the pressurized tank would be the same temp either way. If you think CO2 tanks are cold, think about your hand turning into that rose your teacher shattered.
2. Temperatures that cold would cause major problems with you gun. You would have to make guns out of ceramics to be able to take the temperature extremes.

Ask your teacher about it, I am sure that he can give you more details. I only remember this stuff from High school Chemistry class.....many moons ago.:)

[ptflyer]

FYI.....liquid N2 doesnot need to be under pressure to be kept a liquid.....it just changes to a gas as it warms up....ask that teacher....he is not taking that liquid N2 out of a high pressure tank.......he takes it out of some kind of thermos......

[Evilcrayonusa]

We don't use liquid nitrogen because a we would need amazing materials to build the guns and the tanks out of that stuffs about as cold as your gonna get were talking your steel guns would crack exceptionally easy due to the temprature change of gassing it up than and it would make the gun ice cold intantaniously untill your out of Nitro ie you couldent hold it w/o speachal gloves heh but i doo have to agree the shots yould be pullin would be some ware upwards of 200000 nice concept but would work w/o speacial gun