SpudFiles

What is the whitish fog that comes out when you shoot a pneumatic?

The white fog is a water vapor cloud that has condensed in the compressed air.

actually its condensed fylotheradoczie dyethylebleblemene. Its extremely Toxic, makes global warming and emits harmful radiation. Watch out man!

pizlo wrote:actually its condensed fylotheradoczie dyethylebleblemene. Its extremely Toxic, makes global warming and emits harmful radiation. Watch out man!

haha, hilarious, i like your sense of humor

Pizlo, I believed you until the word "dyethylebleblemene". Nice.

So on a humid day it will be really dense?

I believe so..

(p.s. - title = whire fog?)

Woops. Thanks.
(Is this message long enough?)

Coodude26 wrote:(Is this message long enough?)

(for future reference), if your message isn't long enough (or if your like me and can predict whether it will be long enough or not), simply hold down the space bar for a couple seconds after you type your message to fill up a few extra character spaces.

Don't make a habit of it just to get extra spudbux

actually its condensed fylotheradoczie dyethylebleblemene. Its extremely Toxic, makes global warming and emits harmful radiation. Watch out man!

Thats pretty funny it might go in my sig.

When the compressed gas acts out force on the projectile, the projectile gains kinetic energy, and the air loses this energy, but in a thermal way.
When the air loses some of the thermal energy, it becomes cold.
And when air gets cold, the water in it condenses.

You are actually making clouds

psycix wrote:You are actually making clouds

That's going to be the next United Nations aid program then, "Spudguns for Africa"

Coodude26 wrote:What is the whitish fog that comes out when you shoot a pneumatic?

Dunno about you, but I get an eight foot long cloud of thick smog, which is seemingly what happens when you rapidly decompress 40 cubic inches of air at over 360 psi.
Can't wait to see what happens when I finally get to 500 psi.

And it's always more fun to add a useless message on the end of a post if it's too short than add a run of spaces.

I mean, by the time you realise I have nothing useful to say here, it's too late.

Dunno about you, but I get an eight foot long cloud of thick smog, which is seemingly what happens when you rapidly decompress 40 cubic inches of air at over 360 psi.
Can't wait to see what happens when I finally get to 500 psi.

The muzzle blasts from the SCTBDC at 500 psi with a 3" barrel were quite impressive to see as well.

When gases expand they cool off. If they cool off enough the moisture in the gases will condense and form a cloud. It doesn't really matter much that energy (heat) was transfered to the ammo, even a dry-fired gun will give a cloud since all the energy in the compressed gases gets transfered someplace else.

The biggest drop in pressure comes just after the ammo exits the barrel. GasEq says that the decompression of 120 PSIG air that started at 80F to zero PSIG gives air at -180F. That's pretty cold.

The cloud can also be from the cold blast of air from the muzzle cooling off the air outside the gun, causing the moisture outside the gun to condense.