I was watching MythBusters this week, a show that tests the validity of myths and urban legends, and they were testing the myth of a helium-filled football. They had noted that a helium-filled football weighed less than an empty one and I got to thinking: What if you mill out a rail, and add fittings and a valve - a-la Classic RT, but sealed off, and pump it full of helium. It should weigh less , both due to the milling and the helium - as helium is less dense than air, hence it would increase the "bouyancy" of the rail in air. Anyone got any thoughts on this?
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The milling is probably the only place you would gain any real world difference in feeling. Flushing out the air with helium won't make much of a difference because of the amount of space involved. The milling would only amount to a few cubic inches of space for the helium.
How much of a difference did the helium make with the football? -
God I hope you're stoned or something...cause I'd be ashamed if I weren't and I were you.Originally posted by nyarlathotep
Helium weighs about 0.1785 g/L and air weighs about 1.62g/L which means that in order to lose 1.445 grams of weight from your rail you would have to replace approximately one LITER of volume with helium...which would be physically impossible.
Heliums density in a smaller unit of cubic centimeters is 0.0001787 g/cm3, one cubic centimeter might even be more than you could mill from a rail (im not sure on this), but even if you could mill that much out, even some of the most accurate scales wouldn't be able to notice the differnce between air and helium.
all i can say is wow...cause im completely destroyed and I still had the sense to do those calculations...oh, and god, you're an idiot...Comment
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He was just asking about an idea.Comment
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Dharma - a couple of percent at 13 psi.
Neppo - you're just jealous someone else thought of it first
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tae - thanks.
Drilling/milling out a compartment in a frame, and then filling it with pressurized helium should make the gun less 'dense' - not only would a portion of some part of the gun be missing, but it would also be filled with a substance less dense than the air that surrounds it.Comment
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Your best weight differences would be noticed if you just put the sealed space in the rail under a vacuum. However, any weight difference would be canceled out by the fittings required to seal the rail. You will be better off just milling as much extra material off the rail to begin with.
-MikeComment
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Hmm, how much does helium cost? If it isn't too expensive, you could make your marker run on helium and put your tank on gun. Fiber-wrapped HPA tanks are already light, and the helium would make it lighter.Comment
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Helium unfortuanly wont fire a paintball.Comment
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to get the paintball to fire even close to 300 fps you would need a much higher psi. I personally don't feel like paying as much for my tank as my gun. If you really want to make your gun feel lighter just go to a gym and do some curls......Comment
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i don't get it......why not just make the rail out of helium?
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they dont anno very welli don't get it......why not just make the rail out of helium?
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Helium isn't that well know for it durability or strength.Originally posted by Chris_automag_07i don't get it......why not just make the rail out of helium?
And hell while their designing that why dont they just make the whole gun out of helium. That would really lower your profile and reduce weight.Comment
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Why would helium not fire a paintball?
It's a gas under pressure & should behave like any other gas under pressure.
It's not the density of the gas that determines it's ability to propel a paintabll it's its pressure, or rather the difference in pressure between the gas used as a propellant & the outside (atmospheric) pressure.Comment
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who really cares?....is hpa not good enough? as long as the paint comes out. i think we are all set with hpa.Comment
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This is the workshop my good man, we are constantly trying to improve upon the norm. If we didn't we would still be beating eachother over the head with sticks, instead of Automags.
I want to hear more about making the solid helium rails!
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