2007-03-26 15:00:44 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Physics
like a cloud up in the sky. the white fluffy ones
2007-03-26 15:04:28 · update #1
Not really.
2007-03-26 15:02:50 · answer #1 · answered by Cuddly Lez 6 · 0⤊ 2⤋
On primary law of physics is, "Nature abhors a vacuum."
If you have a vacuum and a cloud next to it then you if you open that vacuum chamber the cloud will be sucked in, provided you have enough volume to hold that cloud. If you have a vacuum of 3 cubic feet then you can suck in 3 cubic feet of your cloud.
So why doesn't the atmosphere fly off into space. Well actually it does, but only a little. The Earth’s gravity is strong enough to hold 95% of the atmosphere in and natural processes fill the gap, and can do so for several thousand millions you years.
How do you suck in more of your cloud? That requires a pressure pump; a pump that can pull gas in and move it to a strong container that can hold the gas at pressure.
The problem is that it is very hard for our pumps to reach great pressures, and it is equally tough to build a container that can withstand those pressures.
Rockets like to use liquid oxygen to burn with their fuel because they can store more of a liquid than they can with a gas.
To increase the amount of gas that can be used for fuel like hydrogen and oxygen it has to be cooled to their freezing points. Normally we can't get a sample that cold so we have to use pumps to help us do it. We cool the chamber with the gas in it and then quickly expand it and cool it again. If you put the gas under a pressure and then expand that pressure it has to fill the vacuum (or lower pressure) you created.
This means the same gas sample has to lose energy to accomplish its expansion., so we can cool it to a much lower temperature. If we do this enough times then you can get the sample to liquefy. This is how we make liquid nitrogen, oxygen and hydrogen. Each gas has a lower freezing point.
2007-03-26 22:15:04 · answer #2 · answered by Dan S 7 · 1⤊ 1⤋
Sure. A cloud is air and vapor. Some of the vapor might pass right through the filter and come out the exhaust, but if your vacuum bag were large enough, you could do it.
2007-03-26 22:03:24 · answer #3 · answered by Intrepyd 5 · 1⤊ 0⤋
A very, very tiny cloud, yes.
Most clouds actually weight thousands, if not millions of pounds. You'd need a very large vacuum for those.
2007-03-26 22:03:25 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Make sure it's a wet/dry vaccuum. A typical cloud is made up like a fog so you'd be sucking in air full of moisture. Good luck. ;)
2007-03-26 22:05:21 · answer #5 · answered by Suse 4 · 0⤊ 0⤋
That would be a crime - clouds are so beautiful up there in the blue sky.
2007-03-26 22:03:14 · answer #6 · answered by ra63 6 · 0⤊ 0⤋
What kind of a cloud is it?
2007-03-26 22:02:57 · answer #7 · answered by Fish 2 · 0⤊ 0⤋
Well you might but then what?
2007-03-26 22:15:05 · answer #8 · answered by Anonymous · 0⤊ 1⤋