okay, this is some blue-sky mothering, but how would you liquefy hydrogen, assuming you already have a source of hydrogen gas
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It's Like I've always said, it's amazing what an agnostic can't do if he dosent know whether he believes in anything or not
Monty Python's Flying Circus
Dan in Harrisburg, NC -
You cool it down and squeeze it. Hydrogen/Nitrogen/Oxygen/etc all are kept under pressure in liquid state and are cold.David
The chief cause of failure in this life is giving up what you want most for what you want at the moment. -
Per Wiki:
Liquid hydrogen is the liquid state of the element hydrogen. It is a common liquid rocket fuel for rocket applications. In the aerospace industry, its name is often abbreviated to LH2 or LH2. Hydrogen is found naturally in the molecular H2 form, hence the H2 part of the name.
To exist as a liquid, H2 must be pressurized and cooled to a very low temperature, 20.27 K (−423.17 °F/−252.87°C).[1] One common method of obtaining liquid hydrogen involves a compressor resembling a jet engine in both appearance and principle. Liquid hydrogen is typically used as a practical form of storing hydrogen. As in any gas, storing it as liquid takes less space than storing it as a gas at normal temperature and pressure. Once liquified it can be maintained as a liquid in pressurized and thermally insulated containers.
Hmm. -423.17F? I could do -423.00 but that extra .17... that's tough!Click. . . Hey, turn the lights back on! I'm still down here!
http://www.teraflax.comComment
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Mix it with oxygen. That will give you a liquid.
Seriously though, I saw a program on the discovery channel (I think) where they talked about the quest to reach absolute zero (or at least get close). There were using liquid gasses to reach these low temps. First, they used liq. oxygen to get liquid helium, then used liq. helium to make liq. hydrogen. This was all done using high amounts of pressure. People were maimed and died in the process from exploding contraptions. Anyway, it didn't sound like something I'd try to do at home.- Dennis
"If your mind goes blank, don't forget to turn off the sound." --Red Green
and yes, it's a potato.Comment
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Put it under pressure. You know, tell it that it has a coupon for $1000 worth of free woodworking tools and make it choose something in only 10 mins!!!
Seriously though why do you want to know is this a strange science project or have you found a WW application for liquid hydrogen?
JJon
Phoenix AZ - It's a dry heat
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We all make mistakes and I should know I've made enough of them
techzibits.comComment
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Takes *lots* of juice (energy) to liquefy a gas, especially hydrogen.Comment
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My ex can liquefy hydrogen just by looking at it...Comment
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Simple!
Water (H2O) is already liquid, so it's a simple matter of putting your face into a a bucket of water and taking a deep breath : since we breathe oxygen, all that oxygen goes into our body and the H2 stays in the bucket.
But be careful - that H2 could also get in, and it burns into your lungs; DAMHIKT!
It is the mark of an educated mind to be able to entertain a thought without accepting it.
- AristotleComment
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You need lots and lots of energy. This article discusses a super-conducting superp-collider, which uses hydrogen at just a few degrees K keep it cool.
http://ngm.nationalgeographic.com/20...achenbach-text
JRJRComment
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Do you guys remember the di-hydrogen oxide controversy a few years ago? how it had gotten into everything.Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas EdisonComment
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Borrow Uncle Crackers Ex and say something nasty to here!
I love this forum, you can get help with any problem here.
Bless the lot of you.
TimSometimes my mind wanders. It's always come back though......sofar!Comment
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Interesting... We were discussing a car at the Cleveland auto show. It was a concept car that they claimed used liquid Hydrogen in a fuel cell to produce electricity. In turn the car ran on electric motors. It seems that the energy needed to produce the liquid Hydrogen and the loss in system would make it way less efficient in the long run.
And it had an tail pipe??
And didn't Apalo blow up when they stirred the fuel tank? Imagine that mess on the freeway when stirring the tank causes a car to blow up!
LeeCut twice.... measure??Comment
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