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deezs
July 27th, 2001, 03:37 PM
In a few weeks I will have some liquid nitrogen. Do you know a few interesting experiments?

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"Don't belive anything, just because there is a good proverb for it."

Anthony
July 27th, 2001, 04:00 PM
Freeze shit or trade it for LOX then the real fun beginshttp://theforum.virtualave.net/ubb/smilies/smile.gif

BTW if you drink some you will be able to fly for 5 minutes!

a_bab
July 27th, 2001, 04:05 PM
Please tell me where did you'll get the N2 from, as I'm a neighbour of you (you are from Hungaria, wright ?)
I'm also very interested in liquid gases experiments.
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deezs
July 27th, 2001, 04:59 PM
Yes I am hungarian. There's a small factory, where they make diferent things from Al.
The father of one of my friends works in that factory. He said, that a week before there was more than 50 litres of liquid nitrogen left, what just evaporated useless.(I don't know what is it used for) I asked him earlier to bring out at least a liter, but I think that will be better, to ask the boss, to let me in, when they are done with work, to make a few experiments, in place.

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"Don't belive anything, just because there is a good proverb for it."

[This message has been edited by deezs (edited July 27, 2001).]

Anthony
July 28th, 2001, 08:01 PM
If a the company just gives you some of the LN2 the they're facing serious liability issues.

What are you planning on taking this LN2 home in, or keeping it for that matter? LN2 is very dangerous to store, I very much doubt you have the equipment capable of cooling it to it's critical temp, which you'd need ot store it. Just bunging it in a thermos flask is going to just give you a pressure bomb.

nbk2000
July 28th, 2001, 09:34 PM
An all polyethylene thermos will safely contain liquid nitrogen. Just don't seal it up air tight.

As for liability, I don't think Hungary is sue happy like the US. Hell, a lot of countries don't have ANY liability laws.

Those are were the really fun things can be done. http://theforum.virtualave.net/ubb/smilies/smile.gif

Try pouring some LN over a steel bar or chain, then smash it to pieces with a wack of a hammer. Works with locks too, so I've heard. http://theforum.virtualave.net/ubb/smilies/wink.gif

Or tie a mouse to a string and dunk it in, and watch it shatter into pieces too.

And DON'T drink it. http://theforum.virtualave.net/ubb/smilies/rolleyes.gif

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"The knowledge that they fear is a weapon to be used against them"

Go here (http://members.nbci.com/angelo_444/dload.html) to download the NBK2000 website PDF.

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-A-
July 29th, 2001, 03:15 AM
Well, in some way related to chemistry, I made ice cream a few times with liquid N. Just mix the ingredientes, and instead of puting it in the refrigerator, add some liquid N and mix it. Add as much as necessary to get the dessired "coolness". An there you have, instant ice cream hehe. (You can add some liquor also... hehe)

deezs
July 29th, 2001, 10:31 AM
The weather if fucnin' hot, so I think it will be better to make a few experiments in place, and bring home just a liter or so. I have glass thermos. It will do the job. No, I will not put on the cap. I'm not an idiot.
Btw liquid nitrogen is not so dangerous. When I was in the preparatory camp of the IChO, I put my finger to liquid nitrogen for a second. It wasn't colder, than touching a piece of ice. You know, when an object (my finger) is put into liquid gas(nitrogen), the gas starts to evaporate so fast, that it covers the object, and protects it from freezing for a second.
No, we haven't tested, how long can someone hold his finger in it, but I've heard, that a teacher (he wrote a 2 really good chemistry books), asked one of his students to hold the funnel, till he pours the nitrogen to another flask. He poured it onto the hands of his student. He was so scared, that he dropped away the thermos with the nitrogen. The guy had no ijury.
About getting the N2:
In my country, getting things like this, is as illegal, as anywhere, but I can persuade people, to help the development of the science (ME!). I do it for about 4 years now.

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"Don't belive anything, just because there is a good proverb for it."

Anthony
July 29th, 2001, 04:11 PM
Sure you can just leave the cap off the thermos flask but then you've got limited time before you loose it all.

You could fit a pressure release valve into the cap of the thermos which woulc keep it for longer as it'd be better insulated.

Surely if he can dip his finger in it then he could quickly take a swig and spit it out?

Lagen
July 29th, 2001, 04:22 PM
<font face="Verdana, Arial" size="2">Freeze shit or trade it for LOX then the real fun begins</font>
Anthony, by "trading it", did you mean a barter trade or something more like chemistry/physics? The latter is easy - dip a test tube in the liquid N2 for a few moments, and voila - you got LOX!

Anthony
July 29th, 2001, 06:48 PM
I meant in a trading way, but that is a good idea! I thought LOX was colder the LN2 though so the idea didn't cross my mind.

I guess pure oxygen would work better, so you wouldn't get liquified air which would be kinda impure. You could make some nice explosives easily with LOX.

Another idea, what if you put a gas canister in the LN2 like a CO2 powerlet, would it explode because the metal became to brittle/weak to hold the pressure, or would the CO2 become so cold that it's vapour pressure would be so weak it couldn't burst a wet paper bag?

FadeToBlackened
July 29th, 2001, 07:00 PM
Dip a cotton ball in LOX and hold it over a candle/flame http://theforum.virtualave.net/ubb/smilies/smile.gif Do so with some sort of reaching apparatus, heh.

nbk2000
July 29th, 2001, 09:17 PM
You may be confusing the nitrogen vapor cloud with the actual liquid gas. If your finger had actually been in the liquid, they'd be calling you "stubby" right now.

And if you try swigging the stuff, you'll be a prime candidate for the Darwin Award.

Boiling Points (in C) N2 -195, O2 -183

If you passed pure, dry, oxygen gas (welding gas) through a coil immersed in dry ice slurry to pre-cool it to -70C, then you'd have a much better chance of liqufying the oxygen using you're limited nitrogen supply.

Charcoal soaked with liquid oxygen is as powerful as 60% dynamite. Fun stuff.

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"The knowledge that they fear is a weapon to be used against them"

Go here (http://members.nbci.com/angelo_444/dload.html) to download the NBK2000 website PDF.

Go here (http://briefcase.yahoo.com/nbk2k) to download the NBK2000 videos.

Anthony
July 29th, 2001, 10:11 PM
What would you need to initiate the charcoal/LOX? Cap or just a heat source?

I ask because I saw a TV program (Clarkson) where a guy poured LOX onto something (can't remeber what) and put a match to it. I remeber thinking "that's going to explode!" but it just burnt. I wish I could remember what it was but I think it was absorbant, possibly some item of food.

DarkAngel
July 31st, 2001, 03:44 PM
I saw a movie of a guy that sett of his barbecue with LO,do you mean that?

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Anthony
July 31st, 2001, 05:34 PM
No, that guy uses a cigarette in amongst charcoal to ignite the LOX/charcoal on contact, if the LOX is poured on and then set light to it's supposed to explode.

deezs
August 1st, 2001, 02:54 PM
I think I will make some liquid Cl2O with it. It is a stronger oxidizer, than liquid oxigen.

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"Don't belive anything, just because there is a good proverb for it."

"To avoid injury in a battle, watch them from the nearer hill."