What to do with left over liquid nitrogen

[calexanian]

I am going out of town for a bit and have about a liter of Liquid Nitrogen left in the dewar. Its a new very efficient dewar and the weather is getting cooler so I did not use nearly as much as I expected. I don't want to leave it in because of oxygen condensation, etc but I am done with all of my legit uses and yes, I already made ice cream. It was delicious.

Any inventive ideas to use up the bit before i just dump it out?

[orin]

I am going out of town for a bit and have about a liter of Liquid Nitrogen left in the dewar. Its a new very efficient dewar and the weather is getting cooler so I did not use nearly as much as I expected. I don't want to leave it in because of oxygen condensation, etc but I am done with all of my legit uses and yes, I already made ice cream. It was delicious.

Any inventive ideas to use up the bit before i just dump it out?

Mole hunting?



Sorry, not very effective...

Carrott has the answer (to your mole problem, not your N2 problem):

[Brumby]

Not so much inventive - just educational.

Do you have a school - or some neighbourhood kids that might be entertained by freezing bananas, bits of rubber hose, etc. and then destroying them with a hammer?

[Red Squirrel]

Park your car in a cool angle in a mall parking lot and splash it around it to create smoke effect then take a picture.   Great Scott! 

[T3sl4co1l]

Drink it?*

*Please don't.  There's a video of a guy who did, IIRC.  So we don't need any others.  (Successful application: you get the world's longest continuous belch.  Unsuccessful application: your stomach dies.  So, uh, yeah.)

Any of a dozen other experiments (besides ice cream ), or have you done everything already?

Tim

[Ampera]

Depending on how much you have, maybe you can supercool something big like a massive rock or a hunk of metal and bust it with a large hammer.


idk, probably the American in me talking, we always love to see shit go smash.

[Zero999]

ice cream

That's what I would do: make lots of ice cream!

[calexanian]

I have already made ice cream. no kids around me. All of the ones in my family have no interest. I love the taking a picture of a car one. I have a white Datsun roadster. but not enough time to set it up and i don't know how the white smoke against the white car would be. 

[WZOLL]

Maybe make a little liquid oxygen? I've always wanted to observe its para-magnetism.

[calexanian]

Too dangerous. At this point I am just going to dump it.

[Muttley Snickers]

You could chill out for a while.      

[Brumby]

Too dangerous. At this point I am just going to dump it.

Get some odd-ball items and freeze them.  Do a video of it.

If you don't want your face on camera, then hide it.  If you don't want your voice, then mute and use subtitles.

I just hate to see something so interesting go to waste.

[nanofrog]

At this point I am just going to dump it.

Might not be exciting, but it's the safe thing to do with it IMHO. Particularly if you don't have the protective gear to keep from losing limbs for example.   

[hendorog]

Overclock an arduino/PSoC/whatever you've got

[nanofrog]

  

[tautech]

Freeze some warts. 

[MK14]

Too dangerous. At this point I am just going to dump it.

I'm impressed, you seem have made a sensible decision.
I was going to suggest, safely disposing of it. But you have beaten me to it.

[German_EE]

Wait until Halloween and your imagination will do the rest.

[G0MJW]

Do some cool experiments?

I always liked the freeing a mercury hammer and using it to bang in a nail before it melts. Hard to find Mercury these days. Perhaps super cooled water ice can do the same? Don't know. How could we find out?

Mike

[NivagSwerdna]

Freeze a banana

And then dump the rest before you have an accident!

 

[chris_leyson]

Maplin in the UK used to sell a levitation kit a long time ago, a small crucible, a lump of Bismuth and a Neodimium magnet and for obvious reasons you had to supply your own liquid nitrogen.

[Zero999]

Don't dump it. Sell it.

[MK14]

Don't dump it. Sell it.

Google seems to say the bulk price for Liquid Nitrogen is

$0.50 per gallon.

and you want to suggest he messes about and tries to sell less than a quarter gallon ?
I.e. About 10 cents worth ?

Anyway, that's my 10 cents. 

Google:

The farther you are from the condensing plant, the higher the cost of the liquid nitrogen. In addition, when delivered in Dewar flasks, liquid nitrogen costs about $2 per gallon but when delivered in bulk storage tanks, it costs about $0.50 per gallon.
Price of Liquid Nitrogen - The Physics Factbook - Hypertextbook

[Zero999]

Don't dump it. Sell it.

Google seems to say the bulk price for Liquid Nitrogen is

$0.50 per gallon.

and you want to suggest he messes about and tries to sell less than a quarter gallon ?
I.e. About 10 cents worth ?

Anyway, that's my 10 cents. 

Google:

The farther you are from the condensing plant, the higher the cost of the liquid nitrogen. In addition, when delivered in Dewar flasks, liquid nitrogen costs about $2 per gallon but when delivered in bulk storage tanks, it costs about $0.50 per gallon.
Price of Liquid Nitrogen - The Physics Factbook - Hypertextbook

Presumably it comes in a flask, which is worth much more than the liquid nitrogen inside? I think he'll get a better price by flogging it on ebay to some hobbyist.

[MK14]

Presumably it comes in a flask, which is worth much more than the liquid nitrogen inside? I think he'll get a better price by flogging it on ebay to some hobbyist.

It does. But he seems to want/need to keep the Dewar Flask. As I think the OP, needs to do work (tests?), with the Liquid Nitrogen, from time to time.

But from your point of view (as you may not have realized this), you were completely correct. It would be potentially valuable (if it includes the storage apparatus), I presume.