Fun with liquid nitrogen

hiddenneggs · **Posted:** Sun Dec 26, 2004 4:37 am

Saw a demo of it at a museum decades ago -- the one detail I remember was the guy bouncing a rubber ball (the kind that are hollow, about the size of an apple or orange) on the floor, then dipping it into the liquid nitrogen with tongs. When he dropped/tossed it to the floor after that, it shattered like glass.

Atamand · **Posted:** Sun Dec 26, 2004 4:41 am

Sweet. There are just so many useless uses for that stuff.

Strechii · **Posted:** Wed Dec 29, 2004 3:14 am

I went to this day for Girl Scouts at National Institute of Standards and Technology a few years ago, and we made LN ice cream. Some other people and I added strawberry syrup to mine though and it lost it's ice cream feel. It was like soggier.

Eskimo · **Posted:** Thu Dec 30, 2004 4:29 pm

o_0' "Fun with liquid nitrogen"... Not cool dude.

Joelz Butterfly · **Posted:** Thu Dec 30, 2004 8:57 pm

Fizzy wrote:

A friend of ours who has eccentric hobbies came over last night with some liquid nitrogen. We had lots of fun eating graham crackers dipped into LN, and smoking like dragons, freezing roses, exploding bubbles, making ice cream (yum!).
Has anybody here had fun with liquid nitrogen?

Not that long ago, I was looking for pictures on the internet of the Marshmallow Peeps and I found a site that had someone playing with LN and peeps! The results were quite funny. But I have never had the chance myself to play with it before. Though I doubt I would lol I am quite the wuss.

LAQ · **Posted:** Thu Dec 30, 2004 9:45 pm

Marshamllow peeps... I won't bring up the website I saw on those. Some people have too much time on their hands.

shapu · **Posted:** Thu Dec 30, 2004 10:25 pm

Freeze a banana, and use it to drive a nail.

LAQ · **Posted:** Fri Dec 31, 2004 1:07 am

http://www.physik.uni-augsburg.de/~ubws/nitrogen.html

Lots of fun!

Asthaloth · **Posts:** 4284 **Joined:** Mon May 31, 2004 4:48 am

isnt liquid nitrogen explosive?
or was that liquid oxygen?
well, who cares aint nearly as explosive as napalm, which is disturbingly easy to make (and no, im not telling anyone how to)

Paulisacretin · **Posted:** Fri Dec 31, 2004 1:57 am

Setekh wrote:

isnt liquid nitrogen explosive?
or was that liquid oxygen?
well, who cares aint nearly as explosive as napalm, which is disturbingly easy to make (and no, im not telling anyone how to)

Well, yes it is, otherwise they would use napalm as rocket fuel wouldnt they.

Napalm is very viscous, and refuses to stop burning.

Petrol + either a pingpong ball/polystyrene and you're away

Asthaloth · **Posts:** 4284 **Joined:** Mon May 31, 2004 4:48 am

bah, petrols far to expensive, i can (or leastways could, we dont seem to have any <ha, nice try> in the house) from the stuff in my house.

-Ducky- · **Posted:** Fri Dec 31, 2004 7:04 am

Quote:

Warning ?

My clumsy physics Lab partner was always knocking over or spilling things.

So naturally when a beaker was spilt all over my Lab note book, I grabbed it

and lifted quickly out of the way.

How does one explain to the lecturer why my entire years work is shattered into

a hundred pieces ?

Luckily the partner did not stay for another year. He noted that a 1 inch diameter

polished steel optical reflector was very dirty. It needed more than just a simple wipe.

Intending to moisten it........ he lost a huge chunk out of the centre of his tongue !

I think he was expelled after a "snap oral test".

Otherwise, it's great fun for the careful.

Quote:

Freeze a can of shaving cream and then peel the can away from the

cream. Put the canless cream into someone's car. Let the oven-like

heat from the car's sitting in the sun defrost the shaving cream.

2 cans will fill an entire car. (Coulter C. Henry, Jr.)

Quote:

(4) I freeze balloons, as you mention, but in a better way.

Blow up a balloon and slip the end of the balloon over the open

end of a test tube, and place the closed end in a dewar full of

LN2. Your breath in the balloon will slowly liquify (10-15 minutes).

When the balloon is completely deflated, lift the test tube out of

the dewar and the audience can see your liquified breath in the

test tube. The tube will frost up, but you can wipe the frost off

with your fingers. Rest the test tube in a beaker, and as time

passes, the balloon will inflate again.

Quote:

Something nasty is proposed by Craig Shaw:

fill a small bottle with ln2 then screw the lid on tight. Put in a bag of flour and seal with elastic band. Then run

Igg · **Posts:** 6288 **Joined:** Fri Jun 04, 2004 5:47 pm

My friend's dad is a doctor and he nicks liquid nitrogen from his surgery and they arse around with it

Sapphire Faerie · **Posted:** Fri Dec 31, 2004 5:24 pm

-Ducky- wrote:

Quote:

Freeze a can of shaving cream and then peel the can away from the

cream. Put the canless cream into someone's car. Let the oven-like

heat from the car's sitting in the sun defrost the shaving cream.

2 cans will fill an entire car. (Coulter C. Henry, Jr.)

That doesn't actually work.

http://www.cockeyed.com/pranks/frozen/frozen.html

This guy tried it and documented it to see if it would work, and he ended up with only 12 cups of foam. Which is only about a bucketfull. Not enough to really fill a car.
I think you actually end up with more foam if you just spray it all out the old fashioned way.

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