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what fun things can I do with dry ice? :evil;

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Originally posted by: DrPizza
Originally posted by: dullard
Bucket + water + liquid soap + dry ice + leave in coworker's office.
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:thumbsup:
I've heard about that a dozen times. I still want to see it in person.
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It looks like those black firework "snakes". The ones that are a little, black, pill-shaped pellet that when ignited forms a growing column of black mass. Except the dry ice makes a tall column of ~1" diameter white bubbles.

 
For what it's worth to any morons who intend to shake up a bottle of water and dry ice...
Just a warning to you (if you're thinking, "I can't possibly get hurt, it's just a plastic bottle)
In my physics class, we make rockets engines by pressurizing bottles that are about 1/2 filled with water. While testing my pressure regulator in class, I filled one (no water in it) to 100psi, and fired it under a lab bench. The bottle shot through the bottom of the book cubby - a 1/4 inch thick sheet of plywood, spraying particles of wood into the classroom (but fortunately injuring no one).

I'll repeat that: a 2 liter bottle, pressurized at 100psi, was shot through a 1/4 inch sheet of plywood.

So, certainly, a bottle pressurized to the point of bursting (160psi or more) couldn't possibly do any damage to your head, if you're shaking it in your arm and throwing it (which places the bottle 12 inches or less from your head), right??

Hmmmm....
🙂
This would make for a neat experiment to videotape.
 
Originally posted by: DrPizza
For what it's worth to any morons who intend to shake up a bottle of water and dry ice...
Just a warning to you (if you're thinking, "I can't possibly get hurt, it's just a plastic bottle)
In my physics class, we make rockets engines by pressurizing bottles that are about 1/2 filled with water. While testing my pressure regulator in class, I filled one (no water in it) to 100psi, and fired it under a lab bench. The bottle shot through the bottom of the book cubby - a 1/4 inch thick sheet of plywood, spraying particles of wood into the classroom (but fortunately injuring no one).

I'll repeat that: a 2 liter bottle, pressurized at 100psi, was shot through a 1/4 inch sheet of plywood.

So, certainly, a bottle pressurized to the point of bursting (160psi or more) couldn't possibly do any damage to your head, if you're shaking it in your arm and throwing it (which places the bottle 12 inches or less from your head), right??

Hmmmm....
🙂
This would make for a neat experiment to videotape.
Click to expand...


I saw this done with a bottle that had a gauge fitted and the pressure reached 800 psi before relieving itself.

This is what happens when the top of a two liter bottle becomes a nose cone and meets a face. WARNING: picture is graphic! :Q

This is what happens when you leave your common sense behind.
 
Originally posted by: C6FT7
Originally posted by: DrPizza
For what it's worth to any morons who intend to shake up a bottle of water and dry ice...
Just a warning to you (if you're thinking, "I can't possibly get hurt, it's just a plastic bottle)
In my physics class, we make rockets engines by pressurizing bottles that are about 1/2 filled with water. While testing my pressure regulator in class, I filled one (no water in it) to 100psi, and fired it under a lab bench. The bottle shot through the bottom of the book cubby - a 1/4 inch thick sheet of plywood, spraying particles of wood into the classroom (but fortunately injuring no one).

I'll repeat that: a 2 liter bottle, pressurized at 100psi, was shot through a 1/4 inch sheet of plywood.

So, certainly, a bottle pressurized to the point of bursting (160psi or more) couldn't possibly do any damage to your head, if you're shaking it in your arm and throwing it (which places the bottle 12 inches or less from your head), right??

Hmmmm....
🙂
This would make for a neat experiment to videotape.
Click to expand...


I saw this done with a bottle that had a gauge fitted and the pressure reached 800 psi before relieving itself.

This is what happens when the top of a two liter bottle becomes a nose cone and meets a face. WARNING: picture is graphic! :Q

This is what happens when you leave your common sense behind.
Click to expand...


Was that the cap, because it certainly looks like it was 😛

Mythbusters were pressurizing 2 liter bottles to well over 100psi in their water jet episode. I cannot remember exactly but IIRC it was ove 150psi.
 
dry ice actually has some uses, besides all this nonsense..

back when I was a teenager, and working at Tyson, I used some dry ice to "burn" a wort off of my finger. It was a fairly large wort; probably the size of a small pea.. well.. to this day, my finger still looks normal.. and the wort has been gone since..
 
Originally posted by: Fritzo
Originally posted by: shekondar
1. Put some water in a 2 liter soda bottle
2. Add dry ice
3. Quickly put cap on
4. RUN!!!!
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Cap, and then roll it down the parking lot. It helps release more gas.

Oh, and I can't stress the RUN part enough :shocked:
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run and run fast and far. Last time I did this I still got hit in the ankle with the bottle cap from about 150 yards away. Thought I broke my ankle. Couldnt walk for a week.

 
though not as nifty as an exploding soda bottle make a slit in the dry ice using a quarter, warm the quarter up using your hands and place it in the slit. The Quarter will ping back and forth between the sides due to the different expansion rates of the metals in it.
 
man....i have these three idiot friends.....
one day, they somehow got their hands on a hunk of dry ice and brought it to school. so, three idiots with dry ice, at school.
they decided to see who could keep it on their arms for the longest time.
friend #1: 4 seconds
friend#2: 23 seconds
friend#3 46 seconds!
they all wound up having to go to the hospital to have their burns treated....took about three months, and the winner still has marks 😛
 
Originally posted by: quackagator
We used to break it up in small chunks and put in a rag and wrap it around copper water lines
and freeze them.
Click to expand...


Yes the engineers use this method to stop waterflow on large circuits where it is not practical to discharge the whole loop, etc. CO2 bottle has dip tube that draws liquid CO2 out through hose to an insulated pack that is put around pipe. Temp in pack will reach - 109 F in a few minutes!
 
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