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Domain: dryiceinfo.com
Stories and comments across the archive that link to dryiceinfo.com.
Comments · 8
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Re:Hyperbole or stupidity
Getting the cap tight takes time. So you basically are holding on to the bomb after you have lit the fuse, and just hope the fuse burns for long enough.
And it's a pretty crappy fuse:
> It takes a known amount of time for a known mass of CO2 to turn into gas at a known temperature. There's your fuseIt's normally not a known mass and temp. It's kids shoving CO2 chunks into bottles filled with water (of poorly controlled quantity and temperature).
And when and how it blows up also depends on the strength of the bottle, cap and seal, which can vary.
To quote: http://www.dryiceinfo.com/fog.htm
"Small pieces of Dry Ice placed in an empty one liter plastic soda bottle and then filled with hot water may explode 2 to 120 seconds after the top is tightly screwed on. It also may crack anywhere and just fizzle. "
Wikipedia says: 30 seconds to 30 minutes
Such a high variation makes for rather unsafe fuse.
Like I said, you can set fireworks off in a far more controlled manner. And it's even harder to safely deal with with an unexploded dry ice bomb than with fireworks that somehow haven't gone off.
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Liquid CO2 storage in your car?From TFA:
The Georgia Tech team has already created a fuel processor, called CO2/H2 Active Membrane Piston (CHAMP) reactor, capable of efficiently producing hydrogen and separating and liquefying CO2 from a liquid hydrocarbon or synthetic fuel used by an internal combustion engine or fuel cell. After the carbon dioxide is separated from the hydrogen, it can then be stored in liquefied state on-board the vehicle. The liquid state provides a much more stable and dense form of carbon, which is easy to store and transport.
I don't know what planet they were planning to use these vehicles on, but on *this* one, CO2 is a GAS. You've got to have some serious refrigeration (requiring, uh oh, ENERGY) and some darned high pressure to store liquid CO2. Laws of thermodynamics aside, I'd rather not be sitting on a mobile dry ice bomb, thankyouverymuch.
A side note: the original tag for Roland articles was "pigpile", not "ohnoitsroland" (or any of the cruder variants). Piquepaille = Pigpile, get it? And it's usually an apt description of the science behind the "discovery". -
Re:Dangerous Stuff - Injuries!
http://www.dryiceinfo.com/Pictures/dry%20ice%20bo
m b%20injury.jpg
This guy gets my vote for the Darwin Awards.
http://www.darwinawards.com/
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Dangerous Stuff - Injuries!
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Dangerous Stuff - Injuries!
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Re:Gas giants
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Re:Of course GTR has been confirmed many times
cloud chamber, yours for not more than a few million dollars
How to Build a Cloud Chamber
You can probably scavenge common felt and tape and a slide projector etc for free. You can buy pure (not 70%) isopropyl alcohol for about $7.60, and Dry Ice for probably $20 or less. I can pick up dry ice locally for $10. The issue with dry ice is that it will only last a day or so unless you get a huge block. I had a $40 block last 3 or 4 days.
Dry Ice is a real blast for parties, but at -109.3F / -78.5C you freeze-burn yourself pretty badly, and the pure Carbon Dioxide gas can be a minor hazard. Safety page here. With gloves, ordinary ventilation, and basic common sence you should be fine.
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Re:dry ice
Well I just checked the yellow pages and there are a few wholesale suppliers in the Bay Area. These are probably the cheapest places for you to get dry ice.
It does seem sort of odd that Seattle has more dry ice suppliers than the entire state of California. Probably due to the large fishing industry here.
If you are looking for dry ice in quantity in the US or Canada look under "Dry Ice" in your yellow pages. Check several places for quantities available (wholesale dealers may have a minimum) and pricing.
www.dryiceinfo.com has some information on dry ice applications and a directory of dealers.
