If you already have access to dry ice, try putting a mixture of dish washing soap and water in the bottom of a big graduated cylinder (or a 2L coke bottle with the top cut off...or maybe even not cut off, I haven't tried) and add dry ice. Try it and see what happens.
If you can get the equipment, making ice cream with liquid nitrogen can be fun, too. I was able to buy (and subsequently return...) a suitable dewar flask and cryogenic gloves from Fisher Scientific, and LN2 can be procured from many local suppliers (e.g., AirGas) though it may require some creative story-telling.
When I was in high school I managed to procure some elemental sodium from eBay and elemental potassium from somewhere else that I now forget. To detonate it safely, I built a simple rig using a 3ft segment of PVC pipe aimed down at a bucket of water. Then I stole a bunch of those little ketchup cups from Wendy's, poked a bunch of holes in the bottom and two in the sides to tie a piece of string through, filled them up with "diced" sodium, and put them (one at a time) in the pipe, using the string to keep them from falling. When you cut the string (which you could do from 10+ feet away), the ketchup cups of sodium would fall down the pipe into the bucket and explode. I got some serious (think eight foot high) flames from that. You might save that for when they're older, though.;)
I can't say whether it's a British/American difference, but I'm American and my guess is that this is just another example of grammar school teachers who don't really understand what they're teaching (much in the same way that they will often insist that a sentence cannot begin with "But" or "And" or that it cannot end in a preposition). See the Chicago Manual of Style for reference.
Actually, if John simply said, "Hello" (rather than asking, "Hello?") then an inquiry as to whether he did, in fact, say it should read:
Did John say, "Hello"?
Punctuation marks that are stronger than a period (i.e., question marks and exclamation points but not commas) fall outside the closing quotes if they have been added by the writer and inside only if they were extant in the original text/speech being quoted. Just wanted to clear that up!
I have read the books twice, but I found the movie lacking. It seemed as if Jackson, in order to meet length requirements, cut out all of the scenes that made you feel for the characters. I was just wondering if anyone else thought that the movie was distinctly lacking in character development?
Don't get me wrong, I enjoyed it, but nevertheless I know of several people who, having not read the books, couldn't feel anything for the characters and just took it as a movie about some "short people going around and stabbing things".
Slashdot Mirror
If you already have access to dry ice, try putting a mixture of dish washing soap and water in the bottom of a big graduated cylinder (or a 2L coke bottle with the top cut off...or maybe even not cut off, I haven't tried) and add dry ice. Try it and see what happens.
;)
If you can get the equipment, making ice cream with liquid nitrogen can be fun, too. I was able to buy (and subsequently return...) a suitable dewar flask and cryogenic gloves from Fisher Scientific, and LN2 can be procured from many local suppliers (e.g., AirGas) though it may require some creative story-telling.
When I was in high school I managed to procure some elemental sodium from eBay and elemental potassium from somewhere else that I now forget. To detonate it safely, I built a simple rig using a 3ft segment of PVC pipe aimed down at a bucket of water. Then I stole a bunch of those little ketchup cups from Wendy's, poked a bunch of holes in the bottom and two in the sides to tie a piece of string through, filled them up with "diced" sodium, and put them (one at a time) in the pipe, using the string to keep them from falling. When you cut the string (which you could do from 10+ feet away), the ketchup cups of sodium would fall down the pipe into the bucket and explode. I got some serious (think eight foot high) flames from that. You might save that for when they're older, though.
I can't say whether it's a British/American difference, but I'm American and my guess is that this is just another example of grammar school teachers who don't really understand what they're teaching (much in the same way that they will often insist that a sentence cannot begin with "But" or "And" or that it cannot end in a preposition). See the Chicago Manual of Style for reference.
--Matt
Actually, if John simply said, "Hello" (rather than asking, "Hello?") then an inquiry as to whether he did, in fact, say it should read:
Did John say, "Hello"?
Punctuation marks that are stronger than a period (i.e., question marks and exclamation points but not commas) fall outside the closing quotes if they have been added by the writer and inside only if they were extant in the original text/speech being quoted. Just wanted to clear that up!
--Matt
Is there any way to make this program keeps its index on a PGP secured drive or in some other way keep the index file away from prying eyes (or code)?
Perhaps we should all spend our energies slashdotting Congress. Then, perhaps, we might make a difference.
--Matt
Perhaps I'm mistaken, but I thought there were some suits that use self-contained air supplies? How would those prevent fogging, then?
--Matt
I have read the books twice, but I found the movie lacking. It seemed as if Jackson, in order to meet length requirements, cut out all of the scenes that made you feel for the characters. I was just wondering if anyone else thought that the movie was distinctly lacking in character development?
Don't get me wrong, I enjoyed it, but nevertheless I know of several people who, having not read the books, couldn't feel anything for the characters and just took it as a movie about some "short people going around and stabbing things".
--Matt