On Sun, 2 Oct 2005 15:03:14 -0700,
Wait -- are they not any more? Explosives are (possibly) different
matter, but all this is harmelss stuff.
Don't forget potassium + water, and the arsenic mirror experiment (which
blows up most of the time).
I didn't, but the main thrill wasn't its power but the fact that one had
made actual nitroglycerine. Regular black poder or chlorate-enhanced
variants thereof had higher entertainment value. Back then (20 years
ago) I could buy most the necessary ingredients in any pharmacy (and my
father would get the others). I don't know if that's true any mor.
robert
I'll never forget the time in about 9th grade chem class, where they
were teaching us how to identify a bottle of a gas with a burning wood
splint. Nitrogen puts it out, oxygen makes it flare up and burn white-
hot, and hydrogen quietly burns with an almost invisible pale blue
flame (although I've heard that a hydrogen flame in air makes UV).
We made the H2 and O2 by electrolysis, which was way cool, and
lessee - heated up some potassium permanganate with manganese
dioxide catalyst, and made oxygen, and made hydrogen with zinc
and HCl solution. Anyway, one day, when we came into class, the teacher
had one of those collection bottles, and got one of the kids to volunteer
to come up to the front of the class and put the burning splint to the
mouth of the bottle, just as he took off its lid.
It had hydrogen and oxygen in it. BOOM! The poor gal almost shat.
The windows rattled, and there were 29 secondary "plop"s when all
of the kids' butts landed back in their chairs. I swear, I saw
a flame four feet long, albeit almost instantaneously. I can't
imagine "them" letting anything like that happen again - in fact,
even at the time, I thought it was pretty stupid to make an
explosion like that in a glass bottle that you're holding in
your hand. =:-O
Oh, yeah, that's the same class where I flashed some CS2. That
was very weird - for a few seconds, the whole world was blue
flame, and then, of course, I found myself breathing SO2.
Ah, those were the good old days!
Thanks,
Rich