On Mon, 18 Jun 2007 13:17:31 +0200, "David \(Normandy\)"
wrote and included this (or some of this):

As a reckless teenager in the 70's I used to have some fun with a mixture of
concentrated nitric and sulphuric acids. A drop or two of a certain cough
remedy and you've got the loudest 'bangers' on November the 5th ;-) Just
don't drop them!

Ammonium Tri-Iodide was good fun, too.


We used to drop it around the lab floors and let it dry out in blobs.
Frightened the kecks off a few cleaners sweeping up the next morning.





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