The message <MMTUc$Zz+kLFFw3q@otolith.demon.co.uk>
from Steve Walker <steve DeleteThis @otolith.demon.co.uk> contains these words:
> I think you're confusing two demonstrations; powder explosion (where you
> suspend a flammable powder in air and ignite it) and explosive mixture
> (where you put methane in a tin with a pinhole at the top and bottom and
> then light the methane coming out of the top. Eventually you end up with
> an explosive mixture in the tin and the lid is blown off)
Well, I've done the one with powder and a tin. Candle inside (small
holes in the bottom and top to allow enough air in to keep it alight.
Pile of flour. Puff pipe leading through another hole. Blow down pipe,
flour goes bang, off comes lid.
--
Skipweasel
Pay no attention to that man behind the curtain.
>> Stay informed about: Birds Custard....Is there nothing finer??