[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [APD] plant weights

On 9/4/07, Richard J. Sexton <richard at aquaria_net> wrote:
> At 06:32 PM 9/4/07 -0700, you wrote:
> >
> >OTOH magnesium is fun when mixed with pool acid to make giant hydrogen
> >balloons out of lawn trash bags. Floating Hefty bags are a sight to
> behold.
> Expecially if you can get 50% oxygen in there as well, and tape an M80
> with a long fuse to it.

I used to scare the dickens out of students in freshman chem classes by
blowing up H2 and H2/O2 mixed balloons.  One faculty member used to do that
in a chemistry show that was very entertaining, using larger and larger
balloons.  The night of his greatest glory was when, after doing this
exactly that, his assistant brought in a weather balloon filled with
helium.  The first several rows of people immediately scrambled for the back
of the room.

Aquatic-Plants mailing list
Aquatic-Plants at actwin_com