27 Apr
2011
27 Apr
'11
7:23 a.m.
At 18:59 -0500 4/26/11, ard wrote:
If you are really crazy, use containers of salt water
with suitable
electrodes in them :-). Just don't knock them over and spill the liquid
into the machine under test.
...and do work in a ventilated area. The bubbles evolving off the
salt water will be, er, flammable, yes?
Did this with the kids, 12V supply = jump cables from my car,
foil "electrodes" in salt water, inverted test tube on a long holder,
and a candle to verify the type of gas (used the holder to move the
tube over the candle). Lucked out and collected the Hydrogen on the
first try (well, it wasn't really luck. The electrode with twice as
many bubbles had to be the H2.) They were suitably impressed. I was
impressed how fast the aluminum foil went away (into solution).
--
- Mark 210-379-4635
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Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.