Hydrogen flame: Thermocouple

From: H2O (h2o_at_hotmail.com)
Date: 12/22/04 

Date: Wed, 22 Dec 2004 19:58:55 GMT

I've been trying to make little amounts of electricity using a thermocouple,
and hydrogen stored in a testube.
But, when I measure the voltage on the other end with a voltmeter, the
needle doesn' t even move.
I don't think I'm burning the hydrogen right, as there are no signs of the
heat. All I do is put a flame near the mouth, and nothing happens, when I
place the themocouple over it, and measure the other side.
Is the themocouple supposed to just go over the testube or inside the
testube?
And how is the hydrogen flame started?