On Sat, 01 Nov 2008 05:49:53 -0700, John M. wrote:

On Nov 1, 5:14 am, z wrote:
On Oct 31, 2:26 pm, Bill Ward wrote:



Those demonstrations do not show anything but the density and thermal
properties of the gases. They are being shown to gullible children as
propaganda.- Hide quoted text -

- Show quoted text -

well, then you can certainly give us a description of the physical
mechanism whereby the chambers containing methane (lighter than air) and
carbon dioxide (heavier than air) both warmed faster than air, due to
their "density and thermal properties".

You will no doubt have noticed Bilbo has been unable to do this, for the
entire time the 'school experiment' debate has has been going.

IIRC, Tom reported the methane heated slower and reached a lower final T
than air until he sealed and insulated the containers.

I haven't yet seen a sufficiently detailed description of the Mythbusters
version of the experiment to determine why (or if) the results are as
reported. I'd appreciate a link to a video of it, if anybody has one.