Welcome to European Tribune. It's gone a bit quiet around here these days, but it's still going.
by dense I mean it weighs a lot per unit volume, and hence tends to sink.

by leaking out, I mean from the ground.

my point is really that the concentration of radon should be roughly uniform inside and outside, because it is being provided and decayed at the same rate.

I didn't realise the connection to cigarettes.

by njh on Thu Mar 31st, 2011 at 06:41:45 AM EST
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