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Post by rsmith7 on Oct 20, 2010 20:14:51 GMT 1
Since cold air is denser than warm - how much "extra" do you get when the temperature is 3C compared to 20C? I'm thinking that going outside for a fag is much worse for you than staying inside.
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Post by carnyx on Oct 20, 2010 21:08:19 GMT 1
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