RazzyBerry Posted August 12, 2012 Share Posted August 12, 2012 So we know that smoke travels upwards. And there are holes in the foil above our shisha. So I'm wondering, what makes our smoke travel downwards instead of just escaping up through the foil? Link to comment Share on other sites More sharing options...
Stuie Posted August 12, 2012 Share Posted August 12, 2012 It's the weight of the smoke. It's cooking vapor not burning smoke. Think of it like Fog, The density of the smoke is heavier than air. Link to comment Share on other sites More sharing options...
grock Posted August 12, 2012 Share Posted August 12, 2012 Not sure if I am missing the point of this post completely, but isnt it because you are sucking in on the pipe? hahah On another related part though: Sometimes you'll actually see little puffs of smoke travel upwards out of the foil, though my thoughts are it is mainly through negative pressure inside the pipe pushing a small amount of smoke out. However, I feel smoke will just linger in the pipe, at a botany pressure, until it once again has suction applied. Link to comment Share on other sites More sharing options...
Bawhee Posted August 12, 2012 Share Posted August 12, 2012 If you overheat the smoke will start coming up from the top of the bowl, the thing is when you inhale the smoke, air flows over the coals, heating them up, at that point the smoke really starts to form and it is instantly dragged down into the pipe. Now if you were to just cover up your air valve and blow in the pipe (only gently though, dont want an accident) there will be a bit of smoke coming out up on top. The smoke youve inhaled and breathed out has already been cooled to the point where it wont travel upwards Link to comment Share on other sites More sharing options...
Coyote Posted August 12, 2012 Share Posted August 12, 2012 Vaporization is different from burning... One is a phase transition, the other a combustion. There are particles in vapor... Nicotine, flavor, water, whatever sweet-base, that are subject to gravity. Gravity pulls things toward earth. *Comments in this post do not necessarily reflect those of Tangiers Tobacco* Link to comment Share on other sites More sharing options...
kenshinx23 Posted August 12, 2012 Share Posted August 12, 2012 lol... the density of the hookah smoke is denser then air. Density is measure in mass/volume. Heat affects density by affecting the volume. This the relation of the PV=nRT. So the higher the T if other factors remain constant, V gets bigger. With a larger V density gets smaller. This how ever a very basic layout to show a relationship, it gets very complex very fast, you want to talk about the contents of M and V. Link to comment Share on other sites More sharing options...
Arcane Posted August 13, 2012 Share Posted August 13, 2012 hookah gremlins make the smoke go down. 4 Link to comment Share on other sites More sharing options...
headhunter Posted August 13, 2012 Share Posted August 13, 2012 [quote name='Arcane' timestamp='1344817240' post='553914'] hookah gremlins make the smoke go down. [/quote] +1 for awesome Link to comment Share on other sites More sharing options...
Urloc Posted August 15, 2012 Share Posted August 15, 2012 [quote name='Arcane' timestamp='1344817240' post='553914'] hookah gremlins make the smoke go down. [/quote] +2 Link to comment Share on other sites More sharing options...
RazzyBerry Posted August 15, 2012 Author Share Posted August 15, 2012 awesome, thanks guys. Knew it was the gremlins xD Link to comment Share on other sites More sharing options...
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