[jambutty]

Originally Posted by entwisi

ian pats lpg tank in his volvo

as for teh post above, I've not lauged so much for a while. If petrol evapoarted and vented so quickly every car would stink of the stuff.

Ground temperature doesn't vary that much irrespective of above ground temp. Look at very frosty mornings, if all liqued unedr water froze the whole drainage syetem woud be a stinking blocked up mess.

Petrol does evaporate very quickly. That’s what makes it so volatile. People often state that they have been driving on fumes when they are short of petrol, little realising that is precisely what everyone is doing all the time – full tank or not. By the time that a drop of petrol is squirted into the cylinder it has turned to vapour (fumes) and it is the vapour that explodes when a spark is introduced.

Spill some petrol on your hand and within a few seconds your hand will be cold. That’s because the evaporating liquid draws the heat out of your hand. Did you never do that experiment in science class at school where a Petre dish was filled with water and a small dish filled with petrol was floated on top. Actually we used meths but the principle was exactly the same. As the meths/petrol evaporated it turned the water into ice. The experiment failed if you used say paraffin because it evaporates much more slowly.

Ever heard of permafrost? Where the ground is frozen solid to a depth of a few feet. Not in England of course because it doesn’t get cold enough. But it does on land above the Arctic circle.

It seems to me that you were so intent in trying to ridicule steeljack’s post that all you did is make yourself look stupid with; “Look at very frosty mornings, if all liqued unedr water froze the whole drainage syetem woud be a stinking blocked up mess.”
Liquid under water?