Quote:
Originally Posted by SneakySnake
friction?
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Quote:
Originally Posted by Shayne Parkinson
So succinct, so very appropriate. 
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Being a gentleman, I'll assume Sneaky's answer to be about the fire starting rather than the sidebar comments...
And to wit... yes, friction is '
causing' the 'heating,' but
WHAT is being heated and thrown off as 'spark?' What ARE sparks?
Stitchawl