[ExI] Is this FTL Communication?

[spike]

...Will Steinberg
	Subject: [ExI] Is this FTL Communication?
	
	
	...Imagine we build a very, very long, very, very solid rod.  One
end of the rod is located very, very far away.  Will pushing one one end of
the rod effect an immediate response on the other?  Or is this just a
longitudinal wave of nuclear forces propagating at <c?    


It propagates at the speed of sound in the material, waaaaay slower than c.

spike