>>   I thought free energy was related to the first law, not the second.
> 
> Only in closed systems. If you can suck useful work out of ambient air 
> temperature, that counts as "free" energy in the "gratis" "no-cost" sense.
> 
> That is, it's in the same sense that running your car on solar energy is 
> "free energy", even tho obviously the sun is supplying the energy and is 
> running down much faster than your car is speeding up.

Dude, don't forget zero-point energy. One day somebody's going to figure 
out how to harness that and we'll all have limitless amounts of energy 
for nothing!

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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