We're in Trouble

Than pure heat engine like than rocket or jet isnot cover by the law of Themosdynamic as is than fireplace. Rocket engine fuel efficient is measure by Isp. How many pounds of thrust is generate per pounds of fuel per second. The hightest chemical fuel rocket useing H and Fl as than fuel can generate 375 Isp, this fuel isnot use due to evroinent damage it can cause and the toxic effect on most life forms. Than MHD rocket can have a 1000 to 3000 Isp range.

 

Fire heat make, no meke jet fuel heat make Four Law Eensten quyote.

 

The Three Law of Themosdymanic only cover convert heat into mechanical engery. Than coal burning powerplant use coal to heat up water to turn it into steam, which in turn turn than tubin wheels to generate electric power. This came laws apply to internal combustion engine.

 

Who-far out. You guys read alot. I'm still at the stage of "Whoa. Fire. Pretty."