/sci/ - Science & Math

>These laws of thermodynamics apply regardless of the size of the system. For example, the motions and rotations of celestial bodies such as planets may appear perpetual, but are actually subject to many processes that slowly dissipate their kinetic energy, such as solar wind, interstellar medium resistance, gravitational radiation and thermal radiation, so they will not keep moving forever.

What kind of goal post moving mother fucking definition is this? "OH, IT ONLY LASTS TENS OF BILLIONS OF YEARS, SO IT'S NOT TRUE PERPETUAL MOTION."

Mother fucker, if we built a machine on earth, the metals that it's made of will turn to dust in millions of years, so that doesn't make it a true perpetual motion machine?

I'm a petroleum engineering student :(
If my parents didn't have money and my gf wasn't a semen demon idk what I would be doing with my life