How is electrical energy generated?

Though a Generator spining at 3000rpm for 50hz, 3600 rpm for 60 hz (1 pair of north, south magnets) moveing the electrons in copper wire coils, (1500/1800 for two pairs ect)

the generator is powerd by fission u235 using heat to boil water into steam turning the turbines that power (said) generator/s, and/or some other way to turn a generator, ~hydro electric, wind,solar,tidel.