This is not nonsense, but if you want me to speak in a language you understand then I will
Hey dude earth has *Gravity* that pulls stuff into it, but the sattelites are moving so fast that they're contesting that pull therefore they stay above the air, the reason they don't slow down is because there's no *Air resistance* in *space* because it's *space*
I've flagged words you might see as "words that don't mean anything" with **
Everything isn't just nonsense because you don't understand it