I heard people used to just float around before Newton invented gravity.
But I'm not sure. I think that's just hot air.
That's brilliant
PS: English is not my first language so I had to confirm if "hot air" is an idiom
Oh damn, I generally consider myself fairly decent at spelling but I've probably spelled buoyancy wrong every time I've written it.
You know, those two times. I can't say I'm often discussing buoyancy.