I’m thinking of things like heliocentrism where there was some modern discovery or revelation by science that invalidated a common assumption prior.
My understanding is that flat earth is more a recent phenomena but I’d love to hear some ancient ideas people now miss. Did people think trees weren’t alive? Did people think evaporation was where things simply disappeared?
I’d would love to hear these ideas.
Goddard wasn’t just another rocket scientist, he was the inventor of the liquid fuel rocket! And he also made a ton of other key discoveries about rocket design that formed the groundwork for rocketry as we know it today.
He was also a victim of the pendulum rocket fallacy.