[VonGuard]

Furthering the original question: the myth says Plumbbob launched a manhole cover into orbit, but the truth is slightly less than that, and it wasn't really a manhole cover.

Still, this is what happens when you use a nuclear bonb as a detonating charge at the bottom of a tube...

https://en.wikipedia.org/wiki/Operation_Plumbbob

[kakacik]

900kg steel cap is a bit more than manhole :)

And it was most probably vaporized, either by blast itself or by rapid compression of air. They estimated if it actually started flying it would have 6x Earth escape velocity (cca 240,000 kmh), no way to survive flight through 100km of atmosphere before reaching semi-vacuum

[Qem]

> no way to survive flight through 100km of atmosphere before reaching semi-vacuum

There is a question on stackexchange with one great answer about this. It probably didn't last a kilometer: https://physics.stackexchange.com/questions/488151/could-the...