Parallax wrote:

I recently read somewhere a story about one of the first underground
nuclear tests called Bernallilo in which the vertical shaft was capped
with a massive steel plug. After the shot which was intentionally
vented to the atmosphere, that the steel cap wasn't found.
Calculations indicated that its velocity far exceeded earth escape.
Apocryphal or plausible? A search on underground nuclear testing
reveals nothing?

gee wonder why?
\

some people want to keep secrets, national security.


but theorize your heart away.then tell us all about it. got windows

holog