isotope

what was that?
a minor earthquake. nothing to worry about.
are you sure? it sounded like a bomb.
don't be silly.
is it safe in here?
oh yes. our engineers foresaw all eventualities.
so what are these readings on that little machine you have?
well, um, those are roentgens. 10,000 of them.
that can't be good, can it?
no. not good. that's for sure.
where are all these engineers of yours, anyway?
ah, they said they had to attend a meeting.
a meeting? all of them? where?
ah, in Cleveland, actually.
no earthquake there, I bet.
no. not much roentgens, either.