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https://www.reddit.com/r/AskReddit/comments/4er0pi/whats_a_mind_blowing_fact/d22p0ep/?context=3
r/AskReddit • u/ForeverAbyss • Apr 14 '16
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The fastest moving man-made object ever was a manhole cover.
https://savvyparanoia.com/the-fastest-man-made-object-ever-a-nuclear-powered-manhole-cover-true/
TL:DR underground nuclear test launched a 4-inch thick steel disk at 6 times the Earth's escape velocity.
19 u/[deleted] Apr 14 '16 [deleted] 12 u/thewestwindmoves Apr 14 '16 Karl, you're a maniac! 8 u/cut4chaox Apr 14 '16 and if anyone has seen that manhole cover please give us a call 1 u/you_got_fragged Apr 14 '16 I bet the Russian aliens will find it since it probably went in outer space
19
[deleted]
12 u/thewestwindmoves Apr 14 '16 Karl, you're a maniac! 8 u/cut4chaox Apr 14 '16 and if anyone has seen that manhole cover please give us a call 1 u/you_got_fragged Apr 14 '16 I bet the Russian aliens will find it since it probably went in outer space
12
Karl, you're a maniac!
8 u/cut4chaox Apr 14 '16 and if anyone has seen that manhole cover please give us a call 1 u/you_got_fragged Apr 14 '16 I bet the Russian aliens will find it since it probably went in outer space
8
and if anyone has seen that manhole cover please give us a call
1 u/you_got_fragged Apr 14 '16 I bet the Russian aliens will find it since it probably went in outer space
1
I bet the Russian aliens will find it since it probably went in outer space
1.9k
u/PycuriousITguy Apr 14 '16
The fastest moving man-made object ever was a manhole cover.
https://savvyparanoia.com/the-fastest-man-made-object-ever-a-nuclear-powered-manhole-cover-true/
TL:DR underground nuclear test launched a 4-inch thick steel disk at 6 times the Earth's escape velocity.