The likely record for fastest manmade object is a manhole cover launched by a nuclear bomb. A high-speed camera recording the lid only caught one frame of it moving meaning it was traveling over 125,000 miles per hour

The fastest object ever launched was a manhole cover — here’s the story from the guy who shot it into space

Two angles facing left, which often indicate, “return to the beginning.” Two angles facing right, which often indicate, “advance to the end.”

When I first heard this story, I didn’t believe it.

How could an iron manhole cover be the fastest human-made object ever launched?

I honestly pictured something akin to the exploding manhole covers that terrify NYC residents:

It wasn’t like that. This manhole cover was shot into space with a nuclear bomb.

Robert Brownlee, an astrophysicist who designed the nuclear test in question, told Tech Insider the unbelievable story.

He refutes his critics and asserts that yes, it likely was the fast… Continue Reading


Source: https://www.businessinsider.com/fastest-object-robert-brownlee-2016-2