Most dangerous secret weapon.The most bizarre weapons tests.

The most bizarre weapons tests. Most dangerous secret weapon.

Orbital velocity around earth is 8 km/second. Escape velocity is 11 km/second. Which means, if that manhole cover survived its journey through the atmosphere (which is unlikely, it probably burned up into drops of slag) there’s no chance it’s in orbit, it would be hurtling through space even as we speak.Interesting point to that, escape velocity from the sun’s gravity, at earth’s distance, is 42 km/second. If the cover did survive, and assuming it doesn’t run into any large objects in space, then it’s going to just keep travelling and will eventually leave the solar system all together. Per John Mullen, a mandatory image. (Randy Johnson was a 6′10 behemoth who was one of the hardest throwers in history.

It’s unlikely, but a thought I find weirdly comforting. In billions of years, when the sun burns out an all human life has ceased, what remnants of humanity will remain? In addition to the probes we’ve launched on purpose, this manhole cover from New Mexico will remain, floating through space forever. An eternal testament to humanity’s determination to throw our garbage as far and wide as possible.

Imagine this arrives as the first thing an alien race discovers about us, a greeting sent from the mighty City Water Maintainence to a series of little grey-green people who wish to know more about man holes.

No wonder they anal probe us, they know man holes are very powerful.

After the second World War, nuclear weapons testing were beginning to escalate in the United States, with lots of different experiments done, that didn’t just involve playing “who can make the biggest kaboom.”

Part of their testing involved containing nuclear explosions, blowing things up underwater, under concrete, underground.

One, particularly bizarre test involved building a 500-foot deep vertical tunnel. And then placing an overlarge manhole cover, just like this one:

The modified manhole cover was extremely tough and big: 4 feet wide and weighing 900kg. It was the exact width of the 500-foot deep underground tunnel, sealing the tunnel.

Then, at the very bottom of the tunnel, they placed the nuclear bomb.

Weird.

Scientists had no illusions that this manhole would somehow contain the nuclear blast. They were just curious to see how much of it would be.

Well. After they placed cameras around the outside perimeter. They then set the countdown. The tunnel, was sealed with this heavy manhole cover. Definitely not. If it stuck around in the atmosphere it would have burned up whatever carbon was in the steel, and vaporized the iron.

The only chance of it surviving at all is if it escaped the atmosphere fast enough to not burn. If it's still out there, it's as a blob of super hot liquid.

And when the nuke went off, only one camera caught a single frame of the manhole flying off.

It was calculated to be traveling at a speed of 41 miles (64 KM) per second. The manhole cover never came down either. (source: That time US scientists launched a manhole cap towards space. Milzarski) The object was the fastest object ever fired by a human being on this planet. It is either still in orbit around our Earth, or out somewhere further. And if you’d like a frame of reference, this manhole cover came flying off of this tunnel at more than 60 times the speed of a bullet. If it had hit a plane it would have vaporized it in a plume of bits like a fastball hitting a pigeon. The cover over the test shaft was moving at about 4 to 5X escape velocity, so it would be well on its way to interstellar space, assuming it survived the passage through the atmosphere. Far more likely that the intense pressures and friction of passage through the air disintegrated the cover instead.

Picture Source Google

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