![A manhole cover launched into space with a nuclear test is the fastest human-made object. A scientist on Operation Plumbbob told us the unbelievable story. : r/space A manhole cover launched into space with a nuclear test is the fastest human-made object. A scientist on Operation Plumbbob told us the unbelievable story. : r/space](https://external-preview.redd.it/qputAMsXLa31wkABVuxYK2o17ZCcuYqR1JfBMr_PuSs.jpg?auto=webp&s=32789b8b9486931660821cff86e17f0a808b399f)
A manhole cover launched into space with a nuclear test is the fastest human-made object. A scientist on Operation Plumbbob told us the unbelievable story. : r/space
![ToughSF on Twitter: "The 'nuclear manhole cover to orbit' was based on a single frame captured during the Pascal-B test of Operation Plumbbob. It was estimated that the 900 kg steel plate ToughSF on Twitter: "The 'nuclear manhole cover to orbit' was based on a single frame captured during the Pascal-B test of Operation Plumbbob. It was estimated that the 900 kg steel plate](https://pbs.twimg.com/media/FILakk9WYAMn6lQ.jpg)
ToughSF on Twitter: "The 'nuclear manhole cover to orbit' was based on a single frame captured during the Pascal-B test of Operation Plumbbob. It was estimated that the 900 kg steel plate
ToughSF on Twitter: "The 'nuclear manhole cover to orbit' was based on a single frame captured during the Pascal-B test of Operation Plumbbob. It was estimated that the 900 kg steel plate
ToughSF on Twitter: "The 'nuclear manhole cover to orbit' was based on a single frame captured during the Pascal-B test of Operation Plumbbob. It was estimated that the 900 kg steel plate
![TIL during Operation Plumbbob's Pascal-B test, a steel plate was launched into the air at about 56 km/s, 5 times the speed of Earth's escape velocity, by a nuclear bomb : r/todayilearned TIL during Operation Plumbbob's Pascal-B test, a steel plate was launched into the air at about 56 km/s, 5 times the speed of Earth's escape velocity, by a nuclear bomb : r/todayilearned](https://external-preview.redd.it/6sTBd2kx1CaPiOwDzzNpLfUbxzAzsv7Q-LWfxTK297g.jpg?auto=webp&s=ea96a979035db0f238154ec2dabbe35f663cfdae)
TIL during Operation Plumbbob's Pascal-B test, a steel plate was launched into the air at about 56 km/s, 5 times the speed of Earth's escape velocity, by a nuclear bomb : r/todayilearned
![The Fastest Man-Made Object Might Be A Nuclear-Powered Manhole Cover Which Reached 125,000 MPH | Bored Panda The Fastest Man-Made Object Might Be A Nuclear-Powered Manhole Cover Which Reached 125,000 MPH | Bored Panda](https://static.boredpanda.com/blog/wp-content/uploads/2019/11/fastest-object-launched-iron-cap-robert-brownlee-5dcd6993d95bb__700.jpg)
The Fastest Man-Made Object Might Be A Nuclear-Powered Manhole Cover Which Reached 125,000 MPH | Bored Panda
![The Fastest Man-Made Object Might Be A Nuclear-Powered Manhole Cover Which Reached 125,000 MPH | Bored Panda The Fastest Man-Made Object Might Be A Nuclear-Powered Manhole Cover Which Reached 125,000 MPH | Bored Panda](https://static.boredpanda.com/blog/wp-content/uploads/2019/11/fastest-object-launched-iron-cap-robert-brownlee-5dcd5d74341ee__700.jpg)