![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
Could Oumuamua be 'the fastest manhole cover'? (imagine water being thrown from a bucket, perhaps this steel cover made this shape on escape) - Quora
![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)