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.
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.
Mar 3, 2023
YahooRebecca Harrington
Manhole Inspection Checklist (Free and editable template)
Manhole Inspection Checklist (Free and editable template)
Sep 29, 2022
sitemate.com
Operation Plumbbob’s “Manhole Test” (officially known as Pascal-B) was a U.S. nuclear test conducted in 1957 at the Nevada Test Site. It involved detonating a small nuclear device in a deep underground shaft capped with a steel manhole cover. The goal was to study high-energy explosive effects and containment methods. The test unintentionally launched the steel cap at an extraordinary speed, possibly exceeding Earth’s escape velocity (~11.2 km/s), making it one of the fastest manmade objects. Wh
0:05
Operation Plumbbob’s “Manhole Test” (officially known as Pascal-B) was a U.S. nuclear test conducted in 1957 at the Nevada Test Site. It involved detonating a small nuclear device in a deep underground shaft capped with a steel manhole cover. The goal was to study high-energy explosive effects and containment methods. The test unintentionally launched the steel cap at an extraordinary speed, possibly exceeding Earth’s escape velocity (~11.2 km/s), making it one of the fastest manmade objects. Wh
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