Ever seen a manhole cover blast off?
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MSNAstroKobi
Ever seen a manhole cover blast off?
Explore the intriguing phenomenon of manhole covers and the fascinating forces that could theoretically launch one into space. This video delves into the science behind manhole cover explosions, examining the pressure, materials, and various conditions involved.
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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.
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In 1957, scientists might’ve accidentally made space history with a manhole cover. During a nuclear test in Nevada, a steel cap sealed over a deep shaft was blasted into the sky at an estimated 125,000 mph. That’s five times the speed needed to leave Earth! Only one blurry frame on a high-speed camera caught it before it vanished. Some say it burned up in the atmosphere, others think it might’ve become humanity’s first object in space even before Sputnik. Either way, it's one wild Cold War myste
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In 1957, scientists might’ve accidentally made space history with a manhole cover. During a nuclear test in Nevada, a steel cap sealed over a deep shaft was blasted into the sky at an estimated 125,000 mph. That’s five times the speed needed to leave Earth! Only one blurry frame on a high-speed camera caught it before it vanished. Some say it burned up in the atmosphere, others think it might’ve become humanity’s first object in space even before Sputnik. Either way, it's one wild Cold War myste
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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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