Muon
A muon is a subatomic particle that belongs to the lepton family, similar to an electron but with a mass about 207 times greater, making it unstable and prone to rapid decay. It plays a key role in particle physics by helping scientists probe the fundamental forces of the universe, such as in experiments at the Large Hadron Collider, and has practical applications in fields like medical imaging and archaeology due to its ability to penetrate dense materials.
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Muons travel so fast that, according to special relativity, they can reach the Earth's surface from the upper atmosphere despite their short lifespan of just 2.2 microseconds, a phenomenon that demonstrates time dilation and has baffled scientists since the 1940s. In a striking real-world application, muon detectors helped uncover a hidden chamber in Egypt's Great Pyramid of Giza in 2017, revealing secrets of ancient architecture that traditional methods couldn't access.
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