Let's imagine that time has two versions: the familiar one we display on clocks, watches, and phones, but another version of time exists. Before people had clocks, they used the daily motion of
Continue readingIntroduction:For over a century, Einstein’s theory of relativity has been a dominant force in modern physics. It suggests that time slows down if we travel quickly, and that space contracts with
Continue readingLast week, my newsletter focused on the muon paradox; now let’s look at the transit of Mercury. General relativity predicts that, due to the curvature of spacetime around the sun, the perihelion
Continue readingScientists use the lifetime of muons as a tangible example that time is relative, as described by special relativity. However, time dilation is not actual time, so it can't cause a physical action.Muons
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