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Physicists are on the brink of redefining time...
Physicists are on the brink of redefining time...
Around the world, we are all controlled by the same, invisible force that tells us when to wake up, when to work, and even when to socialize: time. After this past year, the concept of time may seem less real than ever, but according to a team of physicists in Colorado, that couldn’t be further from the truth. The team used three different elements to measure the length of a second.
To date, atomic clocks (which absorb and emit photons at regular frequencies to keep time) are the most accurate way to measure the passage of time in seconds, but their accuracy has been stagnated for more than a decade. Using both optical fibres and invisible laser transmission of data, the research team measured the meaning of a second more accurately than ever before. They did it by looking at minute (the measure of size, not time) differences between time kept by the atoms — a crucial step toward redefining time itself.
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https://www.inverse.com/science/rede...d-atomic-clock
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