How Atomic Clocks Work
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How Atomic Clocks Work
When the power goes out and is later restored, how do you know what time to set your clocks to? Have you ever wondered how time is regulated? Learn how scientists determine exact time.
1 个月前
How Atomic Clocks Work
Discover the inner workings of an "atomic clock," which harnesses quantum physics to keep exact time: | NOVA l PBS
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Discover the inner workings of an "atomic clock," which harnesses quantum physics to keep exact time: | NOVA l PBS
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How atomic clocks measure time more accurately ⌚️ If you apply an electric current to a crystal, it vibrates about 32,000 times a second. This frequency oscillation gives a more accurate measure of time and is the basis of atomic clocks, a technology born from the Second World War. Early atomic clocks vibrated at around 5 billion times a second. Current iterations get to 430 trillion energy transitions per second or more, allowing for far more refined definitions of time. Tap link to learn more:
1:09
How atomic clocks measure time more accurately ⌚️ If you apply an electric current to a crystal, it vibrates about 32,000 times a second. This frequency oscillation gives a more accurate measure of time and is the basis of atomic clocks, a technology born from the Second World War. Early atomic clocks vibrated at around 5 billion times a second. Current iterations get to 430 trillion energy transitions per second or more, allowing for far more refined definitions of time. Tap link to learn more:
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