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One second in our universe
In our universe, one second is a fundamental unit of time measurement, representing a specific duration of time. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the cesium-133 atom.
In simpler terms, one second is the time it takes for a cesium-133 atom to oscillate a specific number of times between two energy levels. This definition provides a highly precise and reliable standard for measuring time intervals and is used as the basis for the atomic clock, one of the most accurate timekeeping devices.
Within the context of the universe, one second may seem minuscule compared to the vast scales of cosmic events and phenomena. However, it serves as a fundamental building block for measuring and understanding the passage of time in the universe, from the ticking of clocks on Earth to the timing of celestial events billions of light-years away. #science #sciencefacts #astronomy #space #facts #fact #fyp #foryou #reels #viral
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