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Everyday Time and Atomic Time: Part 1


Credit:
J. Burrus/NIST
As a physicist in the National Institute of Standards and Technology (NIST) Time and Frequency Division, I have worked in the general area of operating atomic clocks and using output signals from them to distribute time and frequency information for more than 40 years. I am also a Fellow at JILA, an institute operated jointly by NIST and the University of Colorado Boulder, and I teach in the physics department of the university.
I came to Boulder in 1967 as a post-doc at JILA. I joined NIST when it was still the National Bureau of Standards in 1969, and I was initially a physicist in the Radio Standards Physics Division. This division was engaged in several research projects that used lasers whose wavelengths were stabilized by adjusting them to match the wavelengths naturally absorbed by an atom or molecule. ....

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Scientists consider slashing a leap second from time as Earth spins at its fastest in half a century


Scientists consider slashing a leap second from time as Earth spins at its fastest in half a century
Timekeepers around the world are debating whether to add a negative leap second to time, in a would-be historical first.
FP Trending
January 07, 2021 11:28:19 IST
Earth.
Scientists have now revealed that that Earth is rotating faster than normal and as a result, the length of each day has become slightly shorter than 24 hours. Timekeepers around the world are reportedly debating whether to delete a second from time to account for the change and bring back precision to the timeline with respect to the rotation of the Earth. As per the report, the addition of the negative leap second has never been done before. ....

France General , United Kingdom , Peter Whibberley , National Physics Laboratory , Science Advances , Atomic Time , Earth Time , Global Warming , Sci Tech , Solar Time , பிரான்ஸ் ஜநரல் , ஒன்றுபட்டது கிஂக்டம் , தேசிய இயற்பியல் ஆய்வகம் , அணு நேரம் , பூமி நேரம் , உலகளாவிய வெப்பமயமாதல் , அறிவியல் தொழில்நுட்பம் , சூரிய நேரம் ,

Scientists consider slashing a leap second from time, as Earth spins at its fastest in half a century- Technology News, Firstpost


Scientists consider slashing a leap second from time as Earth spins at its fastest in half a century
Timekeepers around the world are debating whether to add a negative leap second to time, in a would-be historical first.
Jan 07, 2021 11:48:51 IST
Scientists have now revealed that that Earth is rotating faster than normal and as a result, the length of each day has become slightly shorter than 24 hours. Timekeepers around the world are reportedly debating whether to delete a second from time to account for the change and bring back precision to the timeline with respect to the rotation of the Earth. As per the report, the addition of the negative leap second has never been done before. ....

France General , United Kingdom , Peter Whibberley , National Physics Laboratory , Science Advances , Atomic Time , Earth Time , Global Warming , Sci Tech , Solar Time , பிரான்ஸ் ஜநரல் , ஒன்றுபட்டது கிஂக்டம் , தேசிய இயற்பியல் ஆய்வகம் , அணு நேரம் , பூமி நேரம் , உலகளாவிய வெப்பமயமாதல் , அறிவியல் தொழில்நுட்பம் , சூரிய நேரம் ,