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Taking Measure

Just a Standard Blog


The Twelve Days of Metric

As we approach the end of 2022, we wanted to share with our readers a NISTified version of a classic seasonal song about a topic that is near and dear to our

Everyday Time and Atomic Time: Part 5

This is part 5 in a series. Read part 1 , part 2 , part 3 and part 4 . The Leap Second Solution When atomic clocks were developed in the 1950s, scientists

Everyday Time and Atomic Time: Part 4

This is part 4 in a series. Read part 1 , part 2 and part 3 . Greenwich Mean Time In the previous essay I introduced mean solar time , which averaged the annual


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About this blog

Taking Measure is the official blog of the National Institute of Standards and Technology (NIST).

It provides a behind-the-scenes look at NIST’s research and programs, covering a broad range of science and technology areas. Through this blog, NIST’s researchers and staff share why they do what they do and how today’s research will lead to tomorrow’s innovations.

The views presented here are those of the author and do not necessarily represent the views or policies of NIST.

If you have any questions about our blog or reprint requests, please contact us at takingmeasure [at]