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Taking Measure

Just a Standard Blog

Adam J. Fleisher

Adam J. Fleisher (A.J.) is a Research Chemist in the Optical Measurements Group and a former National Research Council postdoctoral fellow. His research efforts include the development of optical methods for trace gas detection which bring the new SI to measurements of isotopic composition. In 2019, he was named an Ambassador of The Optical Society (OSA).

Fundamental Constants Are the Future of Measurement. Can They Replace Artifacts for Measuring Isotopes?

May 11, 2021

In an essay titled “The end of artefacts, ” Nobel laureate and National Institute of Standards and Technology (NIST) fellow William D. Phillips details how

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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 will 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, please contact us at takingmeasure [at] nist.gov.