arch50
EN_01520598_1263
An undated photo provided by J. Burrus/NIST shows Elizabeth Donley, the chief of the time and frequency division at the National Institute of Standards and Technology, with an atomic gyroscope. Scientists are preparing to redefine the second, making the fundamental unit of time more precise and powerful. (J. Burrus/NIST via The New York Times) -- FOR EDITORIAL USE ONLY --
FOR EDITORIAL USE ONLY
MINIMALNA CENA 100USD!!!
2018-12-14
J. BURRUS/NIST/The New York Times Agency/East News
The New York Times Agency
J. BURRUS/NIST
15686773
1,73MB
23cm x 19cm by 300dpi
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