- Author
-
Astin, A. V.
- Title
- Standards of Measurement.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Journal
-
Scientific American,
Vol. 218,
No. 6,
50-62,
June 1968
- Keywords
-
standards
|
measurement
- Abstract
- The goal is to define standards of length, mass, time and temperature that are both precise and reproducible. Of the four only mass still lacks a referent in nature.