Precise Measurement

Some articles on precise measurement, measurement, precise:

Kilogram - Proposed Future Definitions - The Watt Balance
... The watt balance requires exquisitely precise measurement of the local gravitational acceleration g in the laboratory, using a gravimeter ... balance was disassembled and shipped in 2009 to Canada’s Institute for National Measurement Standards (part of the National Research Council), where research and development with the device could continue ... one percent—depending upon where on earth’s surface the measurement is made (see Earth’s gravity ) ...
Precision Tests Of QED - Measurements of The Fine-structure Constant Using Different Systems - Low-energy Measurements - Anomalous Magnetic Dipole Moments
... The most precise measurement of α comes from the anomalous magnetic dipole moment, or g−2 ("g minus 2"), of the electron ... To make this measurement, two ingredients are needed 1) A precise measurement of the anomalous magnetic dipole moment, and 2) A precise theoretical calculation of the anomalous magnetic dipole moment in terms of α ... As of February 2007, the best measurement of the anomalous magnetic dipole moment of the electron was made by Gabrielse et al ...

Famous quotes containing the words measurement and/or precise:

    That’s the great danger of sectarian opinions, they always accept the formulas of past events as useful for the measurement of future events and they never are, if you have high standards of accuracy.
    John Dos Passos (1896–1970)

    An imaginative book renders us much more service at first, by stimulating us through its tropes, than afterward, when we arrive at the precise sense of the author. I think nothing is of any value in books, excepting the transcendental and extraordinary.
    Ralph Waldo Emerson (1803–1882)