Measurement
- gray (unit) (Gy), SI unit of absorbed radiation
- giga-year, 1,000,000,000 years (non-SI)
- A galactic year, the time it takes for the solar system to orbit the galactic center
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Famous quotes containing the word measurement:
“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)