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Geodolite
1964-1978

Measuring distance with a laser
A Geodolite is a powerful and precise electronic distance-measuring instrument that uses a laser in place of an ordinary light source. Mounted on an airplane, it can profile ocean wave activity and ice formations. Mounted horizontally, it can be used for construction projects and traditional geodetic work involving the measurement of the earth's size and shape. Because of its price--about $50,000--almost all of the 30 or so Geodolites produced between 1964 and 1978 were purchased by federal agencies or by private firms working on federal contracts. The Geodolite thus exemplifies the intense involvement of the federal government in many areas of science and technology at the height of the Cold War.

Notes
Signed: Spectra Physics Geodolite 3G Laser Distance Measuring Instrument SN 96
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