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Lunar Laser Ranging: A Continuing Legacy of the Apollo Program
On 21 July 1969, during the first manned lunar mission, Apollo 11, the first retroreflector array was placed on the moon, enabling highly accurate measurements of the Earthmoon separation by means ofExpand
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A new generation of absolute gravimeters
We describe the design improvements incorporated in a new generation of absolute gravimeters, the FG5. Expand
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New Experimental Test of Coulomb's Law: A Laboratory Upper Limit on the Photon Rest Mass
A high-frequency test of Coulomb's law is described. The sensitivity of the experiment is given in terms of a finite photon rest mass using the Proca equations. The null result of our measurementExpand
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Lunar laser ranging
At the 1990 AGU Spring Meeting in Baltimore, Md., on Tuesday morning, May 29, there will be the special joint Geodesy-Planetology session Apollo Lunar Laser Ranging and Our Lunar Return. This sessionExpand
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The Lunar Laser Ranging Experiment
The lunar ranging measurements now being made at the McDonald Observatory have an accuracy of 1 nsec in round-trip travel time. This corresponds to 15 cm in the one-way distance. The use of lasersExpand
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Fourth International Comparison of Absolute Gravimeters
In 1994, from 24 May to 8 June, the fourth International Comparison of Absolute Gravimeters was held at the Bureau International des Poids et Mesures, S?vres, France. Eleven absolute gravimeters wereExpand
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Simple pendulum determination of the gravitational constant.
We determined the Newtonian constant of gravitation G by interferometrically measuring the change in spacing between two free-hanging pendulum masses caused by the gravitational field from largeExpand
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Thirty Years of Progress in Absolute Gravimetry: A Scientific Capability Implemented by Technological Advances
The application of technological advances has dramatically improved our ability to measure the absolute value of g, the free-fall acceleration due to gravity. Over the past thirty years thisExpand
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An antenna for laser gravitational-wave observations in space
Abstract Progress during the past two years on a proposed Laser Gravitational-Wave Observatory in Space (LAGOS) is discussed. Calculated performance for a 106 km sized antenna over the frequencyExpand
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