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Absolute measurements of the acceleration due to gravity are also of ... they measure only the differences between gravity values at various places .
The accuracy of relative measurements with a pendulum depends on timing accuracy ... levitated superconducting sphere is sensed to provide a measure of g .
The twist is measured on the scale from reflection of light from a small mirror at B ( see text ) . of M , on Mı given by GM M2 / ď adds to the pull of ...
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LibraryThing ReviewUser Review - keylawk - LibraryThing
This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review