| Eötvös |
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| • | Eötvös (1888-1905/08s): @ 1 part in 108 by torsion |
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| balance
tests. |
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| It was indeed a very subtle idea that a deviation from the |
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| proportionality between inertial and gravitational mass |
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| should show up as a rotation of the balance (truly |
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| differential instrument….) |
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| Note: Eötvös
was not aware of the |
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| work by
Einstein just in the same |
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| years….he
had a very sensitive |
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| instrument and
used it!!! |
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