It would nullify it. With both masses in place the "straightest" local path through spacetime would be the same as with neither, so the deviation due to the Earth would be the only effect. Brent On 2/9/2014 12:40 PM, Wouter Meeussen wrote:
in http://www.nist.gov/pml/div688/2013_1_17_newera_atomicclocks_3.cfm a atomic clock, using Y-Sr ‘lattice’, is said to achieve 3E-18 accuracy & stability. This would allow to detect time dilation caused by a mere 4 cm altitude difference.
If guestimating correctly, this would be equivalent to the gravitational effect of a 19 kg mass at a horizontal distance of 10 cm.
Question: would a second 19 kg mass on the opposite side anihilate the effect (null net acceleration) or double it ? Is gravity a normal ‘garden&kitchen’ vectorial field ?
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