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New Satellite Experiment Helps Confirm Einstein’s Equivalence Principle

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Part of Einstein’s idea of normal relativity posits that gravity equals inertial mass — and for the primary time in 10 years, there may be new proof that he is proper. Slashdot reader orsayman studies:

Most tales round area as of late appear to revolve round SpaceX, however let’s now not put out of your mind that area could also be a spot for cool physics experiments. One such experiment these days working into low orbit is the MICROSCOPE satellite introduced in 2016 to check the (susceptible) Equivalence Principle (additionally is aware of because the universality of loose fall) a central speculation in General Relativity.

The first effects confirm the principle with a precision ten times better than previous experiments. And it is just the start since they hope to extend the precision by way of any other issue of 10. If the Equivalence Principle remains to be verified at this precision, this might constrain or invalidate some quantum gravity theories. For the ones of you who’re extra satellite-science orientated, the satellite tv for pc additionally options an cutting edge “self destruct” mechanism (supposed to restrict orbit air pollution) according to inflatable constructions described in this paper.
“The science phase of the mission began in December 2016,” studies France’s area company, “and has already collected data from 1,900 orbits, the equivalent of a free fall of 85 million kilometres or half the Earth-Sun distance.”

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