Abstract
In the tetrad theory of gravitation Treder recently proposed field equations with potential coupling of matter. This coupling effects an absorption of the sources by the field itself. The changing value of solar potential along the elliptical path of the earth around the sun causes a change of the active gravitational mass of the earth with the annual period, so that, for instance, a pendulum will show an annual change in frequency. This effect may be tested, when the accuracy of measurements of the field of the earth has slightly increased.
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Greek minuscules, running from 0 to 3, are indices of the Riemann space.Latin minuscules take the values 1, 2, 3.Latin capitals, running from 0 to 3, are indices of the tangent space.Greek capitals take the values 1 and 2 and are indices of the unitary spinor space.
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Liebscher, DE. On the effect of absorption of gravitation. Int J Theor Phys 2, 89–100 (1969). https://doi.org/10.1007/BF00671586
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DOI: https://doi.org/10.1007/BF00671586