Abstract

Unlike electricity, gravity is active in only one direction, namely attraction. If both phenomena are considered using the mathematical description called complementary language, the range of gravity turns out to be larger than the range of electricity. This seems to be the reason for the apparent one-sidedness of gravity. Beyond the reach of electromagnetic effects, repulsion of physical bodies is possible and this can be identified with expansion of the universe. With this last piece of the puzzle, our dualistic way of considering the universe, called twin physics, seems in principle to be completed. A coherent survey of the results so far is given, including a possible description of neutron decay. The results are compared with the features of the Standard Model.

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