Chaza amandla adonsela phansi
Amandla adonsela phansi awukuhlangana okuyisisekelo okubangela ukhangane phakathi kwazo zonke izinto ezinobuningi noma amandla. Amandla adonsela phansi abuthakathaka kunawo wonke phakathi kwamandla adonsela phansi amane ayisisekelo okuwukuthi amandla adonsela phansi aqinile, abuthakathaka, amandla adonsela phansi kagesi kanye namandla adonsela phansi. Nokho, kuwukuhlangana okubaluleke kakhulu phakathi kwezinto ezisesilinganisweni esikhulu, futhi kunquma ukunyakaza kwamaplanethi, izinkanyezi, imithala ngisho nokukhanya. Amandla adonsela phansi achazwa ngokunembile kakhulu yi - general theory of relativity eyasungulwa u - Albert Einstein. Lo mbono uchaza amandla adonsela phansi hhayi njengamandla, kodwa njengokugobeka kwesikhala-sikhathi, okubangelwa ukusatshalaliswa okungafani kwesisindo, futhi okubangela ukuba izixuku zihambe ngemigqa ye-geodesic. Nokho, ekusetshenzisweni okuningi, amandla adonsela phansi asondela kahle emthethweni kaNewton wokudonsela phansi kwendawo yonke, ochaza amandla adonsela phansi njengamandla abangela noma yimiphi imizimba emibili ukuba idonseleke komunye nomunye, ngobukhulu obulingana nomkhiqizo wobuningi bayo futhi ngokulinganayo ngokulingana nesikwele sebanga eliphakathi kwabo.