Cherechedza ndima iri pasi apa uye wozopindura mubvunzo pashure mumutauro mumwe chete sezvinoita ndima: Passage: Gravity uye electromagnetism aigona nguva dzose norugare coexist sezvo zvinyorwa mune mazita chaiwo masimba, asi kwemakore akawanda zvaiita kuti giravhiti haagoni kunyange kuva zvabatanidzwa mu quantum framework, ndoda vakabatana nevamwe zvinokosha masimba. Nokuda kwechikonzero ichi, basa pamusoro kubatana, nokuti chikamu chikuru remakore rechimakumi maviri, nezvokunzwisisa vatatu "quantum" masimba: electromagnetism uye simba uye simba masimba. Vaviri vokutanga vakanga akabatanidzwa muna 1967-1968 kubudikidza Sheldon Glashow, Steven Weinberg, uye Abdus Salam kupinda "electroweak" simba. Mubvunzo: Ndezvipi masimba zvakasikwa kubatsira kuchengeta nyaya pamwe?
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