Tsanangura simba rinokwevera zvinhu pasi
Giravhiti isimba rinokosha rinoita kuti zvinhu zvose zvine uremu kana kuti simba zvinokwezvana. Giravhiti ndiyo isina simba zvikuru pane zvinoitika zvina zvinokosha zvinoti simba, simba risina simba, remagetsi uye giravhiti. Zvisinei, ndiko kudyidzana kunokosha zvikurusa pakati pezvinhu pamwero mukuru, uye kunogadza kufamba kwemapuraneti, nyeredzi, mapoka enyeredzi, uye kunyange chiedza. Simba rinokweva rinorondedzerwa zvakarurama zvikurusa nedzidziso huru yokuwirirana iyo yakataurwa naAlbert Einstein. Dzidziso yacho inorondedzera simba rinokweva kwete sesimba, asi sokukombama kwenzvimbo-nguva, kunoparirwa nokuparadzirwa kusingaenzaniswi kwehuremu, uye kunoparira huremu kufamba mumitsetse yegeodesic. Zvisinei, nokuda kwezvinoshandiswa zvizhinji, simba rinokweva rinosvika zvakanaka nomutemo waNewton wokukweva kwenyika yose, uyo unorondedzera simba rinokweva sesimba rinoita kuti miviri ipi neipi miviri ikwevedzerwe kune mumwe nomumwe, ine ukuru hunoenzana nechibereko chemasa avo uye hunoenzana nenzira yakatarisana nekwere yenhambo iri pakati pavo.