Kudvuma

Kuya ngekutsi umbane ukhashane kangakanani kanye nesimo sawo, kungaba kusuka ekudvumeni lokululile, lokuphansi kuya ekugagabukeni  lokukhulu esitfubeni. Lokwenyuka kwelizinga lekushisa esitfubeni lokubanga kucindzetela lokubangelwa ngumbane kukhicita kunwebeka  kwemoya endleleni yembane .  Ngako ke  luhlangotsi, lokunwebeka kwemoya kwenta ligagasi lekushaywa i-sonic lelivame kubitwa ngekutsi "kudvuma" lokuba ngumsindvo lolandzela umbane. Lucwaningo lwesayensi lwekudvuma kwatiwa ngekutsi yi-brontology kantsi kwesaba lokusuka engcondvweni ( phobia ) kwekudvuma kubitwa ngekutsi yi-brontophobia .