Iqembu le-Physics leBanga le-11 belisebenzisa ucezu lwethu lwakamuva lwemishini emisha - ishubhu le-dual beam - ukukala ukushajwa kwesilinganiso sobukhulu (q/m) sama-electron. Ama-electron isheshiselwe isivinini esingafika kumamitha ayizigidi eziyishumi ngomzuzwana, ngaphambi kokuba igobeleke endleleni eyisiyingi ngozibuthe. Ngokukala ububanzi bendilinga kanye nesimanje emakhoyili asensimini, q/m kunganqunywa. Umzila wama-electron ama-electron amabili ungabonakala njengemigqa ewolintshi kushubhu, ebangelwa ama-electron ashaya ama-athomu e-neon akhona ngomfutho ophansi.
I-International School 
