Nhoroondo: Balancer ine nhoroondo yemakore anopfuura zana.Muna 1866, German Siemens akagadzira jenareta.Makore mana gare gare, wekuCanada, Henry Martinson, akapa patent yekuenzanisa nzira, kutanga indasitiri.Muna 1907, Dr. Franz Lawa...
Verenga zvimwe