Inearliesttimes,menconsideredlightningtobeoneofthegr...
問題詳情： Inearliesttimes,menconsideredlightningtobeoneofthegreatmysteriesofnature. Someancientpeoplebelievedthatlightningandthunderweretheweaponsofthegods.Inreality,lightningisaflowofelectricity...