I'm sticking with Stevo's... but if i have to go into detail.. ill just collate a mix of the above idea's..
Tesla was cool too.. and Von Braun.. and Tsiolkovsky
Thats the only reason Physics can interest me , the history of the rockets and military side of things.. apart from that,.. who really gives a shite if "electrons in solids are shared between atoms and move freely"??
'Sif...