Misc: What is MacGyver's first name??

Questions

whose law illustrates that when a cork is inserted into a flask, and great amounts of pressure are forced upon the cork, the flask will explode?

what is the name of the german/swiss/american mathematical physicist best remember for his theories on relativity?

a supernova star is known to astronomers as a what?

the ancient greeks played a form of football known to them as _________?

in 'back to the future', what kind of car did they go 'back to the future in?