Einstein's theory about the ______implies that reality has four ...

[naturalchemist]

Einstein's theory about the ______implies that reality has four dimensions, not three.
 
  Fill in the blank(s) with the appropriate word(s).

Question 2

_______________is based on the claim that the ultimate building blocks of reality aren't subatomic particles, but even smaller vibrating one-dimensional strings of energy.
 
  Fill in the blank(s) with the appropriate word(s).

[Carliemb17]

Answer to Question 1

Answer: space-time continuum

Answer to Question 2

Answer: String theory

[naturalchemist]

Excellent

[marict]

Great answer, keep it coming