21) What is the underlying structure of matter according to String Theory?
22) What type of mathematical model does String Theory rely on for its predictions?
23) How many dimensions does the universe have according to String Theory?
24) What type of energy binds the strings together in String Theory?
25) What type of supersymmetry does String Theory propose?
26) What is the name for the vibrational patterns of a string in String Theory?
27) What is the name for a quantum state in which all oscillators are at their lowest energy level?