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Chapter One, Tied Up with String

• The two most important fields in modern physics are general relativity and quantum mechanics.

• General relativity deals with very large or massive objects.

• Quantum mechanics deals with very small objects.

• These two theories are inconsistent with each other; they cannot both exactly be correct.

• String theory makes these two theories compatible.

• An atom is composed of a cloud of electrons in orbit around a dense nucleus of protons and neutrons.

• Protons and neutrons are composed of quarks; there are six kinds of quarks.

• Every particle has an antimatter counter-part that has the same mass but opposite electrical charge.

• When matter and antimatter contact, they are both destroyed and energy is released.

• The four fundamental forces of the universe are gravity, the electromagnetic force, the strong force, and the weak force

• String theory states that all particles are made of tiny vibrating one-dimensional...

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