7 ;;Quote: quantum electrodynamics describes all physical phenomena except gravity, radioactivity and nuclear physics; there is no significant difference between experiment and theory

7+ ;;Quote: quantum electrodynamics is the theory behind chemistry; and biologists seek a chemical explanation of life

11 ;;Quote: easily explain how physicists predict natural phenomenon, but not how they do it efficiently; e.g., explain subtraction by removing beans

10 ;;Quote: for physicists, common sense, esthetics, and simplicity are irrelevant; a theory gives predictions that agree with experiment

10+;;Quote: quantum electrodynamics describes Nature as absurd

14 ;;Quote: light is made of particles called photons; can be individually detected

14 ;;Quote: 5 or 6 photons will activate an eye's nerve cell; if a single photon, would see flashes of equal intensity, i.e., particles

38 ;;Quote: light appears to reflect from one point of a mirror because that is where many possible paths take nearly equal time

38+;;Quote: quantum mechanics: determine the probability of an event by squaring the sum of the arrows for each way an event could happen

54 ;;Quote: light doesn't only travel in a straight line; it "smells" the neighboring paths through a small core of nearby space; e.g., a very small mirror scatters light instead of reflecting it

56 ;;Quote: the uncertainty principle is a side effect of quantum mechanics; the true view is the addition of probability amplitudes for all the ways an event can happen

75 ;;Quote: physics students often identify a photon with the arrow that represents the probability amplitude; but these arrows only define the probability of an event

84 ;;Quote: in 1910, physists thought of atoms as miniature solar systems with electrons orbiting the nucleus; this is no longer valid

85 ;;Quote: electrons behave like photons; on a large scale they travel like particles; inside an atom, there is no orbit, only all sorts of ways that the electron could go along with a probability amplitude for each way

85 ;;Quote: all electrical and light phenomena arise from photons and electrons moving from place to place and from electrons emitting and absorbing photons

85+;;Quote: each event in quantum electrodynamics has a probability amplitude; compute from the ways the event could have happened

100 ;;Quote: an electron is kept within a certain range of the nucleus by photon exchanges with protons

101 ;;Quote: light is scattered by the electrons inside a piece of glass and new photons are emitted; equivalent to back- and front-surface reflections