252 Index
Quarks
importance of, 203
origins of discovery, 203–4
weak and strong force, 172
Quasars and pulsars
importance of, 205
origins of discovery, 205–6
Queloz, Didier
existence of planets around other stars,
215–16
Radiation. See Atomic bonding; Big Bang
theory; Dark matter; Electromagnetic
radiation/radio waves; Infrared (IR) and
ultraviolet (UV) light; Solar radiation
Radiation sickness, 105
Radioactive dating. See also Isotopes
importance of, 119
origins of discovery, 119–20
Radioactive decay
nuclear fission, 178
weak and strong force, 171
Radioactivity
importance of, 105
origins of discovery, 105–6
polonium, 105–6
radium, 105–6
splitting of the atom, 105–6
Radio signals
quasars and pulsars, 205–6
Radio waves. See Electromagnetic
radiation/radio waves
Radium, 105–6
Recyclers
ecosystems, 170
Reid, Harry
fault lines, 126–27
Relativity. See Theory of relativity
Reproduction. See Sexual reproduction
Ribonucleic Acid (RNA)
cell structure, 166
Ribosomes
cell structure, 166
Ricci, Ostilio
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