The Science Book

DIRECTORY 339 contained in its genetic code. Its phenotype is that which results from the expression of that code. While individ ...

340 Absolute zero The lowest possible temperature: 0K or –459.67°F (–273.15°C). Acceleration The rate of change of velocity. Acc ...

GLOSSARY 341 Dark matter Invisible matter that can only be detected by its gravitational effect on visible matter. Dark matter h ...

342 Greenhouse gases Gases such as carbon dioxide and methane that absorb energy reflected by Earth’s surface, stopping it from ...

343 Superposition In quantum physics, the principle that, until it is measured, a particle such as an electron exists in all its ...

344 Numbers in bold indicate main entries. A Abell, George 250 abiogenesis 156–59 acceleration 42–43, 65–67, 218, 220 Adams, Joh ...

INDEX 345 Bouguer, Pierre 102 Bouvard, Alexis 87 Boveri, Theodor 224–25, 271, 279 Boyle, Robert 14, 21, 32, 46–49, 76, 78, 176 B ...

346 structure of 15, 169, 186, 187, 224, 268, 271, 276–83, 324, 326 Döbereiner, Johann 176 Dobzhansky, Theodosius 144 Donné, Alf ...

347 Hubble, Edwin 127, 200, 201, 236–41, 242, 243, 250 Huffman, Don 320 Huggins, William 127, 270 human genome 15, 268–69, 271, ...

348 K Kaluza, Theodor 311 Kant, Immanuel 120, 238 Karplus, Martin 338 Keeling, Charles 268, 294–95 Kekulé, August 15, 109, 119, ...

349 photoelectric effect 205, 216–17 photons 50, 88, 110, 182, 217, 228, 229, 231, 245, 247, 272–73, 292, 293, 299, 304, 307, 31 ...

350 quantum entanglement 314, 317 quantum field theories 234, 247, 272, 313 quantum mechanics 123, 162, 164, 202, 205, 212, 226– ...

351 T Tansley, Arthur 132, 134, 315 Tatum, Edward 318, 319 taxonomy 33, 60, 61, 74, 116, 319 Tegmark, Max 284 telescopes 15, 56, ...

352 ACKNOWLEDGMENTS Dorling Kindersley and Tall Tree Ltd. would like to thank Peter Frances, Marty Jopson, Janet Mohun, Stuart N ...