Clasificación de la Biblioteca del CongresoQC1-999

Albert(53) astrophysics(514) atomic(32) autobiography(686) biographies(399) biography(6,902) biology(151) black holes(236) branes(19) Caltech(27) chemistry(395) children's(272) climate(1,086) climate change(2,295) consciousness(181) cosmology(2,232) cosmos(49) disasters(141) earth(141) ecology(558) economics(174) energy(207) engineering(116) entropy(51) environment(2,002) environmental(97) environmental policy(55) environmentalism(301) Gauss(27) general relativity(597) general science(120) genius(96) geometry(79) global warming(1,530) gravity(385) green(107) history(3,272) history of science(1,046) hurricanes(647) informational(154) inventors(81) Kant(56) light(139) Manhattan Project(221) math(1,375) matter(229) metaphysics(209) modern physics(74) natural disasters(165) natural science(767) nature(536) Newton(216) nuclear(105) nuclear weapons(147) parallel universes(65) philosophy of science(453) physicist(60) physics/astronomy(67) physique(164) picture book(674) politics(692) popular physics(78) popular science(1,367) quantum(640) quantum gravity(150) quantum mechanics(2,011) quantum physics(1,898) reality(83) reference(569) relativity(1,626) Richard Feynman(272) science(24,014) science and technology(185) science biography(91) science nonfiction(89) science writing(54) scientific biography(33) scientists(576) space and time(137) spacetime(276) storms(200) string theory(846) Superstring theories(26) superstring theory(68) superstrings(57) sustainability(203) symmetry(72) theoretical(66) theoretical physics(215) theory of everything(34) thermodynamics(93) time(681) time dilation(41) time travel(356) unified field theory(26) universe(276) usa(247) weather(1,469) wormholes(37)