Revolutions in Twentieth-Century PhysicsThe conceptual changes brought by modern physics are important, radical and fascinating, yet they are only vaguely understood by people working outside the field. Exploring the four pillars of modern physics - relativity, quantum mechanics, elementary particles and cosmology - this clear and lively account will interest anyone who has wondered what Einstein, Bohr, Schrödinger and Heisenberg were really talking about. The book discusses quarks and leptons, antiparticles and Feynman diagrams, curved space-time, the Big Bang and the expanding Universe. Suitable for undergraduate students in non-science as well as science subjects, it uses problems and worked examples to help readers develop an understanding of what recent advances in physics actually mean. |
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acceleration actually antiparticle antiquark atom baryons Big Bang Bohr called charged weak classical clock composite lump confirmed conservation of energy constant velocity cosmic Cosmological dark energy dark matter decay definite density diagram distance Earth Einstein electric charge electrodynamics electromagnetic electron elementary particles emitted example fact Feynman field figure final find first fit flat flavor floor formula frequency frisbee galaxies going gravity ground heavier hydrogen inertial infinite influence isotope kinetic energy leptons measurement mediated meson meter stick motion moving muon neutrino neutrons Newton’s second law Notice nucleus object observer octet orbit physicists physics pion position positron potential energy principle of relativity Problem proton quantum mechanics quark model radiation radius reference frame reflected relativistic mass rest energy rest mass rock running slow significant special relativity specific speed of light stars strangeness Suppose tell temperature theory there’s train travels Universe wave function wavelength weak interactions zero