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Turning Points in the Physical Sciences

Program 5: 1929-2004 (#105)

Program 5: 1929 - 2004
1929 - Edwin Hubble Initiates the Idea of an Expanding Universe
1942 - Manhattan Project Creates First Self-sustaining Chain Reaction
1963 - Maarten Schmidt Discovers Quasars
1964 - Murray Gell-Mann Postulates the Existence of Quarks
1967 - White Dwarfs, Neutron Stars, Pulsars and Black Holes
1990 - The Great Attractor and Dark Matter
2004 - Organic Material Found on Extrasolar Planet
[27 minutes] Closed Captioning

This episode has not aired in the past few months on Iowa Public Television.

PBS Video

Series Description: Turning Points In The Physical Sciences take you on an exciting journey of discovery from ancient through classical science to the world of modern physics, relativity, chaos theory and quantum mechanics.

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  • Program 1: 130 A.D.-1819 (#101)

    Program 1: 130 A.D.- 1819 130-1640 - Ptolemy to Galileo 1688-1796 - Newton to Nebular Theory of the Solar System 1800 - Electrolysis Reveals New Properties of Electricity 1808 - Atomic Theory of Matter is Announced 1814 - Light Reveals Spectral Lines [27 minutes]

  • Program 2: 1820-1845 (#102)

    Program 2: 1820 - 1845 1820 - Electromagnetism is Discovered 1824 - Carnot Expresses First Law of Thermodynamics 1830 - Charles Lyell Publishes 'The Principles of Geology" 1831 - Faraday Produces Electricity from Magnetism 1837 - A Past Ice Age is Theorized by Agassiz 1842 - Doppler Effect [27 minutes]

  • Program 3: 1846-1902 (#103)

    Program 3: 1846 - 1902 1846 - The Planet Neptune is Discovered 1864 - Maxwell’s Equations Unify Electricity and Magnetism 1869 - The First Periodic Table 1895-96 - X-Rays and Radioactivity are Discovered 1897 - First Subatomic Particle Found: The Electron 1900 - Principle of Quantum Physics Established by Max Planck [26 minutes]

  • Program 4: 1903-1928 (#104)

    Program 4: 1903 - 1928 1903 - Chaos Theory 1905 - Einstein’s Theories of Special and General Relativity 1907 - B.B. Boltwood Proposes Radioactive Decay be Used to Date the Earth 1912 - Alfred Wegener Proposes Continental Drift Theory 1925 - Wave-particle Duality and The Uncertainty Principle [25 minutes]

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