All Seasons

Season 1

  • S01E01 Introduction

    • October 29, 1985
    • PBS

    This preview introduces revolutionary ideas and heroes from Copernicus to Newton, and links the physics of the heavens and the earth.

  • S01E02 The Law of Falling Bodies

    • October 30, 1985
    • PBS

    Galileo's imaginative experiments proved that all bodies fall with the same constant acceleration.

  • S01E03 Derivatives

    • October 31, 1985
    • PBS

    The function of mathematics in physical science and the derivative as a practical tool.

  • S01E04 Inertia

    • November 1, 1985
    • PBS

    Galileo risks his favored status to answer the questions of the universe with his law of inertia.

  • S01E05 Vectors

    • November 2, 1985
    • PBS

    Physics must explain not only why and how much, but also where and which way.

  • S01E06 Newton's Laws

    • November 3, 1985
    • PBS

    Newton lays down the laws of force, mass, and acceleration.

  • S01E07 Integration

    • November 4, 1985
    • PBS

    Newton and Leibniz arrive at the conclusion that differentiation and integration are inverse processes.

  • S01E08 The Apple and the Moon

    • November 5, 1985
    • PBS

    The first real steps toward space travel are made as Newton discovers that gravity describes the force between any two particles in the universe.

  • S01E09 Moving in Circles

    • November 6, 1985
    • PBS

    A look at the Platonic theory of uniform circular motion.

  • S01E10 Fundamental Forces

    • November 7, 1985
    • PBS

    All physical phenomena of nature are explained by four forces: two nuclear forces, gravity, and electricity.

  • S01E11 Gravity, Electricity, Magnetism

    • November 8, 1985
    • PBS

    Shedding light on the mathematical form of the gravitational, electric, and magnetic forces.

  • S01E12 The Millikan Experiment

    • November 9, 1985
    • PBS

    A dramatic recreation of Millikan's classic oil-drop experiment to determine the charge of a single electron.

  • S01E13 Conservation of Energy

    • November 10, 1985
    • PBS

    According to one of the major laws of physics, energy is neither created nor destroyed.

  • S01E14 Potential Energy

    • November 11, 1985
    • PBS

    Potential energy provides a powerful model for understanding why the world has worked the same way since the beginning of time.

  • S01E15 Conservation of Momentum

    • November 12, 1985
    • PBS

    What keeps the universe ticking away until the end of time?

  • S01E16 Harmonic Motion

    • November 13, 1985
    • PBS

    The music and mathematics of periodic motion.

  • S01E17 Resonance

    • November 14, 1985
    • PBS

    Why a swaying bridge collapses with a high wind, and why a wine glass shatters with a higher octave.

  • S01E18 Waves

    • November 15, 1985
    • PBS

    With an analysis of simple harmonic motion and a stroke of genius, Newton extended mechanics to the propagation of sound.

  • S01E19 Angular Momentum

    • November 16, 1985
    • PBS

    An old momentum with a new twist.

  • S01E20 Torques and Gyroscopes

    • November 17, 1985
    • PBS

    From spinning tops to the precession of the equinoxes.

  • S01E21 Kepler's Three Laws

    • November 18, 1985
    • PBS

    The discovery of elliptical orbits helps describe the motion of heavenly bodies with unprecedented accuracy.

  • S01E22 The Kepler Problem

    • November 19, 1985
    • PBS

    The deduction of Kepler's laws from Newton's universal law of gravitation is one of the crowning achievements of Western thought.

  • S01E23 Energy and Eccentricity

    • November 20, 1985
    • PBS

    The precise orbit of a heavenly body — a planet, asteroid, or comet — is fixed by the laws of conservation of energy and angular momentum.

  • S01E24 Navigating in Space

    • November 21, 1985
    • PBS

    Voyages to other planets use the same laws that guide planets around the solar system.

  • S01E25 Kepler to Einstein

    • November 22, 1985
    • PBS

    From Kepler's laws and the theory of tides, to Einstein's general theory of relativity, into black holes, and beyond.

  • S01E26 Harmony of the Spheres

    • November 23, 1985
    • PBS

    A last lingering look back at mechanics to see new connections between old discoveries.

  • S01E27 Beyond the Mechanical Universe

    • November 24, 1985
    • PBS

    The world of electricity and magnetism, and 20th-century discoveries of relativity and quantum mechanics.

  • S01E28 Static Electricity

    • November 25, 1985
    • PBS

    Eighteenth-century electricians knew how to spark the interest of an audience with the principles of static electricity.

  • S01E29 The Electric Field

    • November 26, 1985
    • PBS

    Faraday's vision of lines of constant force in space laid the foundation for the modern force field theory.

  • S01E30 Potential and Capacitance

    • November 27, 1985
    • PBS

    Franklin proposes a successful theory of the Leyden jar and invents the parallel plate capacitor.

  • S01E31 Voltage, Energy, and Force

    • November 28, 1985
    • PBS

    When is electricity dangerous or benign, spectacular or useful?

  • S01E32 The Electric Battery

    • November 29, 1985
    • PBS

    Volta invents the electric battery using the internal properties of different metals.

  • S01E33 Electric Circuits

    • November 30, 1985
    • PBS

    The work of Wheatstone, Ohm, and Kirchhoff leads to the design and analysis of how current flows.

  • S01E34 Magnetism

    • December 1, 1985
    • PBS

    Gilbert discovered that the earth behaves like a giant magnet. Modern scientists have learned even more.

  • S01E35 The Magnetic Field

    • December 2, 1985
    • PBS

    The law of Biot and Sarvart, the force between electric currents, and Ampère's law.

  • S01E36 Vector Fields and Hydrodynamics

    • December 3, 1985
    • PBS

    Force fields have definite properties of their own suitable for scientific study.

  • S01E37 Electromagnetic Induction

    • December 4, 1985
    • PBS

    The discovery of electromagnetic induction in 1831 creates an important technological breakthrough in the generation of electric power.

  • S01E38 Alternating Current

    • December 5, 1985
    • PBS

    Electromagnetic induction makes it easy to generate alternating current while transformers make it practical to distribute it over long distances.

  • S01E39 Maxwell's Equations

    • December 6, 1985
    • PBS

    Maxwell discovers that displacement current produces electromagnetic waves or light.

  • S01E40 Optics

    • December 7, 1985
    • PBS

    Many properties of light are properties of waves, including reflection, refraction, and diffraction.

  • S01E41 The Michelson-Morley Experiment

    • December 8, 1985
    • PBS

    In 1887, an exquisitely designed measurement of the earth's motion through the ether results in the most brilliant failure in scientific history.

  • S01E42 The Lorentz Transformation

    • December 9, 1985
    • PBS

    If the speed of light is to be the same for all observers, then the length of a meter stick, or the rate of a ticking clock, depends on who measures it.

  • S01E43 Velocity and Time

    • December 10, 1985
    • PBS

    Einstein is motivated to perfect the central ideas of physics, resulting in a new understanding of the meaning of space and time.

  • S01E44 Mass, Momentum, Energy

    • December 11, 1985
    • PBS

    The new meaning of space and time make it necessary to formulate a new mechanics.

  • S01E45 Temperature and Gas Laws

    • December 12, 1985
    • PBS

    Hot discoveries about the behavior of gases make the connection between temperature and heat.

  • S01E46 Engine of Nature

    • December 13, 1985
    • PBS

    The Carnot engine, part one, beginning with simple steam engines.

  • S01E47 Entropy

    • December 14, 1985
    • PBS

    The Carnot engine, part two, with profound implications for the behavior of matter and the flow of time through the universe.

  • S01E48 Low Temperatures

    • December 15, 1985
    • PBS

    With the quest for low temperatures came the discovery that all elements can exist in each of the basic states of matter.

  • S01E49 The Atom

    • December 16, 1985
    • PBS

    A history of the atom, from the ancient Greeks to the early 20th century, and a new challenge for the world of physics.

  • S01E50 Particles and Waves

    • December 17, 1985
    • PBS

    Evidence that light can sometimes act like a particle leads to quantum mechanics, the new physics.

  • S01E51 From Atoms to Quarks

    • December 18, 1985
    • PBS

    Electron waves attracted to the nucleus of an atom help account for the periodic table of the elements and ultimately lead to the search for quarks.

  • S01E52 The Quantum Mechanical Universe

    • December 19, 1985
    • PBS

    A last look at where we've been and a peek into the future.