Meghan R 6

  • Plato
    500 BCE

    Plato

    Founded the Academy, an academic program which many consider to be the first Western university.
  • Democritus
    405 BCE

    Democritus

    Developed the concept of the atom. They thought everything was made up of atoms.
  • The Alchemists
    400 BCE

    The Alchemists

    Tried to transform base metals such as lead or copper into silver or gold.
  • Aristotle
    330 BCE

    Aristotle

    Aristotle made pioneering contributions to all fields of philosophy and science. He invented the field of formal logic
  • Solar System model
    300 BCE

    Solar System model

  • Robert Boyle

    Robert Boyle

    Carried out experiments to investigate the properties of air and the vacuum they used glass tubes to find this out.
  • Lavoisier

    Lavoisier

    Lavoisier discovery of the role oxygen plays in combustion. He recognized and named oxygen in 1778 and hydrogen 1783.
  • John Dalton

    John Dalton

    When oxygen is combined with either one or two volumes of nitric oxide in closed vessels over water.
  • Solid Sphere of "Billiard Ball" Model

    Solid Sphere of "Billiard Ball" Model

  • Robert Millikan

    Robert Millikan

    Robert Millikan was a physicist, and discovered the elementary charge of an electron using the oil-drop experiment
  • Dmitri Mendeleev

    Dmitri Mendeleev

    Mendeleyev is best known for his discovery of the periodic law
  • The Curies

    The Curies

    discovery of radium and polonium, and her huge contribution to finding treatments for cancer.
  • J.J. Thomson

    J.J. Thomson

    Thomson announces the discovery of electrons
  • Planck's Quantum Theory of Light

    Planck's Quantum Theory of Light

    Planck postulated that the energy of light is proportional to the frequency
  • Plum Pudding Model

    Plum Pudding Model

  • Photoelectric Effect

    Photoelectric Effect

    The photoelectric effect was made by Albert Einstein. A photoelectric effect is emission of electrons when electromagnetic radiation, such as light, hits a material.
  • Ernest Rutherford

    Ernest Rutherford

    postulated the nuclear structure of the atom, discovered alpha and beta rays.
  • Neils Bohr

    Neils Bohr

    proposed a theory for the hydrogen atom, based on quantum theory that some physical quantities only take discrete values.
  • Albert Einstein

    Albert Einstein

    Made the general theory of relativity.
  • Electron Cloud Model

    Electron Cloud Model

  • Schrodinger Equation

    Schrodinger Equation

    Schrodinger equation gives the evolution over time of a wave function
  • Werner Heisenberg

    Werner Heisenberg

    Developed a key piece of quantum theory, the uncertainty principle, with profound implications.
  • James Chadwick

    James Chadwick

    James Chadwick discovery was the neutrons