Brown-Famous Dead Guy Project

  • 250

    Thales-620 BC

    First person to publicly wonder what tha world around him was made of
  • 300

    Democritus-440 BC

    First person to come up with the atomic theory
  • 350

    Aristotle-340 BC

    Instead of atoms,thought of world as made up of four elements
  • Isaac Newton

    contributed to the atomic theory
  • John Dalton

    First person to come up with Atomism and Dalton's Atomic Theory.
  • Henri Baquerel

    Discovered Radioactivity
  • J.J Thomson

    discovered the electron and updated the model of the atom
  • Robert Andrews Milliken

    found charge of a single electron
  • Ernest Rutherford

    discovered the proton and nucleus and updated the atomic model
  • Niels Bohr

    discovered electrons have a certain orbit they follow
  • Francis Aston

    discovered the mass spectograph and 212 isotopes
  • Erwin Shrodinger

    used math equation to find the probabilty an electron would be in a certain position
  • James Chadwick

    discovered the neutron