Radioactive

Science Timeline

By sylvizzles

  • John Dalton

    John Dalton
    This year John Dalton came up with the atomic theory that proposed...
    -All matter is composed of atoms
    -Atoms can't be made or destroyed
    -All atoms of the same element are Identical
    -Different elements are made of different types of atoms

  • Nuclear Power is discovered

    Nuclear Power is discovered
    French Scientist, Henri Becquerel, stored uranium next to x-ray photographic plates. He noticed that the plates were darkened because the uranium was emmiting some sort of energy. Later into research he discovered that it was neclear energy, and this came to the founding of Nuclear power.

  • J.J.Thomson

    J.J.Thomson
    Described the atom as a ball of postive charge containing a number of positive electrons.

  • Ernest Rutherford

    Ernest Rutherford
    He created the gold foil method to determin the nucleus of an atom.

  • Neils Bohr

    Neils Bohr
    Neils Bohr explained the atomic structure of the atoms as "successive orbital shells of electrons".

  • Chadwick

    Chadwick
    Discovered particle within the nucleus that has a mass similar to that of a proton. Thus, he is credited with the discovery of the nucleus

  • Cockroft/ Walton

    Cockroft/ Walton
    This is when the two scientists John Cockroft and Ernest Walton discovered how to split an atom in the Cavendish Laboratory in Cambridge inthe UK. Only weeks earlier, James Chadwick, also in Cambridge, discovered the neutron

  • James Chadwick wins the Nobel Peace prize

    James Chadwick wins the Nobel Peace prize
    James Chadwick won the Nobel Peace prize for his discoveries in Physical Science such as the founding of the nuetron.

  • WWII Started

    WWII Started
    World War II was a war that effected the entire country. This is when the United States started using science as a deadly weapon.

  • Atomic bom is dropped on Hiroshima

    Atomic bom is dropped on Hiroshima
    On This date, the first atomic bomb was dropped on Hiroshima, Japan durring World War II. This brought a near end to this awful long war.

  • Moon landing

    Moon landing
    President Kennedy pushed the United States in what was called the space race. Which was basically a race to be the first to do something in space, like making the first satelight and the first rocket and such. We ended up being the first to land on the moon.

  • Three Mile Island explosion

    Three Mile Island explosion
    The Explosion happened when a Secondary unit malfunctioned and caused an explosion to happen.