First time line

By patrizioe3
  • Jan 1, 1000

    Arisotale

    Arisotale
    500 B.C.
    What did he do?He said all substances were bulit up from only four elements: earth, water, air, fire
    How did he prove it? Back in that time all they had to do was say it and it was proven
  • Jan 2, 1000

    democritus

    democritus
    500 B.C.
    What did he do? He beleived that all mtter consist of extremly small particles that couldn't be seperated
    How did he prove it? In that time all he had to do was say it and they believed it.

  • John Dalton

    John Dalton
    What did he do? He proved that all atoms from the same element have the same mass and atons from diffrent elements have a diffrent mass.
    How did he prove it? He messured the masses of elements that combined when a compound forms.

  • Niels Bohr

    Niels Bohr
    What did he do? Bohr showed electrons mve in a fixed orbit around the nucleus.
    How did he prove it?When electrons obsorb energy they move to a higher energy level.

  • J.J. Thomson

    J.J. Thomson
    What did he do? He prove that objects with the same charge repeal and objects with the opposite charge attract.
    How did he prove it? Thomson's experiments provided the first evidence that atoms are made from even smaller particles.

  • Albert Einstein

    Albert Einstein
    what did he do? He Said Light trvels in waves.
    How did he prove it? He proved it by using the formula E=mc squared.

  • Ernest Rutherford

    Ernest Rutherford
    What did he do? He proved uranium emits fast moving particles that have a positive charge.
    How did he prove it? He show all of an atom'spositive charge is consentrated in the nucleus.

  • Hantaro Nagaota

    Hantaro Nagaota
    What did he do? Hantaro suggested that an atom has a central necleus.
    How did he prove it? He showed that the electrons move like saturns rings.

  • James Chadwick

    James Chadwick
    What did he do? He designed an experiment to show that nertons exist.
    How did he prove it? The charge object in the experiment didn't deflect the path.

  • Erwin Schrodinger

    Erwin Schrodinger
    What did he do? He help to dicover the electron cloud model.
    How did he prove it? He used a mathmatical equation.

  • Thomas Fermi

    Thomas Fermi
    What did he do? He use netrons as projectiles. he found the slower it moves the more of an impact it has.
    How did He prove it? He use a mathmatical formula.

  • Louis De Brogile

    Louis De Brogile
    What did he do? He showed moving particles like electrons have some property waves.
    How did he prove it?he used math to show the waves of the moving electrons.