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Jan 1, 1000
Democritus
What questions were being asked?Pythagoras
On the Disposition of the Wise Man
On the Things in Hades
Tritogenia
On Manliness or On Virtue
The Horn of Amaltheia
On Contentment
Ethical Commentaries -
John Dalton
When was this person’s work done?1800-1844
What questions were being asked?what happens if we freeze liquids
Whose work influenced this person?
What was proposed by this person about the atom? the atomic theory Include the four ideas of Dalton’s atomic theory
Any other interesting things?
Elements are made of extremely small particles called atoms.
Atoms of a given element are identical in size, mass, and other properties; atoms of different elements differ in size, mass, and other properties -
Dmitri Mendeleev
When was this person’s work done?1856-1907
What questions were being asked?properties of elements
Whose work influenced this person?not sure
What was developed by this person? the periodic
Any other interesting things?He traveled all over russia -
JJ Thomson
When was this person’s work done?
What questions were being asked?
Whose work influenced this person?
What particle did he discover? electron
Describe the experiment performed by this person.when he used a magnet to deflect the cathode ray in the crookes tube to show negative also
Describe the model of the atom proposed by this person a cycle that is positively charged with electrons inside of it
Any other interesting things? -
Max Planck
When was this person’s work done?April 23, 1858
What questions were being asked? black body radiation
Whose work influenced this person?albert einstein
Describe his experiment.
What was the theory proposed by this person? heat theory
Any other interesting things? -
Niels Bohr
When was this person’s work done?1903-1962
What questions were being asked?
Whose work influenced this person?Werner Heisenberg
Wolfgang Pauli
Paul Dirac
Lise Meitner
Max Delbrück Describe his model of the atom. The nucleus than 3 shells
Any other interesting things?had 6 kids 2 died others where successful Eiels worked on the manhattan project -
Ernest Rutherford
When was this person’s work done?1907-1937
What questions were being asked?distance which electromagnetic waves were detected
Whose work influenced this person?JJ Thomson
What was observed by this person? The alpha radiation was hydrogen ions
Describe his experiment. He changed nitrogen into oxygen
Describe his model of the atom. The atomic symbol
Any other interesting things? in the manchester university was radiation for his experiment -
Robert Millikana
When was this person’s work done?1910-1945
What questions were being asked?used electricity to change the flow of oil
Whose work influenced this person? Albert Einstein
What was measured by this person? the electromagnetic wave
Describe his experiment. He used an electromagnetic charge to find the charge of and electron
Any other interesting things? -
James Chadwick
When was this person’s work done?1932-1959
What questions were being asked?what can and atom do
Whose work influenced this person? Ernest Rutherford
What was proposed about atoms by this person?the neutron Any other interesting things? -
Erwin Schrodinger
When was this person’s work done?1939-1961
What questions were being asked? problems of genetics
Whose work influenced this person?Arthur Schopenhauer
What was developed by this person?ihposeidon=Hposeidon
Describe his model of the atom. nucleus 1s 2s 2p 3s
Any other interesting things?His wife died 4 years later after him, live with two women and a cat milton at the same time, wrote a book What is Life? -
Murray Gell-Mann
When was this person’s work done?1947-1993
What questions were being asked? what are protons,electrons and neutrons made of.
Whose work influenced this person? him self
What was proposed by this person? played a large role in the string theory Quarks
Any other interesting things? when to yale at 15.