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Jan 1, 1000
John Dalton
Discovered that atoms cannot be created, divided into small particles, or destroyed. -
Jan 1, 1000
Aristotle
Didn't think there was an atom
400 B.C. -
Jan 1, 1131
Omar Khayyam
Created geometric algebra
1048-1131 -
John Locke
The first to define the self through a continuity of consciencness. -
Antonie Lavoisier
Determined that water results from the combination of the elements oxygen and hydrogen.
1743-1794 -
William Crookes
Invented the cathode ray tube that is used in televisions -
Joseph Proust
Introduced glucose, Proust's Law, and disproved the law of definite proportions. -
Democritus
Democritis discovered the differeing properties of matter are due to size, sahpe, and movement in atoms.
1766-1844 -
Amadeo Avagadro
Contributed to the molecular theory and created Avagadro's Law.
1776-1856 -
Justus von Liebig
Discovered nitrogen as an essential nutrient to plants and created the beef boullon cube.
1803-1873 -
Madame Curie
Discovered polonium and radium. -
Henry Bessemer
Created the Bessemer Process for the manufacturing of steel.
1813-1898 -
Max Plank
Quantizied energy. -
Karl Landsteiner
First to distinguish the four main blood groups. -
Prafulla Chandra
Created India's first pharamcy and won the Nobel Prize in pharmaceuticals. -
Henri Becquerel
Discovered radioactivity. -
Ivan Povlov
Won the Nobel Prize for physiology. -
Robert Millikan
Determined the charge of the atom. -
Alfred Binet
Created the first usuable intelligence test also known as IQ.
1857-1911 -
Henry Moseley
Justification from physical laws of teh previous emprical chemical concept of the atom.
1887-1915 -
Max Born
Created quantum mechanics. -
Louis de Broglie
Hidden thermodynamics, matter and wave, particle duality, non-nulity, and variability of mass. -
Erwin Schrodinger
Created the quantum mechanical model of the atom. -
Werner Heisenberg
Awarded the Nobel Prize for physics for the creation of quantum physics. -
James Chadwick
Showed that the nucleas also contained a nuetron. -
Ernest Rutherford
Postulated the nuclear structure of the atom.
1871-1937 -
J.J. Thomson
Discovered the electron.
1856-1940 -
Albert Einstein
Developed the general theory of relativity effecting a revolution in physics.
1879-1955 -
Niels Bohr
Developed the concept of complementarity.
1933-1962 -
Salim Ali
Developed ornithology and was rewarded the second highest civillian honor.