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Jan 1, 1450
Gutenberg printing press
historic event -
Jan 1, 1492
discovery of the Americas
Historic event -
Jan 1, 1527
Reformation of the Catholic Church in England
Historic Event -
Galileo Convicted of heresy
Historic event -
Joseph Priestley
disovered oxygen,carbon monoxide, and nitrogen dioxide -
Antoine Lavoisier
law of conservation of mass -
Alessandro Volta
electrochemical cell and batteries -
John Dalton
proposed the "atomic theory" with spherical atoms based upon measurable properties of mass -
Michael Faraday
1832-1833 electricity and electrochemistry -
Cival War
Historic Event -
Loius Pasteur
pasteurization -
Alfred Nobel
dynamite -
first transcontinental railroad in US
Historic event -
Eugen Goldstein
used a CRT to study "canal rays" which had electrical properties opposite of an electron -
J.J. Thomson
determined the charge to mass ratio of an electron -
Guglielmo Marconi
radio, wireless signal in 1899, radio telegraph in 1902 -
Henri Becquerel
radioactivity -
Ernest Rutherford
established that the nucleus was dense and electrons were outside the nucleus. -
Max Planck
used the idea of quanta to explain hot glowing matter -
Albert Einstein
Published E=mc(squared) -
Robert Millikan
oil droped experiment determined the charge and mass of an electron -
Marie Curie
Radioactivity -
Henry Moseley
determined the charges on the nuclei of most atom. the atomic number equals the mass of the protons. -
Assassination of Archduke Ferdinand
Historic Event -
Bolshevik Revolution
Historic Event -
Treaty of Versailles
Historic Event -
Neils Bohr
developed an explaination of the atomic structure and his model had electrons in shells and orbitals -
Sir Frederick Banting
Isolated Insulin -
Werner Heisenberg
Proposed Principle of Indeterminancy -
Philo Farnsworth
TV -
Erwin Schrodinger
Viewed electrons as coninuous clouds and introduced "wave mechanics" as a mathematical model of the atom -
Wallace Carothers
neoprene and nylon 1930's -
James Chadwick
Discovered the neutron -
Leo Szilard
nuclear chain reaction -
Bombing of Pearl Harbor
Historic Event -
Leo Szilard
Atomic Bomb -
First Cellular Phone
Historic Event -
Kary Mullis
polymearse chain reaction -
Initial concept for world wide web
Historic Event