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Atomic Theory Timeline !!

Atomic Theory Timeline (:
by

Kendralia McCray

on 8 February 2013

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Transcript of Atomic Theory Timeline !!

The Atomic Theory Timeline Project 1. 3 Scientists from each time period ... Ancient Greek
Aristotle, 384-322 B.C., Stagirus. Aristotle emphasized that the nature consists of four elements: air, Earth, fire, & water.
Leucippus; Atomism,5th century B.C.
Democritus, 460-370 B.C., founder of Atomic Theory. 466-1700
Nicholas Copernicus; 1473-1543, Feb. 19, 1473 in Frauenburg, East Prussia. Astronomer who proposed that the planets have the Sun as the fixed point to which their motions are to be referred. Also proposed that the theory called The Heliocentric.
Gailileo Galilei: 1565-1642, he discovered with the telescope revolutionized astronomy and paved the way for the acceptance of the Copernican heliocentric system.
Issac Newton: Born January 4, 1643-1727, he was known for the Mathematical Principles of Natural Philosophy in 1687, often shortened to Principia Mathematica or "the Principia." 1770-1800
Antione Baum was born February 26, 1728, in Senlis. He was known for the invention of the Baume Scale Hydrometer and technical processes.
John Dalton: 1776-1844 in Eagle field, Cumbria. He created his own Atomic Theory.
Amedeo Avogadro: 1776-1856, August 9, in Turin. He was known for his theory of Molarity and moleculer weight. He was also the first person to calculate the number of entitles in atoms. 1800-1875
Wilhelm Conrad Rontgen: 1845-1923, southern Rhine of Germany. He discovered x-ray in 1895.
Henri Becquerel: 1852-1908; from Paris. He was famous for his experiments to connection between x-rays a natural occurring phosphorescence.
J.J. Thomas: 1856-1940, from Manchester, England. Awarded the Nobel Prize in Chemistry for his discovery of alpha particles, positively charged particles emitted from radioactive elements. Continued ....
Marie Curiel: 1867-1908, from Warsaw, Poland in November. He found two new elements, polonium, and radium and how to separate them from non-radioactive substances; Nobel Prize in 1903.
Robert Milikan: 1868-1953, from Illinois. He discovered that electrons negative charge; Nobel Prize in 1923. Also, Milikan Oildrop experiments. 1875-1900
Erwin Schrodinger (1877-1961) in Vienna. He created the Electron Cloud Model.
James Chadwick: 1891-1974, from Manchester, England. He discovered the neutron.
Niels Bohr: October 7, 1885 - November 18, 1962, he was given the Nobel Prize, in 1992 for great contribution to the understanding of atomic structure and quantum mechanics first Atomic Bomb. Continued ....
Werner Heisenburg: 1901-1976, December 5th, at Wurzburg. 1925 quantum mechanics. Discovered the allotropic form of hydrogen.Nobel prize in 1932.
Gerhard Herzberg: 1904-1999. Germany, 1971. Nobel Prize for atomic and moleculer spectroscopy.
Melvin Calvin: 1911-1997. April 8th, discovered of the Calvin Cycle and won the Nobel Prize in 1961. 1915-2012
Jan Boldingh: 1915-1998. January 3. He introduced a number of new analytic techniques.
Sir Derek Barton: 1918-1998, September 8, Nobel Prize of Laureate for the contributions to the developement of the concept of conformation and its application in chemistry.
Rosalind Franklin: 1920-1958. July 25th, contributes to the understanding of the fine structures of DNA, viruses, coal, and Graphite x-ray diffraction images of DNA, 1953. 2. Modelsssss (: The small, spherical, solid, indivisible model of the atom .... Electron cloud model !!!!!! Plum Pudding Model (: Rutherford-Bohr model !!! & the Planetary Model 3. Three major world events Ancient
Eratosthenes accurately calculates the diameter of Earth, ca. 300 B.C.
The Chinese first produce paper, 160 B.C.
Glass blowing is invented ca. 90 B.C. 500-1800
Black plague devastates Europe in 1340s
Columbus sails in 1492
French Revolution in 1789. 1800-1875
The university of Berlin is established in 1810
Napoleon's defeat at Waterloo in 1815
Charles Darwin publishes Origin of Species in 1859. 1875-1900
The first commercial telephone exchanged is made in New Haven, Connecticut during 1878
The U.S, gains control of Cuban, Puerto Rico, and the Philippines after the Spanish-American War in 1898. 1900-1915
Russian Revolution in 1905
Titanic sank in 1912
Election of 1912 1915-1950
Robert Goddard makes the first flight of a ;liquid fueled rocket in 1926
Atomic Bomb is dropped on Hiroshima in 1945
Korean War begins in 1950 1950- Current
Hubble telescope is launched in 1990
World Trade Center attacked in 2001; 911
Red Sox win first world series title since 1918. The End !!!!!!!!!!! By: Kendralia McCray
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