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Science Timeline

Democritus-Greece- 460 BC - 370 BC Argues that atoms had several properties including size, shape and maybe weight.



Aristotle-Greece- 384 BC - 322 BC He thought that the five element were fire, earth, air, water and a fifth one named aether which makes up the heavenly bodies like planets and stars.



Galileo Galilei-Italy- February 15 1604- January 8 1642 Galileo played a major role in the scientific revolution. His achievements include the first studies of excellerated motion, the improvement of the telescope and the consequent astronomical observations. His observations and findings are taught at all high schools throughout the world.



John Dalton-English- Sept 6, 1776 July 27, 1844 An English chemist, meteorologist, and physicist who is known for creating the atomic theory which states that all elements are made up of atoms, all atoms in the same element are identical, atoms in one element are different from those in another, atoms in one element can combine with those of another to make a compound, and that atoms cannot be created, divided or destroyed.



Wilhelm Roentgen - German- March 2, 1845 - Feb 10,1923 Won a Nobel prize for discovering x-rays in 1895 by making sure that his discharge tube was enclosed and sealed making sure no light could get through and the rays became fluorescent, when he put his wife's hand on a plate and put it in the path of the rays he could see an image of the bones in her hand and a shadow representing her ring.



Henri Becquerel-French- Dec 15, 1852 -Aug 25 1908 Accidentally discovered radio activity and won a noble prize in physics



J.J. Thomson - British- Dec 18, 1856 – Aug 30, 1940 Came up with plum pudding model which states that an atom is like plum pudding in which there are negative charged electrons surrounded by a soup of positive charge to balance it out.



Marie Curie-Polish – France-Nov 7, 1867 – July 4, 1934 One of only two people to win the Nobel prize in two fields, discovered radioactive uranium in pitchblende.



Robert Millikan - American - March 22 1868-December 19 1953 won the 1923 Nobel prize for his measurement of the charge on the electrons and for his work on the photoelectric effect.



Ernest Rutherford - Scotland- August 30 1871- October 19 1937 Known as the "father" of nuclear physics, Rutherford pioneered the orbital theory of the atom with the gold foil experiment.



Albert Einstein - German- March 14, 1879- April 18 1955 Is best known for his theory of relativity and figuring out that E=MC^2. HE won a Nobel prize in 1921 for his "for his services to Theoretical Physics." Mostly for discovering the law of photoelectrc effect.



Neils Bohr-English - October 7 1885- November 18 1962 He received a Nobel prize in 1922 for making fundamental contributions to understanding atomic structure and quantum mechanics.



Erwin Schrodinger - Austrian, Irish- August 12 18887-January 1961 Received a Nobel prize for his contributions to quantum mechanics, especially the Schroinger equation which describes the space and time dependence of quantum mechanical systems.



Jams Chadwick - Englsih- October 20 1891-July 24 1974 A Nobel laureate who is best known for his discovering the neutron.



Werner Heisenberg -German- December 5 1901-February 1 1976 A Nobel winner in physics and one of the founders of quantum mechanics. He is mostly known for discovering a principal of modern physics (Heisenberg uncertainty principle)




 * World Events.**

__Ancient__

- Trojan war. - Persian wars. - Rome allowed people to get pure drinking water for the first time.

__500 - 1800__

- Edgar becomes the first official king of England. - The Chinese calculate the length of the year to be around 365 days. - People discovered that there were rings surrounding Saturn.

__1800 - 1875__

- Otto the first tries to annex Crete. - Royal Navy tries out its propeller powered ship called the H.M.S Rattler against old paddle propelled ships. - News of the revolution in Paris reaches Vienna.

__1875 - 1900__

- Serbia declares war on Ottoman empire. - Queen Victoria is proclaimed empress of India. - Zulu empire ends after Britain kills them in a bloodbath.

__1900 - 1915__

- Queen Victoria dies in her Osborne palace. - American marines occupy the Dominican Republic to restore order. - Britain, France and Italy sign a treaty to stop the blockades of Venezuelan ports.

__1915 - 1950__

- German submarine hits the British passenger ship, the Lusitania with a torpedo and sinks it. - Britain withdraws forces from Gallipoli. - British air force is created.

__1950- Present__

- Chinese army invades Lhasa and secures control over Tibet. - Alaska and Hawaii become the 49th and 50th state. -Terrorists hijack American passenger planes and crash them into the World Trade Center and the Pentagon.


 * Bibliography.**

www.answers.com www.nobelprize.com www.wikipedia.com (pictures) http://reich-chemistry.wikispaces.com/Honors+Art+Pieces