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The Early Early Years of Chemistry

The Early Early Years of Chemistry. Throughout history people have tried to alter their environment to improve their way of life. Such “tinkering” has often lead to unexpected results. 4000 B.C. Mesopotamian Cultures Irrigation. 2000 B.C. Egyptians Metallurgy and Embalming. 400 B.C.

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The Early Early Years of Chemistry

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  1. The Early Early Years of Chemistry Throughout history people have tried to alter their environment to improve their way of life. Such “tinkering” has often lead to unexpected results.

  2. 4000 B.C. • Mesopotamian Cultures • Irrigation

  3. 2000 B.C. • Egyptians • Metallurgy and Embalming

  4. 400 B.C. • Greeks • Understanding of Matter

  5. 400 A.D. • India • Steel

  6. 600 A.D. • Chinese • Gunpowder

  7. 1000 A.D. • European Alchemists

  8. Alchemy • Many types of Alchemists: 1. pursued Aristotle’s ideas 2. tried changing metal to gold 3. searched for fountain of youth • Many actually made discoveries that form the basis of modern chemistry

  9. What 2 needs has this “tinkering” fulfilled? • To understand the world around them. • To improve and protect our lives.

  10. Now lets look at some more modern chemistry discoveries!!

  11. 1774 Priestley 1777 Lavoisier 1811 Avogadro 1818 Gay-Lussac 1844 Goodyear 1867 Nobel 1869 Mendeleev 1869 Hyatt Discovers Oxygen Discovers Nitrogen 1 mole = 6.02E23 Behavior of gases Discovers Rubber Invents Dynamite 1st Periodic Table Invents plastics Modern Discoveries

  12. 1895 Roentgen 1896 Becquerel 1896 Thomson 1911 Curie Discovered X-radiation Discovers Radioactivity Discovers Electrons Discovers Radium Modern Discoveries (cont)

  13. 1919 Rutherford 1928 Flemming 1932 Chadwick 1944 Kistiakowsky Determines ½ life of radiation Discovers Penicillin Discovers Neutron Developes detonating device Modern Discoveries (cont)

  14. 1945 Lawrence 1951 Woodward Creates synthetic elements Synthesizes Cholesterol Modern Discoveries (cont)

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