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  2. Timeline of scientific experiments - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_scientific...

    1774 – Charles Mason: Conducts an experiment near the Scottish mountain of Schiehallion that attempts to measure the mean density of the Earth for the first time. Known as the Schiehallion experiment. 1796 – Edward Jenner: tests the first vaccine. 1798 – Henry Cavendish: Torsion bar experiment to measure Newton's gravitational constant.

  3. Timeline of chemistry - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_chemistry

    An image from John Dalton's A New System of Chemical Philosophy, the first modern explanation of atomic theory.. This timeline of chemistry lists important works, discoveries, ideas, inventions, and experiments that significantly changed humanity's understanding of the modern science known as chemistry, defined as the scientific study of the composition of matter and of its interactions.

  4. Miller–Urey experiment - Wikipedia

    en.wikipedia.org/wiki/Miller–Urey_experiment

    At the time of the Miller–Urey experiment, Harold Urey was a Professor of Chemistry at the University of Chicago who had a well-renowned career, including receiving the Nobel Prize in Chemistry in 1934 for his isolation of deuterium [21] and leading efforts to use gaseous diffusion for uranium isotope enrichment in support of the Manhattan ...

  5. History of chemistry - Wikipedia

    en.wikipedia.org/wiki/History_of_chemistry

    American mathematical physicist J. Willard Gibbs's work on the applications of thermodynamics was instrumental in transforming physical chemistry into a rigorous deductive science. During the years from 1876 to 1878, Gibbs worked on the principles of thermodynamics, applying them to the complex processes involved in chemical reactions.

  6. Timeline of scientific discoveries - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_scientific...

    2000 BC: Multiplication tables in a base-60, rather than base-10 (decimal), system from Babylon. [7] 2000 BC: Primitive positional notation for numerals is seen in the Babylonian cuneiform numerals. [8] However, the lack of clarity around the notion of zero made their system highly ambiguous (e.g. 13 200 would be written the same as 132). [9]

  7. Category:Chemistry experiments - Wikipedia

    en.wikipedia.org/wiki/Category:Chemistry_experiments

    Chemistry classroom experiments (25 P) Pages in category "Chemistry experiments" The following 9 pages are in this category, out of 9 total.

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