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  2. Natural experiment - Wikipedia

    en.wikipedia.org/wiki/Natural_experiment

    This study was an example of a natural experiment, called a case-crossover experiment, where the exposure is removed for a time and then returned. The study also noted its own weaknesses which potentially suggest that the inability to control variables in natural experiments can impede investigators from drawing firm conclusions.' [12]

  3. Timeline of the history of the scientific method - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the_history_of...

    1021 – The astronomer, physicist and mathematician Ibn al-Haytham combines observations, experiments and rational arguments in his Book of Optics. c. 1025 – The scholar al-Biruni develops experimental methods for mineralogy and mechanics, and conducts elaborate experiments related to astronomical phenomena.

  4. Natural science - Wikipedia

    en.wikipedia.org/wiki/Natural_science

    Systematic data collection, including discovery science, succeeded natural history, which emerged in the 16th century by describing and classifying plants, animals, minerals, and so on. [4] Today, "natural history" suggests observational descriptions aimed at popular audiences. [5]

  5. History of scientific method - Wikipedia

    en.wikipedia.org/wiki/History_of_scientific_method

    The history of scientific method considers changes in the methodology of scientific inquiry, as distinct from the history of science itself. The development of rules for scientific reasoning has not been straightforward; scientific method has been the subject of intense and recurring debate throughout the history of science, and eminent natural philosophers and scientists have argued for the ...

  6. Scientific method - Wikipedia

    en.wikipedia.org/wiki/Scientific_method

    The history of scientific method considers changes in the methodology of scientific inquiry, not the history of science itself. The development of rules for scientific reasoning has not been straightforward; scientific method has been the subject of intense and recurring debate throughout the history of science, and eminent natural philosophers and scientists have argued for the primacy of ...

  7. History of science - Wikipedia

    en.wikipedia.org/wiki/History_of_science

    The nature of the history of science is a topic of debate (as is, by implication, the definition of science itself). The history of science is often seen as a linear story of progress [27] but historians have come to see the story as more complex.

  8. Timeline of scientific discoveries - Wikipedia

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

    The timeline begins at the Bronze Age, as it is difficult to give even estimates for the timing of events prior to this, such as of the discovery of counting, natural numbers and arithmetic. To avoid overlap with timeline of historic inventions , the timeline does not list examples of documentation for manufactured substances and devices unless ...

  9. 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.