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  2. Prafulla Chandra Ray - Wikipedia

    en.wikipedia.org/wiki/Prafulla_Chandra_Ray

    [3] The Royal Society of Chemistry honoured his life and work with the first ever Chemical Landmark Plaque outside Europe. He was the founder of Bengal Chemicals & Pharmaceuticals, India's first pharmaceutical company. He is the author of A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century (1902).

  3. Light - Wikipedia

    en.wikipedia.org/wiki/Light

    where θ 1 is the angle between the ray and the surface normal in the first medium, θ 2 is the angle between the ray and the surface normal in the second medium and n 1 and n 2 are the indices of refraction, n = 1 in a vacuum and n > 1 in a transparent substance.

  4. Crystallography - Wikipedia

    en.wikipedia.org/wiki/Crystallography

    The first X-ray diffraction experiment was conducted in 1912 by Max von Laue, [7] while electron diffraction was first realized in 1927 in the Davisson–Germer experiment [8] and parallel work by George Paget Thomson and Alexander Reid. [9] These developed into the two main branches of crystallography, X-ray crystallography and electron ...

  5. Chemistry - Wikipedia

    en.wikipedia.org/wiki/Chemistry

    Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.

  6. Physical chemistry - Wikipedia

    en.wikipedia.org/wiki/Physical_chemistry

    The key concepts of physical chemistry are the ways in which pure physics is applied to chemical problems. One of the key concepts in classical chemistry is that all chemical compounds can be described as groups of atoms bonded together and chemical reactions can be described as the making and breaking of those bonds. Predicting the properties ...

  7. Chemistry education - Wikipedia

    en.wikipedia.org/wiki/Chemistry_education

    Chemistry education (or chemical education) is the study of teaching and learning chemistry. It is one subset of STEM education or discipline-based education research (DBER). [1] Topics in chemistry education include understanding how students learn chemistry and determining the most efficient methods to teach chemistry.

  8. Radiation chemistry - Wikipedia

    en.wikipedia.org/wiki/Radiation_chemistry

    Radiation chemistry is a subdivision of nuclear chemistry which studies the chemical effects of ionizing radiation on matter. This is quite different from radiochemistry , as no radioactivity needs to be present in the material which is being chemically changed by the radiation.

  9. Lessons in Chemistry (miniseries) - Wikipedia

    en.wikipedia.org/wiki/Lessons_in_Chemistry...

    Lessons in Chemistry is an American historical drama miniseries created by Lee Eisenberg, based on the novel of the same name by Bonnie Garmus. It stars Brie Larson as chemist Elizabeth Zott who begins hosting her own feminist cooking show in 1960s America.