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  2. A History of Hindu Chemistry - Wikipedia

    en.wikipedia.org/wiki/A_History_of_Hindu_Chemistry

    A History of Hindu Chemistry. A History of Hindu Chemistry is a two-volume book authored by Prafulla Chandra Ray, who was Professor of Chemistry at Presidency College, Kolkata, and published in the first decade of the twentieth century. Volume 1 was published in 1902 and Volume 2 in 1909. Both volumes were published by Williams and Norgate, London.

  3. History of chemistry - Wikipedia

    en.wikipedia.org/wiki/History_of_chemistry

    The protoscience of chemistry, alchemy, was unsuccessful in explaining the nature of matter and its transformations. However, by performing experiments and recording the results, alchemists set the stage for modern chemistry. The history of chemistry is intertwined with the history of thermodynamics, especially through the work of Willard Gibbs.

  4. Chemistry - Wikipedia

    en.wikipedia.org/wiki/Chemistry

    Chemistry is the scientific study of the properties and behavior of matter. 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.

  5. Fifty Shades of Grey - Wikipedia

    en.wikipedia.org/wiki/Fifty_Shades_of_Grey

    Fifty Shades Darker. Fifty Shades of Grey is a 2011 erotic romance novel by British author E. L. James. [1] It became the first instalment in the Fifty Shades novel series that follows the deepening relationship between a college graduate, Anastasia Steele, and a young business magnate, Christian Grey. It contains explicitly erotic scenes ...

  6. Central Board of Secondary Education - Wikipedia

    en.wikipedia.org/wiki/Central_Board_of_Secondary...

    www .cbse .gov .in. The Central Board of Secondary Education ( CBSE) is a national level board of education in India for public and private schools, controlled and managed by the Government of India. Established in 1929 by a resolution of the government, the Board was an experiment towards inter-state integration and cooperation in the sphere ...

  7. Hindi - Wikipedia

    en.wikipedia.org/wiki/Hindi

    Hindi. Modern Standard Hindi, [a] commonly referred to as Hindi, [c] is an Indo-Aryan language from the Indo-European language family that serves as the lingua franca of the Hindi Belt region encompassing parts of northwestern, central, eastern, and western India.

  8. List of Indian inventions and discoveries - Wikipedia

    en.wikipedia.org/wiki/List_of_Indian_inventions...

    Pingala found the number of metres that had long notes and short notes; this is equivalent to finding the binomial coefficients. Jain texts define five different types of infinity – the infinite in one direction, the infinite in two directions, the infinite in area, the infinite everywhere, and the infinite perpetually.

  9. Caste system in India - Wikipedia

    en.wikipedia.org/wiki/Caste_system_in_India

    The caste system in India is the paradigmatic ethnographic instance of social classification based on castes. It has its origins in ancient India, and was transformed by various ruling elites in medieval, early-modern, and modern India, especially in the aftermath of the collapse of the Mughal Empire and the establishment of the British Raj.