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B.Sc. courses in Hindi - Basics of Special Theory of Relativity (2018) Basics of Quantum Mechanics (2019) Advanced Course on the Special Theory of Relativity (2020) Classical Electromagnetism - Electrostatics (2020) Classical Mechanics (2021) The Story of Photoelectric Effect (2021)
The protoscience of chemistry, and 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 ...
The more general name for the Indian science of alchemy or proto-chemistry is Rasaśāstra (रसशास्त्र in Sanskrit), or "The Science of Mercury," in Nepali, Marathi, Hindi, Kannada and several other languages. Early Indian alchemical texts discuss the use of prepared forms of mercury or cinnabar (see samskaras).
[1] [2] Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combined without reacting, they may form a chemical mixture. [3] If a mixture is separated to isolate one chemical substance to a desired degree, the resulting substance is said to be chemically pure. [4]
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.
Natural carbon is a mixture of 12 C (about 98.9%), 13 C (about 1.1%) and about 1 atom per trillion of 14 C. Most (54 of 94) naturally occurring elements have more than one stable isotope. Except for the isotopes of hydrogen (which differ greatly from each other in relative mass—enough to cause chemical effects), the isotopes of a given ...
Prafulla Chandra said that it was a new chapter in life that started with the unanticipated discovery of mercurous nitrite (NOT mercurous nitrate). [14] Prafulla Chandra, in 1896, noticed the formation of a yellow crystalline solid with the reaction of excess mercury and dilute nitric acid .
[1] [2] The Munshi-Ayyangar formula declared (i) Hindi to be the "official language" of India's federal government; (ii) English to be an associate official language for 15 years during which Hindi's formal lexicon would be developed; and (iii) the international form of the Hindu–Arabic numerals to be the official numerals.