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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.
Description: This book explained Dalton's theory of atoms and its applications to chemistry. Importance: The book was one of the first to describe a modern atomic theory, a theory that lies at the basis of modern chemistry. [3]: 251 It is the first to introduce a table of atomic and molecular weights.
These plots were first introduced in a 1970 paper by R. A. More O’Ferrall to discuss mechanisms of β-eliminations [2] and later adopted by W. P. Jencks in an attempt to clarify the finer details involved in the general acid-base catalysis of reversible addition reactions to carbon electrophiles such as the hydration of carbonyls.
Sir Christopher Kelk Ingold BEM FRS [1] (28 October 1893 – 8 December 1970) was a British chemist based in Leeds and London. His groundbreaking work in the 1920s and 1930s on reaction mechanisms and the electronic structure of organic compounds was responsible for the introduction into mainstream chemistry of concepts such as nucleophile, electrophile, inductive and resonance effects, and ...
Subject panels in physics, chemistry, biology and general science developed new syllabi for 'O' and 'A' levels which were presented to the Secondary Schools Examination Council in 1960. [1] The Staff Inspector for Science, R. A. R. Tricker, criticised the physics syllabus as overly theoretical [ 2 ] and a year's practical trial of the material ...
Margaret "Maggie" Lowe Benston (1937–1991) was a professor of chemistry, computing science, and women's studies at Simon Fraser University in Vancouver, British Columbia, Canada. [1]
The 1970s witnessed an explosion in the understanding of solid-state physics, driven by the development of the integrated circuit and the laser. The evolution of the computer produced an interesting duality in the physical sciences at this period — analogue recording technology had reached its peak and was incredibly sophisticated.
August 31 – Solar eclipse of August 31, 1970: An annular solar eclipse is visible in Oceania, and is the 14th solar eclipse of Solar Saros 144. September 20 – Luna 16 lands on the Moon and lifts off the next day with samples, landing back on Earth September 24.