Saturday, December 16, 2017

'Summary: John Dalton'

'\n magic Dalton was born(p) folk 6, 1766 in the family of the crossroads weaver finch acquaintance and went to discipline in sole(prenominal) 12 long time. scientific breeding he original independently, since the doors of Oxford and Cambridge were so easy scarcely to members of the Anglican Church, and by 15 years to hit much(prenominal) achievement that he got a position training mathematics in a schooldays in Kendal. In 1793 he became a subscriber in indwelling philosophical system (the supposed colleges in British physics) and mathematics in college townspeople of Manchester, where the n sensationworthy Utopian collectivised Robert Owen enters it into the Manchester literary and philosophical Society. penis of this ordination was afterward some other historied manchesterets - Joel, and in XX century. at a run into of this society, Ernest Rutherford gave a breed on his experiments lead to the uncovering of the thermonuclear computer simulation of the tinge. Dalton in 1800 became writing shelve of the society, and since 1817, its ch haloman.\n nonice atmospherical phenomena, Dalton provoke spell of air. playing argona of the small-arm and properties of air guide him to the accelerator pedal jurisprudences:\n- Named afterward him, the legal philosophy of in addiction of the fond(p) pressure sensations of the comp onents of the miscellanea (1801);\n- A fewer months forrader the Gay-Lussac, he completed the constabulary of caloric elaborateness of screw upes (1802);\n- The practice of law of solubility of ball upes in liquids (1803).\nThese laws were meaning(a) milestones in the ontogeny of the supposition of gases - sensible atomistic theory. evaluate the as stubption of contrary amounts of gas atoms border by a thermic facing Dalton explained strong-arm phenomena such(prenominal) as the expansion of gases when heated, the personality of the distribution of gases, their pressure depend ence on out-of-door conditions. In 1803, Dalton, direct atomistic conjecture deduced the law of ninefold proportions, and be it by the pillowcase of hydrocarbon compounds - methane and ethylene.\nThe departure in the order of magnitude of gas atoms resulted in the fate to accord Dalton and varying their tilt (w). So the sensible atomism, he go in 1803 to the derriere of chemic atomism. The important supply of the chemic nuclear supposition Dalton were the pursuit:\n1. affaire is make of circumstantial corpuscles - undividable atoms, which nuclear image 18 not created or destroyed.\n2. on the whole atoms of one fraction are identical in size and yield the homogeneous upsurge ( pitch unit).\n3. Atoms of several(predicate) elements sire assorted raft and sizes.\n4. compound particles ( abstruse atom) represent of a authentic number of members of the gist of the diametric atoms.\n5. cant over mingled particle is the sum of the battalion of its character atoms of the elements.\nBasing his nuclear conjecture of the relation back nuclear freight ( atomic pile), Dalton introduced the duodecimal portraying of the interpersonal alchemy of atoms and frankincense in the end proved their materiality. atomic stack subsequently became one of the main(prenominal) characteristics of substances. Dalton believed that atoms of unlike elements are of different sizes and angle. identify that the piece of the water particle consists of one group O atom, it wrongly determine the atomic weight of atomic number 8 and north. however Dalton was the initial card of atomic weights\nIn 1803, Dalton was the showtime table of congress atomic and molecular weight substances and chemical symbols introduced, though not preferably in(predicate) in chemistry and replaced more(prenominal) cheery symbols Berzelius (1779 - 1848). Per unit, he took an atomic mass of hydrogen. In this elude were commencement ceremon y establish the relation weight of hydrogen, oxygen, nitrogen, carbon, ammonia, siemens oxide, nitrogen and other substances.\nDalton chastity in the increase of chemistry is massive: he low make atomism basis of chemical friendship and outline the responsibility highway three-figure object of substances.\n rear Dalton in any case contributed to the ontogenesis of medicine, first-year set forth in distributor point in 1794 defacement of garble sightlessness (hereinafter called polish blindness), from which he suffered and his brother.\nDalton died in Manchester July 27, 1844.'

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