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Giant Periodic table of the Elements Poster



The periodiс table of the chemical elements (also Mendeleev's table, periodic table of the elements or just periodic table) is a tabular display of the chemical elements. Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869, who intended the table to illustrate recurring ("periodic") trends in the properties of the elements. The layout of the table has been refined and extended over time, as new elements have been discovered, and new theoretical models have been developed to explain chemical behavior. The periodic table is now ubiquitous within the academic discipline of chemistry, providing an extremely useful framework to classify, systematize, and compare all of the many different forms of chemical behavior. The table has found wide application in chemistry, physics, biology, and engineering, especially chemical engineering. The current standard table contains 117 elements as of July 2009 In 1789, Antoine Lavoisier published a list of 33 chemical elements. Although Lavoisier grouped the elements into gases, metals, non-metals, and earths, chemists spent the following century searching for a more precise classification scheme. In 1829, Johann Wolfgang Döbereiner observed that many of the elements could be grouped into triads (groups of three) based on their chemical properties. Lithium, sodium, and potassium, for example, were grouped together as being soft, reactive metals. Döbereiner also observed that, when arranged by atomic weight, the second member of each triad was roughly the average of the first and the third. This became known as the Law of triads.[citation needed] German chemist Leopold Gmelin worked with this system, and by 1843 he had identified ten triads, three groups of four, and one group of five. Jean Baptiste Dumas published work in 1857 describing relationships between various groups of metals. Although various chemists were able to identify relationships between small groups of elements, they had yet to build one scheme that encompassed them all. German chemist August Kekulé had observed in 1858 that carbon has a tendency to bond with other elements in a ratio of one to four. Methane, for example, has one carbon atom and four hydrogen atoms. This concept eventually became known as valency. In 1864, fellow German chemist Julius Lothar Meyer published a table of the 49 known elements arranged by valency. The table revealed that elements with similar properties often shared the same valency. English chemist John Newlands published a series of papers in 1864 and 1865 that described his attempt at classifying the elements: When listed in order of increasing atomic weight, similar physical and chemical properties recurred at intervals of eight, which he likened to the octaves of music. This law of octaves, however, was ridiculed by his contemporaries.[8] Portrait of Dmitri MendeleevRussian chemistry professor Dmitri Ivanovich Mendeleev and Julius Lothar Meyer independently published their periodic tables in 1869 and 1870, respectively. They both constructed their tables in a similar manner: by listing the elements in a row or column in order of atomic weight and starting a new row or column when the characteristics of the elements began to repeat. The success of Mendeleev's table came from two decisions he made: The first was to leave gaps in the table when it seemed that the corresponding element had not yet been discovered. Mendeleev was not the first chemist to do so, but he went a step further by using the trends in his periodic table to predict the properties of those missing elements, such as gallium and germanium. The second decision was to occasionally ignore the order suggested by the atomic weights and switch adjacent elements, such as cobalt and nickel, to better classify them into chemical families. With the development of theories of atomic structure, it became apparent that Mendeleev had inadvertently listed the elements in order of increasing atomic number. With the development of modern quantum mechanical theories of electron configurations within atoms, it became apparent that each row (or period) in the table corresponded to the filling of a quantum shell of electrons. In Mendeleev's original table, each period was the same length. However, because larger atoms have more electron sub-shells, modern tables have progressively longer periods further down the table. In the years that followed after Mendeleev published his periodic table, the gaps he left were filled as chemists discovered more chemical elements. The last naturally-occurring element to be discovered was Francium (referred to by Mendeleev as eka-caesium) in 1939. The periodic table has also grown with the addition of synthetic and transuranic elements. The first transuranic element to be discovered was neptunium, which was formed by bombarding uranium with neutrons in a cyclotron in 1939 Keywords: "Periodic Table of Elements" Periodic Table of Elements Dmitri Mendeleev Antoine Lavoisier Chemist Chemicals Chemistry Physics Lab Laboratory Experiment Experiments Chart Poster August Kekulé Organic Physical Analytical Biochemist Biochemistry Biochemical Biological Biology Biologist Compound Compounds Molecule Molecular Mole Avogadro Formula Symbol "Chemical Symbol" Atom Atomic "Atomic Weight" Proton Neutron Electron Deuterium Tritium Isotope Isomer Molarity Radioactive Nucleus Orbital Spin Quantum Row Period Actinium Aluminum Americium Antimony Argon Arsenic Astatine Barium Berkelium Beryllium Bismuth Bohrium Boron Bromine Cadmium Calcium Californium Carbon Cerium Cesium Chlorine Chromium Cobalt Copper Curium Darmstadtium Dubnium Dysprosium Einsteinium Erbium Europium Fermium Fluorine Francium Gadolinium Gallium Germanium Gold Hafnium Hassium Helium Holmium Hydrogen Indium Iodine Iridium Iron Krypton Lawrencium Lead Lithium Lutetium Magnesium Manganese Meitnerium Mendelevium Mercury Molybdenum Neodymium Neon Neptunium Nickel Niobium Nitrogen Nobelium Osmium Oxygen Palladium Phosphorus Platinum Plutonium Polonium Potassium Praseodymium Promethium Protactinium Radium Radon Rhenium Rhodium Rubidium Ruthenium Rutherfordium Samarium Scandium Seaborgium Selenium Silicon Silver Sodium Strontium Sulfur Tantalum Technetium Tellurium Terbium Thallium Thorium Thulium TinTitanium Tungsten Ununbium Ununnilium Ununumium Uranium Vanadium Xenon Ytterbium Yttrium Zinc Zirconium

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USSR CCCP Cold War Soviet Union Propaganda Posters



1000's more historical vintage prints, posters, ads, and more available, CLICK HERE to visit out main site at http://www.jnniepce.com/The communist propaganda was extensively based on the Marxism-Leninism ideology to promote the Communist Party line. In societies with pervasive censorship, the propaganda was omnipresent and very efficient. It penetrated even social and natural sciences giving rise to various pseudo-scientific theories like Lysenkoism, whereas fields of real knowledge, as genetics, cybernetics, and comparative linguistics were condemned and forbidden as "bourgeois pseudoscience". With "truths repressed, falsehoods in every field were incessantly rubbed in in print, at endless meetings, in school, in mass demonstrations, on the radio". Main Soviet censorship body, Glavlit employed seventy thousand full-time staff not only to eliminate any undesirable printed materials, but also "to ensure that the correct ideological spin was put on every published item". Telling anything against the "Party line" was punished by imprisonment. "Today a man only talks freely to his wife - at night, with the blankets pulled over his head", said writer Isaac Babel privately to a trusted friend. According to Robert Conquest, "All in all, unprecedented terror must seem necessary to ideologically motivated attempts to transform society massively and speedily, against its natural possibilities. The accompanying falsifications took place, and on a barely credible scale, in every sphere. Real facts, real statistics, disappeared into the realm of fantasy. History, including the History of the Communist Party, or rather especially the history of the Communist Party, was rewritten. Unpersons disappeared from the official record. A new past, as well as new present, was imposed on the captive minds of the Soviet population, as was, of course, admitted when truth emerged in the late 1980s". An important goal of Communist propaganda was to create a new man. Schools and the Communist youth organizations, like Soviet pioneers and Komsomol, served to remove children from the "petty-bourgeois" family and indoctrinate the next generation into the collective way of life. One of schooling theorists stated: We must make the young into a generation of Communists. Children, like soft wax, are very malleable and they should be moulded into good Communists... We must rescue children from the harmful influence of the family... We must nationalize them. From the earliest days of their little lives, they must find themselves under the beneficient influence of Communist schools... To oblige the mother to give her child to the Soviet state - that is our task.". The most effective means to achieve this objective "was the denial of the victim's humanity through the process of dehumanization", "the reduction of real or imaginary enemy to a zoological state". In particular, Vladimir Lenin called to exterminate enemies "as harmful insects", "lice" and "bloodsuckers". According to writer and propagandist Maksim Gorky, "Class hatred should be cultivated by an organic revulsion as far as the enemy is concerned. Enemies must be seen as inferior. I believe quite profoundly that the enemy is our inferior, and is a degenerate not only in the physical plane but also in the moral sense". He also called to use enemy of the people as "human guinea pigs" for human experimentation in the USSR Institute of Experimental Medicine in 1933, which would be "a true service to humanity", according to him . According to The Black Book of Communism, an example of such demonizing animal rhetoric were speeches by state procurator Andrey Vyshinsky during Stalin's show trials. He said about the suspects: "Shoot these rabid dogs. Death to this gang who hide their ferocious teeth, their eagle claws, from the people! Down with that vulture Trotsky, from whose mouth a bloody venom drips, putrefying the great ideals of Marxism!... Down with these abject animals! Let's put an end once and for all to these miserable hybrids of foxes and pigs, these stinking corpses! Let's exterminate the mad dogs of capitalism, who want to tear to pieces the flower of our new Soviet nation! Let's push the bestial hatred they bear our leaders back down their own throats!" CIA estimated in 1980s that the budget of Soviet propaganda abroad was between 3.5-4.0 billion dollars. Propaganda abroad was partly conducted by Soviet intelligence agencies. GRU alone spent more than $1 billion for propaganda and peace movements against Vietnam War, which was a "hugely successful campaign and well worth the cost", according to GRU defector Stanislav Lunev [8]. He claimed that "the GRU and the KGB helped to fund just about every antiwar movement and organization in America and abroad". According to Oleg Kalugin, "the Soviet intelligence was really unparalleled. ... The KGB programs -- which would run all sorts of congresses, peace congresses, youth congresses, festivals, women's movements, trade union movements, campaigns against U.S. missiles in Europe, campaigns against neutron weapons, allegations that AIDS ... was invented by the CIA ... all sorts of forgeries and faked material -- [were] targeted at politicians, the academic community, at the public at large."

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USSR CCCP Cold War Soviet Union Propaganda Posters



1000's more historical vintage prints, posters, ads, and more available, CLICK HERE to visit out main site at http://www.jnniepce.com/ The communist propaganda was extensively based on the Marxism-Leninism ideology to promote the Communist Party line. In societies with pervasive censorship, the propaganda was omnipresent and very efficient. It penetrated even social and natural sciences giving rise to various pseudo-scientific theories like Lysenkoism, whereas fields of real knowledge, as genetics, cybernetics, and comparative linguistics were condemned and forbidden as "bourgeois pseudoscience". With "truths repressed, falsehoods in every field were incessantly rubbed in in print, at endless meetings, in school, in mass demonstrations, on the radio". Main Soviet censorship body, Glavlit employed seventy thousand full-time staff not only to eliminate any undesirable printed materials, but also "to ensure that the correct ideological spin was put on every published item". Telling anything against the "Party line" was punished by imprisonment. "Today a man only talks freely to his wife - at night, with the blankets pulled over his head", said writer Isaac Babel privately to a trusted friend. According to Robert Conquest, "All in all, unprecedented terror must seem necessary to ideologically motivated attempts to transform society massively and speedily, against its natural possibilities. The accompanying falsifications took place, and on a barely credible scale, in every sphere. Real facts, real statistics, disappeared into the realm of fantasy. History, including the History of the Communist Party, or rather especially the history of the Communist Party, was rewritten. Unpersons disappeared from the official record. A new past, as well as new present, was imposed on the captive minds of the Soviet population, as was, of course, admitted when truth emerged in the late 1980s". An important goal of Communist propaganda was to create a new man. Schools and the Communist youth organizations, like Soviet pioneers and Komsomol, served to remove children from the "petty-bourgeois" family and indoctrinate the next generation into the collective way of life. One of schooling theorists stated: We must make the young into a generation of Communists. Children, like soft wax, are very malleable and they should be moulded into good Communists... We must rescue children from the harmful influence of the family... We must nationalize them. From the earliest days of their little lives, they must find themselves under the beneficient influence of Communist schools... To oblige the mother to give her child to the Soviet state - that is our task.". The most effective means to achieve this objective "was the denial of the victim's humanity through the process of dehumanization", "the reduction of real or imaginary enemy to a zoological state". In particular, Vladimir Lenin called to exterminate enemies "as harmful insects", "lice" and "bloodsuckers". According to writer and propagandist Maksim Gorky, "Class hatred should be cultivated by an organic revulsion as far as the enemy is concerned. Enemies must be seen as inferior. I believe quite profoundly that the enemy is our inferior, and is a degenerate not only in the physical plane but also in the moral sense". He also called to use enemy of the people as "human guinea pigs" for human experimentation in the USSR Institute of Experimental Medicine in 1933, which would be "a true service to humanity", according to him . According to The Black Book of Communism, an example of such demonizing animal rhetoric were speeches by state procurator Andrey Vyshinsky during Stalin's show trials. He said about the suspects: "Shoot these rabid dogs. Death to this gang who hide their ferocious teeth, their eagle claws, from the people! Down with that vulture Trotsky, from whose mouth a bloody venom drips, putrefying the great ideals of Marxism!... Down with these abject animals! Let's put an end once and for all to these miserable hybrids of foxes and pigs, these stinking corpses! Let's exterminate the mad dogs of capitalism, who want to tear to pieces the flower of our new Soviet nation! Let's push the bestial hatred they bear our leaders back down their own throats!" CIA estimated in 1980s that the budget of Soviet propaganda abroad was between 3.5-4.0 billion dollars. Propaganda abroad was partly conducted by Soviet intelligence agencies. GRU alone spent more than $1 billion for propaganda and peace movements against Vietnam War, which was a "hugely successful campaign and well worth the cost", according to GRU defector Stanislav Lunev [8]. He claimed that "the GRU and the KGB helped to fund just about every antiwar movement and organization in America and abroad". According to Oleg Kalugin, "the Soviet intelligence was really unparalleled. ... The KGB programs -- which would run all sorts of congresses, peace congresses, youth congresses, festivals, women's movements, trade union movements, campaigns against U.S. missiles in Europe, campaigns against neutron weapons, allegations that AIDS ... was invented by the CIA ... all sorts of forgeries and faked material -- [were] targeted at politicians, the academic community, at the public at large."

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