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Artigo sobre os primeiros estudos na área

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Os primeiros estudos na área, incluindo sua contextualização histórica e da época

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Os primeiros estudos na área, incluindo sua contextualização histórica e da época

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Este artigo oferece um resumo abrangente dos primeiros estudos científicos sobre radiação, contextualizando-os historicamente. Explora os métodos metodológicos empregados naquela época

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A descoberta que marcou o início da construção do conceito de radiação

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A descoberta que marcou o início da construção do conceito de radiação

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Em 1875 descobriu os raios catódicos ao realizar experimentos com descargas elétricas

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Sir William Crookes , (born June 17, 1832, , Eng.-died April 4, 1919, London), British chemist and physicist noted for his discovery of the element thallium and for his cathode-ray studies, fundamental in the development of atomic physics .

After studying at the Royal College of Chemistry, London, Crookes became superintendent of the meteorological department at Radcliffe Observatory, , in 1854, and the following year gained a post at the College of Science in Chester, Cheshire. Having inherited a large fortune from his father, he devoted himself from 1856 entirely to scientific work of various kinds at his private laboratory in London. His researches on electrical discharges through a rarefied gas led him to observe the dark space around the cathode, now called the Crookes dark space. He demonstrated that cathode rays travel in straight lines and produce phosphorescence and heat when they strike certain materials. He invented many devices to study the behaviour of cathode rays, but his theory of radiant matter, or a fourth state of matter, proved incorrect in many respects.

With the introduction of spectrum analysis by R.W. Bunsen and G.R. Kirchhoff, Crookes applied the new technique to the study of compounds. In 1861 he discovered in some seleniferous deposits. He continued work on that new element, isolated it, studied its properties, and in 1873 determined its atomic weight .

During his studies of thallium, Crookes discovered the principle of the Crookes radiometer , a device that converts light into rotary motion. The principle of this radiometer has found numerous applications in the development of sensitive measuring instruments. Crookes was knighted in 1897.

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Sir William Crookes , (born June 17, 1832, , Eng.-died April 4, 1919, London), British chemist and physicist noted for his discovery of the element thallium and for his cathode-ray studies, fundamental in the development of atomic physics .

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Sobre Roentgen e um quais foram os métodos utilizados para a descoberta dos raios X

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Marie Curie e Pierre Curie, aprofundando os trabalhos iniciados por Becquerel, descobriu outros dois elementos químicos que também eram capazes de emitir radiação

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Pierre e Marie Curie e seu trabalho pioneiro no estudo da radioatividade, em 1898.

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How madam marie curie and pierre curie discovered radioactivity?||ANIMATION||RADIOACTIVITY

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Apesar de ser um físico, recebeu o Nobel de Química de 1908, por suas investigações sobre a desintegração dos elementos e a química das substâncias radioativas

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O Projeto Manhattan: Uma mancha no conceito da radiação

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O Projeto Manhattan: Uma mancha no conceito da radiação