O que é a radiação? Veja história da descoberta e saiba como é usada

O que é a radiação? Conheça a história da descoberta e saiba como é usada

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[{"selector":"#anim-98e5b2f6-5a13-4354-b941-0a6cd5d8bbed","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-7e6a935d-9013-4d87-900f-857289d3b4a0","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-074668eb-2e64-43de-a12b-5b563da7a9b2","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-d10c0389-ef82-4540-a045-e6d04e318069","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-76c29538-9c92-4b11-b32a-594b1cf159d3","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-253b2269-4bc1-4419-83af-b075ce1455d6 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-6.318359109941498%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Tudo isso começou quando o físico alemão Wilhelm Conrad Röntgen divulgou, em 1895, a existência dos raios-X que, é importante lembrar, não têm nada a ver com radioatividade Foto/Wikimediacommons

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[{"selector":"#anim-74125705-8947-42f6-8ca4-2447ea712f9c","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-da880a19-001d-4e82-9875-cfa7a8fb66f9","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2cea47ec-579c-48fb-b135-90e423d056e7","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-41dff38c-15bb-4189-904f-755f5a51eb83","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-6722f832-acea-42e1-b8a3-9033bcd3158a","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-7e8e1262-779e-4dfc-a8c2-33e7b179025d [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-12.439903618240642%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Para testar sua hipótese, Becquerel colocou sais de urânio em uma placa fotográfica envolta em papel preto, e os expôs à luz do Sol por várias horas. A placa escureceu Divulgação/Algo Sobre

[{"selector":"#anim-5f7fd770-88b4-4762-b45c-45260b3e5a4b","keyframes":{"transform":["translate3d(-115.2381%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-4035e667-451a-4c50-80a4-3fc97cb41e38","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-fb499760-8cd9-4281-8249-7c6fc3c94d9c","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-16fb31f1-5564-459e-ac42-c2364562a797","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-4320d843-e431-459d-b6c1-99fb538292fe","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-7aac252c-4c7e-4c09-a7ba-db39bd554fe1","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2ca13fd1-fcc6-49c6-bec3-ffb323a7e836 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(6.157710239333131%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] O termo " radioatividade" foi cunhado no início do século 20 pela cientista Marie Curie, a partir de um equipamento desenvolvido por seu marido, e também cientista, Pierre Curie Bettmann/Getty Images

[{"selector":"#anim-a4b7d34a-b342-44a2-89e5-9a3ca55f1376","keyframes":{"transform":["translate3d(-115.2381%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-2b825ac4-9ab8-44d9-9170-597fe1bd62aa","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f327c949-6fdf-440d-8d23-3f8f5d351fcd","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-abeb15ca-268a-4ad1-946f-c56f5a3edf23","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-70c49832-4d52-484d-ba68-9baa11f0952e","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-f8a6da15-605b-49d7-b2fb-e3352ce6caeb","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] "A partir de um equipamento desenvolvido por Pierre, Marie pôde identificar o pitchblende [uranita], um mineral que continha urânio e outros metais mais radioativos que o próprio urânio purificado”, conta o pesquisador Fabio Luiz Navarro Marques, gestor do Centro de Medicina Nuclear da Faculdade de Medicina da USP Bettmann/Getty Images

[{"selector":"#anim-4d0622c2-3233-420b-8a62-caa6a78396f7","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-96eba0d3-3998-441a-97f0-3e0d591698e6","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-4ce6eb6f-fd27-457d-8aaf-9232fc6acbef","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-279e369a-e515-48b7-bf90-d7d15be8706e","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-12d404e6-33de-4992-bfcb-97854eb99d7e","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-d8803432-ca3c-4b9f-9338-fbb8f2670f52 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(7.9255143003587065%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Desse processo, explica o químico à CNN , Marie Curie descobriu duas substâncias muito mais ativas do que o urânio. Batizando-as de polônio e rádio, afirmou Marques Foto/Lyceum

[{"selector":"#anim-f96ce951-973e-4af6-b50e-ae723f43caae","keyframes":{"transform":["translate3d(-115.2381%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-51e0bd0c-bf7b-48df-b1bf-dcae8273fab2","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a4c8ad09-f4a0-4806-8288-12acf63c96ea","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-68ab17c9-4119-4305-9ca1-6186efd5ec27","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6569c3a6-44b8-4fd7-a62b-bef8abea3c6f","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-afc126a1-f6f2-4d91-b009-446d05635573","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-ae080db3-4416-46ab-bef8-2fa07d15c122 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-28.90624987200394%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] O uso da radiação teve um impacto profundo e transformador da vida na Terra. Hoje, os radioisótopos são utilizados em uma grande variedade de processos, afirma Marques, sendo que o principal é a produção de energia elétrica nas usinas nucleares Divulgação/Origo Energia

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CNNBRASIL.COM.BR

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