{"id":19263,"date":"2025-01-27T13:09:10","date_gmt":"2025-01-27T13:09:10","guid":{"rendered":"https:\/\/www.earth-site.co.uk\/Education\/?page_id=19263"},"modified":"2025-01-27T13:11:27","modified_gmt":"2025-01-27T13:11:27","slug":"year-1902","status":"publish","type":"page","link":"https:\/\/www.earth-site.co.uk\/Education\/year-1902\/","title":{"rendered":"Year 1902"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_row column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_code _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<style><!-- [et_pb_line_break_holder] -->         .btn-grad {background-image: linear-gradient(to right, #348F50 0%, #56B4D3  51%, #348F50  100%)}<!-- [et_pb_line_break_holder] -->         .btn-grad {<!-- [et_pb_line_break_holder] -->            margin: 10px auto;<!-- [et_pb_line_break_holder] -->            padding: 15px 45px;<!-- [et_pb_line_break_holder] -->            text-align: center;<!-- [et_pb_line_break_holder] -->            text-transform: uppercase;<!-- [et_pb_line_break_holder] -->            transition: 0.5s;<!-- [et_pb_line_break_holder] -->            background-size: 200% auto;<!-- [et_pb_line_break_holder] -->            color: white; 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\/* change the direction of the change here *\/<!-- [et_pb_line_break_holder] -->            color: #fff;<!-- [et_pb_line_break_holder] -->            text-decoration: none;<!-- [et_pb_line_break_holder] -->          }<!-- [et_pb_line_break_holder] -->  .buttonContainer {margin:0 auto;display:block;text-align:center;}<!-- [et_pb_line_break_holder] --><\/style>\n<p><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"buttonContainer\"><!-- [et_pb_line_break_holder] -->  <a href=\"https:\/\/www.earth-site.co.uk\/Education\/nineteen-hundreds\/\" alt=\"20th century timeline\"><!-- [et_pb_line_break_holder] -->  <button data-v-766eb970=\"\" class=\"btn-grad\" > 1900&#8217;s <\/button><!-- [et_pb_line_break_holder] -->  <\/a><!-- [et_pb_line_break_holder] -->  <!-- [et_pb_line_break_holder] --><\/div>\n<p><!-- [et_pb_line_break_holder] -->         [\/et_pb_code][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p><!-- divi:shortcode --><\/p>\n<table class=\"tdih_table\"><thead><th class=\"tdih_event_date\">Date<\/th><th class=\"tdih_event_type\">Type<\/th><th class=\"tdih_event_name\">Event<\/th><\/thead><tr><td class=\"tdih_event_date\">1902-04-20<\/td><td class=\"tdih_event_type\"><\/td><td class=\"tdih_event_name\"> <p class=\"MsoNormal\" style=\"text-align:justify;text-indent:36.0pt;\">&nbsp;<\/p>\r\n  <p class=\"MsoNormal\" style=\"text-align:justify;text-indent:36.0pt;\"><strong><span style=\"font-family:'Verdana','sans-serif'; font-size:12.0pt; \">On this day in 1902<\/span><\/strong><span style=\"font-family:'Verdana','sans-serif'; font-size:12.0pt; \"> Radium was first isolated as the salt Radium Chloride by Marie and Pierre  Curie. In 1903 they both received the Nobel Prize for their research into  radiation and Marie became the first women to receive the prize. Marie started  studying Uranium for her PhD (doctorial) thesis in Poland. Pierre was a famous  physicist and chemist who later joined Marie on her research. While Marie  worked to isolate the various components Pierre worked on the physical  characteristics of the isolated components. Through their research into  pitchblende (a natural ore made mainly of Radium oxides UO<sub>2<\/sub> and UO<sub>3<\/sub>)  they managed to discover and isolate Radium and Plutonium which is produced as  the Uranium decays into more radioactive elements (see <a href=\"..\/DecayChains.html\">the &lsquo;decay chain&rsquo; of  Uranium<\/a> for more information). They named Radium from the Latin word &lsquo;Radius&rsquo;  meaning ray when they first identified it as a new element in 1898. As Radium  is not found freely in nature and so it took Marie a long time to isolate less  than a gram of radium chloride from several tons of pitchblende. Due to the  minute amount of Polonium found in pitchblende. After discovering polonium they  named the substance after Marie&rsquo;s home country of <a href=\"..\/Poland.html\">Poland<\/a>. After Pierre&rsquo;s death  from an accident on the 19<sup>th<\/sup> of April 1906 Marie was forced to  continue her work without her husband. In 1910 she managed to finally isolate  pure Radium which gained her another Nobel Prize the following year making her  the first person to win two Nobel Prizes. <\/span><\/p>\r\n  <p class=\"MsoNormal\" style=\"text-align:justify;text-indent:36.0pt;\">&nbsp;<\/p><\/td><\/tr><\/table>\n<p><!-- \/divi:shortcode --><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_code _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<style><!-- [et_pb_line_break_holder] -->         .btn-grad {background-image: linear-gradient(to right, #348F50 0%, #56B4D3  51%, #348F50  100%)}<!-- [et_pb_line_break_holder] -->         .btn-grad {<!-- [et_pb_line_break_holder] -->            margin: 10px auto;<!-- [et_pb_line_break_holder] -->            padding: 15px 45px;<!-- [et_pb_line_break_holder] -->            text-align: center;<!-- [et_pb_line_break_holder] -->            text-transform: uppercase;<!-- [et_pb_line_break_holder] -->            transition: 0.5s;<!-- [et_pb_line_break_holder] -->            background-size: 200% auto;<!-- [et_pb_line_break_holder] -->            color: white; 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