12/24/2022 0 Comments Radium and polonium![]() ![]() These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polonium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. 2021 So Soviet engineers who worked on military tanks contributed to the design of the chassis, while nuclear specialists provided a heater fueled by highly radioactive polonium.Īnatoly Zak, Popular Mechanics, 18 July 2021 The couple discovered polonium (named after Marie’s homeland, the Kingdom of Poland) and radium within a few months. 2021 Only five women are currently buried at the Pantheon including Nobel Prize physicist and chemist Marie Curie who discovered radium and polonium. 2021 But Kate’s Terminator resemblance also includes her left eye’s red and distended pupil, evidence of the polonium poisoning that will kill her in 24 hours.Īmy Nicholson, Variety, 3 Sep. ![]() 2021 He was killed in 2006 after drinking a cup of tea that had been laced with the deadly radioactive metal, polonium. 2022 Marie Curie was a Nobel-prize-winning French physicist who discovered polonium and radium - later leading to the development of X-rays and the establishment of radiation therapy for cancer. 2022 Why Marie: The first woman to win the Nobel Prize for Physics, Marie Curie is best known for her discovery of both polonium and radium, as well as fundamentally changing our understanding of radioactivity. blamed Russian agents for the poisoning of Alexander Litvinenko, who died after being exposed to radioactive polonium.ī, 28 Mar. The Health Physics Society 1313 Dolley Madison Blvd.Recent Examples on the Web In 2006, the U.K. Thanks to the following group for allowing us to reprint this information: Marie Curie died July 4, 1934, overtaken by pernicious anemia no doubt caused by years of overwork and radiation exposure. For the remainder of her life she tirelessly investigated and promoted the use of radium as a treatment for cancer. A year later, Marie was awarded the Nobel Prize in chemistry for her discoveries of radium and polonium, thus becoming the first person to receive two Nobel Prizes. In his honor, the 1910 Radiology Congress chose the curie as the basic unit of radioactivity the quantity of radon in equilibrium with one gram of radium (current definition: 1Ci = 3.7 x 10 10 dps). Never before had a woman taught there in its 650 year history! Her first lecture began with the very sentence her husband had used to finish his last. Pierre's teaching position at the Sorbonne was given to Marie. They have claimed that the discoveries of radium and polonium were part of the reason for the Prize in 1903, even though this was not stated explicitly. Tragically, Pierre was killed three years later in an accident while crossing a street in a rainstorm. For their work on radioactivity, the Curies were awarded the 1903 Nobel Prize in physics. This led to the discoveries of the elements polonium and radium, but it took four more years of processing tons of ore under oppressive conditions to isolate enough of each element to determine its chemical properties. She concluded that the ore contained, in addition to uranium, new elements that were also radioactive. After chemical extraction of uranium from the ore, Marie noted the residual material to be more "active" than the pure uranium. Although the phenomenon was discovered by Henri Becquerel, the term radioactivity was coined by Marie. Together, they began investigating the phenomenon of radioactivity recently discovered in uranium ore. Before the dangers of radiation were understood, radium was called. However, shortly after his marriage to Marie in 1895, Pierre subjugated his research to her interests. Marie Curie also discovered the element polonium while experimenting with pitchblende. He had also made important investigations into the phenomenon of magnetism including the identification of a temperature, the curie point, above which a material's magnetic properties disappear. In 1880, he and his brother Jacques had discovered piezoelectricity whereby physical pressure applied to a crystal resulted in the creation of an electric potential. By the time he met Marie Sklodowska, Pierre Curie had already established an impressive reputation. ![]()
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