physics
...y was scarce and the country went through a Great Depression. Movies, parlor games, and board games were popular. Franklin D. Roosevelt influenced Americans with his fireside chats. People moved to California in hope of better life. Homes were made of shacks and people lived in towns called Hoovervilles. Social Security Act of 1935 was set up to ensure that the elderly would receive an income. The Wagner Act of 1935 gave workers the legal right to Unionize. Germany and Italy fell to dictatorship. On November 8, 1895, at the University of Wurzburg, Wilhelm Rontgen, to his had discovered x-rays. X-rays are kind of electromagnetic radiation, which also includes visible lights, radio waves, and gamma rays. This event revolutionized the field of physics and medicine. Dentists take x-rays to reveal cavities and impacted teeth. In scientific research x-rays are used to analyze the arrangements of atoms. Industries use the x-rays to inspect products made of various materials. X-rays are used as radiographs or to take pictures of the internal body such as bones and detect abnormalities and disease conditions such as broken bones or lung cancer inside a body. Silvanus Thompson, a physicists, complained that Rontgen left little work for others to do beyond elaborating his work. On December 28, 1895, Rontgen handed in his first “provisional communications,” Ueber eine nue Art Von. Strchue (On a new kind of rays). As early as February 8, 1896, x-rays were being used clinically in the United States. Because of this, a physicists by the name of Edward Brat Frost was able to produce a plate of a colles fracture in a man named Eddie McCarthy, for his brother, Dr. Gilbert Frost. In WWI, Mary Curie used x-rays on wounded soldiers to locate shrapnel and bullet fragments and perform surgery. Mobile x-ray services were used during battle to prevent numerous amputations. Marie and Pierre Curie represent the most perfect partnership science has ever seen. They are responsible for discovering the two elements polonium and radium found in the mineral ore uranium. They were awarded the 1903 Nobel Prize in Physics for their research in radioactivity along with Henri Becquerel. The newly discovered radium would be in particular interest in the industrial and medical fields. In 1910 Marie Curie worked with French chemist Andre Debierne. The gamma rays given off by radium have been very useful in treating certain forms of tumors, cancers, and skin diseases. Radium is widely used in treating cancer. Radium was a derivative of the uranium ore, which was used in the atomic bombs dropped on Japan during WWII. The gamma rays given off by radium have been very useful in treating certain forms of tumors, cancers, and skin diseases. Henry Norris Russell played a principal part in laying the foundation of present-day astrophysics and pioneered in the research of binary stars and stellar parallaxes. In 1913, Russell developed a theory of stellar evolution that served to displace an older concept. He worked with Danish astrophysicist Ejnar Hertzsprung. Together they f...