Sir William Henry Bragg (1862-1942) Born at Wigton, Cumberland, England, on July 2, 1862. Studied At King's College, Cambridge, he studied mathematics and physics. Pioneered research in the field of X-ray crystallography. Developed the concept of X-ray diffraction with his son Lawrence Bragg. Proposed Bragg's law, which explains X-ray diffraction by crystals and allows crystal shapes to be determined. The structure of numerous crystals, including minerals and chemical molecules, was investigated. X-ray crystallography was used to investigate the molecular structures of key compounds such as proteins. He was a professor at the Universities of Leeds (1909-1915) and Manchester (1915-1919). In 1915, he and his son Lawrence shared the Nobel Prize in Physics for their work on X-ray crystallography.
The "War of the Currents" was a time in history in the late nineteenth century when there was fierce competition between two competing electrical power systems: Thomas Edison's direct current (DC) system and Nikola Tesla and George Westinghouse's alternating current (AC) system. Thomas Edison pioneered the use of direct current (DC) electricity for electrical distribution through his firm Edison Electric Light firm (later known as General Electric or GE). Due to its restricted transmission capabilities, DC electricity travels in just one way and necessitates power plants being situated near customers. On the other side, Nikola Tesla, with the financial backing of George Westinghouse, lobbied for alternating current power. AC electricity allows for more efficient long-distance transmission and the use of transformers to step up or step down voltage levels as needed. As each side sought to control the burgeoning electric power business, tensions between these two syste...
Marie Curie, usually known as Madam Curie, was a well-known physicist and chemist. She was born in Warsaw, Poland, on November 7, 1867, and died in Passy, France, on July 4, 1934. Marie Curie is most known for her groundbreaking radiation research, which resulted in the discovery of two elements, polonium, and radium. She was the first woman to get a Nobel Prize and the first person to receive Nobel Prizes in both physics (1903) and chemistry (1911). Marie Curie's work transformed our knowledge of the atomic structure and set the path for several breakthroughs in nuclear physics and medicine. Her scientific discoveries and efforts have had a long-lasting influence. Contributions of Marie Curie Marie Curie lived a remarkable life and made substantial contributions to physics and chemistry. Here are some highlights from her life and career: Radioactivity Investigation: Marie Curie did pioneering research on radioactivity alongside her husband, Pierre Curie. ...
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