Changes in the cells’ DNA causes cancer
According to the late Dr. Frank Horsfall, Jr. cancer is caused by changes in the DNA of cells. His theory provided a basis for numerous more cancer research in finding ways to treat cancer and how heredity control in cells could be a tool in cancer prevention.
Frank Lappin Horsfall, Jr. (Seattle, December 14, 1906 – New York, February 19, 1971) was an American physician specializing in pathology. The Tamm-Horsfall protein is named after Igor Tamm and him. He was a clinician and a virologist whose influential leadership came primarily through his perceptive scientific experimentation. He spent all his formative years in Seattle until he was 21.
His father was a prominent surgeon who maintained a large house on Capitol Hill. Frank was the first of the four children. By the time he entered high school, he had decided to become an engineer, and he spent most of his time with a friend rigging up the family Victrola for radio reception. He was also active in various school activities. Continue reading
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German physicist Röntgen discovered X-Ray
Wilhelm Konrad Röntgen (1845-1923), German physicist was born March 27, 1845. While teaching at Wuerzburg University in 1895, he discovered X-rays, for which he was awarded the first Nobel Prize in Physics in 1901.
Röntgen’s name is mainly associated with his discovery of the rays that he called X-rays. In 1895 he was studying the phenomena accompanying the passage of an electric current through a gas of extremely low pressure. Although previous works have already been carried out, his work on cathode rays led him to the discovery of a new and different kind of rays. Continue reading
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Moore’s Law Prediction of Computer Chips Performance
According to Moore’s Law, the number of transistors on a computer chip doubles every 18 months or so. This prediction was conceived by Gordon Moore, co-founder and former chairman of Intel Corporation.
When Intel’s co-founder predicted in 1965 that as the number of transistors on a chip doubles, performance also doubles, he thought it would hold true for about 10 years. Well, it’s way past the millennium and we know that the computer chips have been shrinking, with increased performances in computers.
Gordon Moore is the co-founder and Chairman Emeritus of Intel Corporation, famous for Moore’s Law. Under him, Intel introduced the world’s first single chip microprocessor, the Intel 4004 invented by Intel engineers. Born in San Francisco on January 3, 1929, Gordon Earle Moore earned a bachelor’s in chemistry from the University of California at Berkeley in 1950 and a Ph.D. in chemistry and physics from the California Institute of Technology in 1954. Continue reading
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Frédéric Joliot-Curie, French physicist, shared Nobel Prize in physics with wife Irène Joliot-Curie, for artificial radioactivity.
Frédéric Joliot ( (19 March 1900 – 14 August 1958) was born in Paris and graduated from the École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris. In 1925 he became an assistant to Marie Curie at the Radium Institute. He fell in love with her daughter Irène Curie, and married in 1926. At the insistence of Marie, Joliot-Curie obtained a second baccalauréat, a bachelor’s degree, and a doctorate in science, doing his thesis on the electrochemistry of radio-elements.
Frédéric and Irène changed their surnames to Joliot-Curie after they married on October 4, 1926 in Paris, France. Eleven months later, their daughter Hélène, was born, who would also become a noted physicist. Their son, Pierre, born in 1932, was a biologist. Frédéric Joliot-Curie devoted the last years of his life to the creation of a centre for nuclear physics at Orsay, where his children were educated. Continue reading