8/23/2023 0 Comments Physics 101 formulasAs an adult, he spoke with a New York accent strong enough to be perceived as an affectation or exaggeration, so much so that his friends Wolfgang Pauli and Hans Bethe once commented that Feynman spoke like a "bum". Feynman was a late talker and did not speak until after his third birthday. She trained as a primary school teacher but married Melville in 1917, before taking up a profession. Lucille's father had emigrated from Poland, and her mother also came from a family of Polish immigrants. Feynman's mother was born in the United States into a Jewish family. Feynman's father was born into a Jewish family in Minsk, Belarus (then part of the Russian Empire) and emigrated with his parents to the United States at the age of five. Feynman! and What Do You Care What Other People Think?, and books written about him such as Tuva or Bust! by Ralph Leighton and the biography Genius: The Life and Science of Richard Feynman by James Gleick.įeynman was born on May 11, 1918, in Queens, New York City, to Lucille ( née Phillips 1895–1981), a homemaker, and Melville Arthur Feynman (1890–1946), a sales manager. Feynman also became known through his autobiographical books Surely You're Joking, Mr. Tolman professorship in theoretical physics at the California Institute of Technology.įeynman was a keen popularizer of physics through both books and lectures, including a 1959 talk on top-down nanotechnology called There's Plenty of Room at the Bottom and the three-volume publication of his undergraduate lectures, The Feynman Lectures on Physics. Along with his work in theoretical physics, Feynman has been credited with pioneering the field of quantum computing and introducing the concept of nanotechnology. He assisted in the development of the atomic bomb during World War II and became known to a wide public in the 1980s as a member of the Rogers Commission, the panel that investigated the Space Shuttle Challenger disaster. In a 1999 poll of 130 leading physicists worldwide by the British journal Physics World, he was ranked the seventh-greatest physicist of all time. During his lifetime, Feynman became one of the best-known scientists in the world. For his contributions to the development of quantum electrodynamics, Feynman received the Nobel Prize in Physics in 1965 jointly with Julian Schwinger and Shin'ichirō Tomonaga.įeynman developed a widely used pictorial representation scheme for the mathematical expressions describing the behavior of subatomic particles, which later became known as Feynman diagrams. Meanwhile, the features of predicted α-decay energy and half-lives imply that N = 184 is the next neutron magic number after N = 126.Richard Phillips Feynman ( / ˈ f aɪ n m ə n/ – February 15, 1988) was an American theoretical physicist, known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, the physics of the superfluidity of supercooled liquid helium, as well as his work in particle physics for which he proposed the parton model. However, for Ts 293 and Og 294, predicted α-decay half-lives by our improved formula show better agreement with experimental data, indicating that predictions by our improved formula are more reliable and useful for future new superheavy elements and isotopes experimental assignments and identifications. The predictions of these two formulas are consistent. Encouraged by this, the α-decay half-lives of even-even nuclei and odd- A nuclei with Z = 117, 118, 119, and 120 are predicted using our improved formula and the universal decay law with the extrapolated Q α of the WS3+ mass model. Compared with the original formulas and other improvements, our new formula is more simple to use and more accurate. This formula takes into account both the blocking effect of unpaired nucleons and the contribution of centrifugal potential. The underlying physics of this phenomenon has been revealed and an improved formula with only eight parameters is proposed. For unfavored decays, they are less accurate and important deviations may occur between the calculations and experimental data. They describe precisely the favored α decays. In recent years, the amount of experimental data on α decay has increased and these formulas have been examined again. The Royer formulas are often used to calculate the α-decay half-lives.
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