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Topic Review
Chemical Reaction Rate
The reaction rate for a reactant or product in a particular reaction is defined as the amount of the chemical that is formed or removed (in moles or mass units) per unit time per unit volume. Knowledge of these rates is essential in, among other disciplines, chemical engineering and environmental engineering. Chemical kinetics is the part of physical chemistry which studies reaction rates.
  • 1.3K
  • 28 Nov 2022
Topic Review
Allan McLeod Cormack
Allan MacLeod Cormack (February 23, 1924 – May 7, 1998) was a South African American physicist who won the 1979 Nobel Prize in Physiology or Medicine (along with Godfrey Hounsfield) for his work on X-ray computed tomography (CT).
  • 1.3K
  • 18 Oct 2022
Biography
Charles V. Shank
Charles Vernon (Chuck) Shank (born July 12, 1943) is an American physicist, best known as the director of the Lawrence Berkeley National Laboratory from 1989 to 2004. Charles Vernon (Chuck) Shank was born in Mount Holly, New Jersey, on July 12, 1943.[1][2][3] He entered the University of California, Berkeley, where he earned his Bachelor of Science (B.S.) degree in 1965, his Master of Science
  • 1.3K
  • 29 Dec 2022
Biography
Reimar Lüst
Reimar Lüst (German: [ˈʁaɪmaʁ ˈlyːst]; 25 March 1923 – 31 March 2020)[1] was a German astrophysicist. He worked in European space science from its beginning, as the scientific director of the European Space Research Organisation (ESRO) from 1962 and as Director General of the European Space Agency (ESA) from 1984 until 1990. Lüst taught internationally and influenced German politics a
  • 1.3K
  • 29 Dec 2022
Topic Review
Metric Units
Metric units are units based on the metre, gram or second and decimal (power of ten) multiples or sub-multiples of these. The most widely used examples are the units of the International System of Units (SI). By extension they include units of electromagnetism from the CGS and SI units systems, and other units for which use of SI prefixes has become the norm. Other unit systems using metric units include: International System of Electrical and Magnetic Units, Metre–tonne–second (MTS) system of units, MKS system of units.
  • 1.3K
  • 17 Oct 2022
Biography
William Allis
William Phelps Allis (November 15, 1901 in Menton, France – March 5, 1999 in Cambridge, Massachusetts) was an American theoretical physicist specializing in electrical discharges in gases.[1] He was the grandson of Edward P. Allis,[2] founder of the E.P. Allis Company, which became Allis-Chalmers. Allis majored in school and received his S.B. in 1923 and S.M. in 1924 from the Massachusetts
  • 1.3K
  • 08 Dec 2022
Biography
Robert Bruce Lindsay
Robert Bruce Lindsay (1 January 1900 – 2 March 1985) was an United States physicist and physics professor, known for his prolific authorship of physics books in acoustics, and historical and philosophical analyses of physics.[1][2] R(obert) Bruce Lindsay's January 1, 1900 birth date hailed a new century. At the age of 20, he received both a BA and an MS in physics from Brown University. Bef
  • 1.2K
  • 26 Dec 2022
Topic Review
Thermodynamics and an Introduction to Thermostatistics
Thermodynamics and an Introduction to Thermostatistics is a textbook written by Herbert Callen that explains the basics of classical thermodynamics and discusses advanced topics in both classical and quantum frameworks. The textbook contains three parts, each building upon the previous. The first edition was published in 1960 and a second followed in 1985.
  • 1.2K
  • 22 Nov 2022
Biography
Richard Garwin
Richard Lawrence Garwin (born April 19, 1928) is an United States physicist, widely known to be the author of the first hydrogen bomb design.[1][2] Garwin received his bachelor's degree from the Case Institute of Technology in 1947, and two years later his Ph.D. from the University of Chicago under the supervision of Enrico Fermi at the age of 21. Another of Fermi's students, Marvin L. Goldbe
  • 1.2K
  • 25 Nov 2022
Topic Review
Moberly–Jourdain Incident
The Moberly–Jourdain incident (also the Ghosts of Petit Trianon or Versailles, French: les fantômes du Trianon / les fantômes de Versailles) is a claim of time travel and hauntings made by Charlotte Anne Moberly (1846–1937) and Eleanor Jourdain (1863–1924). In 1911, Moberly and Jourdain published a book entitled An Adventure under the names of "Elizabeth Morison" and "Frances Lamont". Their book describes a visit they made to the Petit Trianon, a small château in the grounds of the Palace of Versailles where they claimed to have seen the gardens as they had been in the late eighteenth century as well as ghosts, including Marie Antoinette and others. Their story caused a sensation and was subject to much ridicule.
  • 1.2K
  • 22 Nov 2022
Biography
Prabhakar Misra
Prabhakar Misra is an American physicist, who researches and teaches at Howard University in Washington, D.C., and is currently a Professor in the Department of Physics and Astronomy. Born and raised in India, he came to the United States to pursue graduate studies in physics. He earned an M.S. in Physics from Carnegie Mellon University in 1981 (Pittsburgh, Pennsylvania), followed by a Ph D.
  • 1.2K
  • 25 Nov 2022
Biography
Mounir Laroussi
File:Mounir Laroussi.tif Mounir Laroussi, is a Tunisian-American scientist. He is known for his work in plasma science, especially low temperature plasmas and their biomedical applications. Mounir Laroussi was born and raised in Sfax, Tunisia, the son of Habib Laroussi and Manana Jeloul. He is the middle child of three siblings. Laroussi attended the Alexander Dumas Elementary School and
  • 1.2K
  • 23 Jan 2023
Topic Review
List of Volcanic Features on Io
This is a list of named volcanic surface features on Jupiter's moon Io. These names have been approved for use by the International Astronomical Union. The features listed below represent a subset of the total known volcanic features on Io's surface with the majority currently not having an officially approved name. The names of volcanic features on Io use a combination of a name derived from mythological figures from around the world related to the Sun, fire, volcanoes, thunder, or smithing, places from the Greek mythological story of Io, Dante's Inferno, or from the name of a nearby feature on Io's surface and an approved descriptive term. The descriptive term used is based on the type of feature named and how it was first discovered. Volcanoes that were first observed as an active feature from observations of a volcanic plume fit under the category of "Eruptive Center" and do not use a descriptive term, though portions of these features may have also received names that do use a descriptive term, like Prometheus Patera or Masubi Fluctus. Lava flows use the descriptive term fluctus or the plural fluctūs, e.g. Acala Fluctus. Volcanic depressions use the term patera or the plural paterae, e.g. Ah Peku Patera. The term has also become the generic term for referring to these structures. Small shield volcanoes use the term tholus or the plural tholi, e.g. Inachus Tholus. Finally, channels carved by volcanic lava flows through thermal erosion use the term vallis or the plural valles. See also the list of mountains on Io and the list of regions on Io.
  • 1.2K
  • 02 Nov 2022
Biography
Iris Runge
Iris Anna Runge (1 June 1888 – 27 January 1966) was a German applied mathematician and physicist. Iris Runge was the eldest of six children of mathematician Carl Runge. She started studying physics, mathematics, and geography at the University of Göttingen in 1907, with the aim of becoming a teacher. At that time, she only attended the lectures, since women were not allowed to formally stu
  • 1.2K
  • 29 Dec 2022
Biography
Shi Nguyen-Kuok
Shi Nguyen-Kuok (Nguyễn Quốc Sỹ; born February 20, 1967, in Hanoi) is a plasma scientist and the chairman of the VinIT Institute of Technology. Nguyen-Kuok was born on February 20, 1967. He graduated from high school in 1983 with honors. In the same year, he passed the state examination for admission to higher education. At the end of the contest, he was selected for a scholarship in th
  • 1.2K
  • 22 Nov 2022
Biography
Alan Tower Waterman
Alan Tower Waterman (June 4, 1892 – November 30, 1967) was an United States physicist. Born in Cornwall-on-Hudson, New York, he grew up in Northampton, Massachusetts. His father was a professor of physics at Smith College. Alan also became a physicist, doing his undergraduate and doctoral work at Princeton University, from which he obtained his Ph.D. in 1916.[1] He joined the faculty of the
  • 1.2K
  • 26 Dec 2022
Topic Review
Ig Nobel Prize
The Ig Nobel Prize is a satirical yet legitimate annual award presented by the Annals of Improbable Research to honor scientific achievements that are unusual, imaginative, and thought-provoking. Established in 1991, the prize celebrates research that "first makes people laugh, and then makes them think," highlighting the intersection of humor and scientific inquiry. While often humorous in subject matter, winning studies are typically grounded in peer-reviewed research and aim to promote public engagement with science through curiosity, creativity, and accessibility.
  • 1.2K
  • 20 May 2025
Biography
David Carroll
David Carroll (born January 13, 1963) is a U.S. physicist, materials scientist and nanotechnologist, Fellow of the American Physical Society, and director of the Center for Nanotechnology and Molecular Materials at Wake Forest University.[1] He has contributed to the field of nanoscience and nanotechnology through his work in nanoengineered cancer therapeutics, nanocomposite-based display and li
  • 1.2K
  • 29 Dec 2022
Topic Review
Stress Measures
The most commonly used measure of stress is the Cauchy stress tensor, often called simply the stress tensor or "true stress". However, several other measures of stress can be defined. Some such stress measures that are widely used in continuum mechanics, particularly in the computational context, are: The Kirchhoff stress (τ). The Nominal stress (N). The first Piola-Kirchhoff stress (P). This stress tensor is the transpose of the nominal stress (P=NT). The second Piola-Kirchhoff stress or PK2 stress (S). The Biot stress (T).
  • 1.2K
  • 06 Dec 2022
Topic Review
Royal Society Bakerian Medal
The Bakerian Medal is one of the premier medals of the Royal Society that recognizes exceptional and outstanding science. It comes with a medal award and a prize lecture. The medalist is required to give a lecture on any topic related to physical sciences. It is awarded annually to individuals in the field of physical sciences, including computer science.
  • 1.2K
  • 07 Nov 2022
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