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Robert Coleman Richardson
Robert Coleman Richardson (June 26, 1937 – February 19, 2013) was an American experimental physicist whose area of research included sub-millikelvin temperature studies of helium-3. Richardson, along with David Lee, as senior researchers, and then graduate student Douglas Osheroff, shared the 1996 Nobel Prize in Physics for their 1972 discovery of the property of superfluidity in helium-3 atoms in the Cornell University Laboratory of Atomic and Solid State Physics. Richardson was born in Washington D.C. He went to high school at Washington-Lee in Arlington, Virginia. He later described Washington-Lee's biology and physics courses as "very old-fashioned" for the time. "The idea of 'advanced placement' had not yet been invented," he wrote in his Nobel Prize autobiography. He took his first calculus course when he was a sophomore in college. Richardson attended Virginia Tech and received a B.S. in 1958 and a M.S. in 1960. He received his PhD from Duke University in 1965. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orders Of Magnitude (temperature)
List of orders of magnitude for temperature Detailed list for 100 K to 1000 K Most ordinary human activity takes place at temperatures of this order of magnitude. Circumstances where water naturally occurs in liquid form are shown in light grey. SI multiples References External linksOnline Temperature Conversion {{DEFAULTSORT:Orders Of Magnitude (Temperature) Temperature Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer. Thermometers are calibrated in various temperature scales that historically have relied o ... Threshold temperatures ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academy Of Achievement
The American Academy of Achievement, colloquially known as the Academy of Achievement, is a non-profit educational organization that recognizes some of the highest achieving individuals in diverse fields and gives them the opportunity to meet one another. The academy also brings together the leaders with promising graduate students for mentorship. The academy hosts an International Achievement Summit, which ends with an awards ceremony, during which new members are inducted into the academy. History Founded in 1961 by ''Sports Illustrated'' and ''LIFE'' magazine photographer Brian Reynolds, the Academy of Achievement recognizes the highest achievers in public service, business, science and exploration, sports and the arts. Reynolds established the academy after he realized that the famous people he photographed from different fields did not usually have the opportunity to interact with one another. The organization was described in a 1989 ''San Francisco Chronicle'' artic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is a global online video platform, online video sharing and social media, social media platform headquartered in San Bruno, California. It was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim. It is owned by Google, and is the List of most visited websites, second most visited website, after Google Search. YouTube has more than 2.5 billion monthly users who collectively watch more than one billion hours of videos each day. , videos were being uploaded at a rate of more than 500 hours of content per minute. In October 2006, YouTube was bought by Google for $1.65 billion. Google's ownership of YouTube expanded the site's business model, expanding from generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by YouTube. It also offers YouTube Premium, a paid subscription option for watching content without ads. YouTube also approved creators to participate in Google's Google AdSens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal God
A personal god, or personal goddess, is a deity who can be related to as a person, instead of as an impersonal force, such as the Absolute, "the All", or the "Ground of Being". In the scriptures of the Abrahamic religions, God is described as being a personal creator, speaking in the first person and showing emotion such as anger and pride, and sometimes appearing in anthropomorphic shape.Williams, W. Wesley, "A study of anthropomorphic theophany and Visio Dei in the Hebrew Bible, the Quran and early Sunni Islam", University of Michigan, March 2009 In the Pentateuch, for example, God talks with and instructs his prophets and is conceived as possessing volition, emotions (such as anger, grief and happiness), intention, and other attributes characteristic of a human person. Personal relationships with God may be described in the same ways as human relationships, such as a Father, as in Christianity, or a Friend as in Sufism. A 2008 survey by the Pew Research Center reported t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eagle Scout (Boy Scouts Of America)
Eagle Scout is the highest Ranks in Scouts BSA, achievement or rank attainable in the Scouts BSA program of the Boy Scouts of America (BSA). Since its inception in 1911, only four percent of Scouts have earned this rank after a lengthy review process. The Eagle Scout rank has been earned by over 2.5 million youth. Requirements include earning at least 21 merit badge (Boy Scouts of America), merit badges. The Eagle Scout must demonstrate Scout Spirit, an ideal attitude based upon the Scout Oath and Law, service, and leadership. This includes an extensive service project that the Scout plans, organizes, leads, and manages. Eagle Scouts are presented with a medal and a badge that visibly recognizes the accomplishments of the Scout. Additional recognition can be earned through Eagle Palms, awarded for completing additional tenure, leadership, and merit badge requirements. Those who have earned the rank of Eagle Scout also become eligible, although are not required, to join the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Magnetic Resonance
Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a strong constant magnetic field are perturbed by a weak oscillating magnetic field (in the near field) and respond by producing an electromagnetic signal with a frequency characteristic of the magnetic field at the nucleus. This process occurs near resonance, when the oscillation frequency matches the intrinsic frequency of the nuclei, which depends on the strength of the static magnetic field, the chemical environment, and the magnetic properties of the isotope involved; in practical applications with static magnetic fields up to ca. 20 tesla, the frequency is similar to VHF and UHF television broadcasts (60–1000 MHz). NMR results from specific magnetic properties of certain atomic nuclei. Nuclear magnetic resonance spectroscopy is widely used to determine the structure of organic molecules in solution and study molecular physics and crystals as well as non-crystalline materials. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arlington, Virginia
Arlington County is a county in the Commonwealth of Virginia. The county is situated in Northern Virginia on the southwestern bank of the Potomac River directly across from the District of Columbia, of which it was once a part. The county is coextensive with the U.S. Census Bureau's census-designated place of Arlington. Arlington County is considered to be the second-largest "principal city" of the Washington metropolitan area, although Arlington County does not have the legal designation of independent city or incorporated town under Virginia state law. In 2020, the county's population was estimated at 238,643, making Arlington the sixth-largest county in Virginia by population; if it were incorporated as a city, Arlington would be the third most populous city in the state. With a land area of , Arlington is the geographically smallest self-governing county in the U.S., and by reason of state law regarding population density, it has no incorporated towns within its borders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington-Lee High School
Washington-Liberty High School, formerly known as Washington-Lee High School, is a public high school in the Arlington Public Schools district in Arlington, Virginia, covering grades 9–12. Its attendance area serves the central third of Arlington, and it also offers the International Baccalaureate Program countywide. History The former name of Washington-Liberty High School, Washington-Lee High School was taken from the Washington and Lee University, but the "and" was omitted and replaced with a hyphen to distinguish its name from the university's. Construction on Washington-Liberty began in 1924, with the school opening in 1925 and graduating its first class in 1927. The architectural firm Upman & Adams designed the building in a simplified version of the Colonial Revival style. The school fronted on 13th St. N, which separated the school from its athletic field, eventually dedicated as Arlington County's War Memorial Stadium. In 1932, 41 classrooms, new offices, and ano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington D
Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on Washington, D.C. * George Washington (1732–1799), the first president of the United States Washington may also refer to: Places England * Washington, Tyne and Wear, a town in the City of Sunderland metropolitan borough ** Washington Old Hall, ancestral home of the family of George Washington * Washington, West Sussex, a village and civil parish Greenland * Cape Washington, Greenland * Washington Land Philippines *New Washington, Aklan, a municipality *Washington, a barangay in Catarman, Northern Samar *Washington, a barangay in Escalante, Negros Occidental *Washington, a barangay in San Jacinto, Masbate *Washington, a barangay in Surigao City United States * Washington, Wisconsin (other) * Fort Washington (disambiguatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Review Letters
''Physical Review Letters'' (''PRL''), established in 1958, is a peer-reviewed, scientific journal that is published 52 times per year by the American Physical Society. As also confirmed by various measurement standards, which include the ''Journal Citation Reports'' impact factor and the journal ''h''-index proposed by Google Scholar, many physicists and other scientists consider ''Physical Review Letters'' to be one of the most prestigious journals in the field of physics. ''According to Google Scholar, PRL is the journal with the 9th journal h-index among all scientific journals'' ''PRL'' is published as a print journal, and is in electronic format, online and CD-ROM. Its focus is rapid dissemination of significant, or notable, results of fundamental research on all topics related to all fields of physics. This is accomplished by rapid publication of short reports, called "Letters". Papers are published and available electronically one article at a time. When published in s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superfluid
Superfluidity is the characteristic property of a fluid with zero viscosity which therefore flows without any loss of kinetic energy. When stirred, a superfluid forms vortices that continue to rotate indefinitely. Superfluidity occurs in two isotopes of helium (helium-3 and helium-4) when they are liquefied by cooling to cryogenic temperatures. It is also a property of various other exotic states of matter theorized to exist in astrophysics, high-energy physics, and theories of quantum gravity. The theory of superfluidity was developed by Soviet theoretical physicists Lev Landau and Isaak Khalatnikov. Superfluidity is often coincidental with Bose–Einstein condensation, but neither phenomenon is directly related to the other; not all Bose–Einstein condensates can be regarded as superfluids, and not all superfluids are Bose–Einstein condensates. Superfluidity of liquid helium Superfluidity was discovered in helium-4 by Pyotr Kapitsa and independently by John F. Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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