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Ady Hershcovitch
Ady Hershcovitch is a plasma physicist best known for his 1995 invention, the plasma window, which was later patented. (United States Patent: 5578831:Hershcovitch). In the plasma window, a plasma (which is an ionized gas confined by electric and magnetic fields) separates air from a vacuum by preventing the air from rushing into the vacuum. This scientific development can facilitate non-vacuum ion material modification, manufacturing of superalloys, and high-quality non-vacuum electron-beam welding. The device has been compared to the force field in the ''Star Trek'' TV series. He is well known for his work in plasma physics at Brookhaven National Laboratory. He has over 80 publications and 15 patents. Academic career Hershcovitch earned his Masters in Nuclear Engineering in 1975 and his Sc.D. In Applied Plasma Physics in 1977 at the Massachusetts Institute of Technology. In 1980, Hershcovitch continued his research at Brookhaven National Laboratory in Upton, NY. Some of his mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasma (physics)
Plasma () 1, where \nu_ is the electron gyrofrequency and \nu_ is the electron collision rate. It is often the case that the electrons are magnetized while the ions are not. Magnetized plasmas are ''anisotropic'', meaning that their properties in the direction parallel to the magnetic field are different from those perpendicular to it. While electric fields in plasmas are usually small due to the plasma high conductivity, the electric field associated with a plasma moving with velocity \mathbf in the magnetic field \mathbf is given by the usual Lorentz force, Lorentz formula \mathbf = -\mathbf\times\mathbf, and is not affected by Debye shielding. Mathematical descriptions To completely describe the state of a plasma, all of the particle locations and velocities that describe the electromagnetic field in the plasma region would need to be written down. However, it is generally not practical or necessary to keep track of all the particles in a plasma. Therefore, plasma physicist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ion Source
An ion source is a device that creates atomic and molecular ions. Ion sources are used to form ions for mass spectrometers, optical emission spectrometers, particle accelerators, ion implanters and ion engines. Electron ionization Electron ionization is widely used in mass spectrometry, particularly for organic molecules. The gas phase reaction producing electron ionization is :M + e^- -> M^ + 2e^- where M is the atom or molecule being ionized, e^- is the electron, and M^ is the resulting ion. The electrons may be created by an arc discharge between a cathode and an anode. An electron beam ion source (EBIS) is used in atomic physics to produce highly charged ions by bombarding atoms with a powerful electron beam. Its principle of operation is shared by the electron beam ion trap. Electron capture ionization Electron capture ionization (ECI) is the ionization of a gas phase atom or molecule by attachment of an electron to create an ion of the form A−•. The reaction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Scientist
''New Scientist'' is a magazine covering all aspects of science and technology. Based in London, it publishes weekly English-language editions in the United Kingdom, the United States and Australia. An editorially separate organisation publishes a monthly Dutch-language edition. First published on 22 November 1956, ''New Scientist'' has been available in online form since 1996. Sold in retail outlets (paper edition) and on subscription (paper and/or online), the magazine covers news, features, reviews and commentary on science, technology and their implications. ''New Scientist'' also publishes speculative articles, ranging from the technical to the philosophical. ''New Scientist'' was acquired by Daily Mail and General Trust (DMGT) in March 2021. History Ownership The magazine was founded in 1956 by Tom Margerison, Max Raison and Nicholas Harrison as ''The New Scientist'', with Issue 1 on 22 November 1956, priced at one shilling (a twentieth of a pound in pre-decimal UK cu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michio Kaku
Michio Kaku (, ; born January 24, 1947) is an American theoretical physics, theoretical physicist, futurist, and popular science, popularizer of science (science communicator). He is a professor of theoretical physics in the City College of New York and CUNY Graduate Center. Kaku is the author of several books about physics and related topics and has made frequent appearances on radio, television, and film. He is also a regular contributor to his own blog, as well as other popular media outlets. For his efforts to bridge science and science fiction, he is a 2021 Sir Arthur Clarke Award, Sir Arthur Clarke Lifetime Achievement Awardee. His books ''Physics of the Impossible'' (2008), ''Physics of the Future'' (2011), ''The Future of the Mind'' (2014), and The God Equation, ''The God Equation: The Quest for a Theory of Everything'' (2021) became The New York Times Best Seller list, ''New York Times'' best sellers. Kaku has hosted several television specials for the BBC, the Discovery ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Universe (TV Series)
''The Universe'' is an American documentary film, documentary Television show, television series that features computer-generated imagery and computer graphics of astronomical objects in the universe plus interviews with experts who study in the fields of cosmology, astronomy, and astrophysics. The program is produced by Flight 33 Productions and Workaholic Productions. The series premiered on May 29, 2007, on History (U.S. TV network), The History Channel and four subsequent seasons were aired until 2010. Starting from October 25, 2011, new episodes began airing exclusively on H2 (TV network), H2. The series currently airs on Viceland and Story Television. Format The series covers topics concerning space exploration, the Solar System, and astronomical objects in the universe. It shows computer-generated imagery, CGI renderings of these aforementioned, video footage, photographs, and views from scientists, project managers, engineers, advocates, writers and other experts. The epi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History (U
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the invention of writing systems is considered prehistory. "History" is an umbrella term comprising past events as well as the memory, discovery, collection, organization, presentation, and interpretation of these events. Historians seek knowledge of the past using historical sources such as written documents, oral accounts, art and material artifacts, and ecological markers. History is not complete and still has debatable mysteries. History is also an academic discipline which uses narrative to describe, examine, question, and analyze past events, and investigate their patterns of cause and effect. Historians often debate which narrative best explains an event, as well as the significance of different causes and effects. Historians also debate the nature of history as an end in itself, as well as its usefulness to give perspective on the problems of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Island
Long Island is a densely populated island in the southeastern region of the U.S. state of New York (state), New York, part of the New York metropolitan area. With over 8 million people, Long Island is the most populous island in the United States and the List of islands by population, 18th-most populous in the world. The island begins at New York Harbor approximately east of Manhattan Island and extends eastward about into the Atlantic Ocean and 23 miles wide at its most distant points. The island comprises four List of counties in New York, counties: Kings and Queens counties (the New York City Borough (New York City), boroughs of Brooklyn and Queens, respectively) and Nassau County, New York, Nassau County share the western third of the island, while Suffolk County, New York, Suffolk County occupies the eastern two thirds of the island. More than half of New York City's residents (58.4%) lived on Long Island as of 2020, in Brooklyn and in Queens. Culturally, many people in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Physical Society
The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of knowledge of physics. The society publishes more than a dozen scientific journals, including the prestigious '' Physical Review'' and ''Physical Review Letters'', and organizes more than twenty science meetings each year. APS is a member society of the American Institute of Physics. Since January 2021 the organization has been led by chief executive officer Jonathan Bagger. History The American Physical Society was founded on May 20, 1899, when thirty-six physicists gathered at Columbia University for that purpose. They proclaimed the mission of the new Society to be "to advance and diffuse the knowledge of physics", and in one way or another the APS has been at that task ever since. In the early years, virtually the sole activity of the AP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skolkovo Foundation
The Skolkovo Foundation is the principal agency, as a part of VEB.RF group (ex-Vnesheconombank), responsible for the Russian Skolkovo Innovation Center, a scientific and technological center for the development and commercialization of advanced technologies. It is a non-profit organization founded in 2010 and charged by Russian President Dmitry Medvedev with creating a new science and technology development center in the Moscow suburb of Skolkovo. The Skolkovo innovation system comprises the Skolkovo Institute of Science and Technology (Skoltech) established in partnership with MIT The Massachusetts Institute of Technology (MIT) is a private land-grant research university in Cambridge, Massachusetts. Established in 1861, MIT has played a key role in the development of modern technology and science, and is one of the m ..., corporate R&D centers, business incubators, private seed and venture funds, and start-up companies, as well as residential space and social infrastructure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tomsk, Russia
Tomsk ( rus, Томск, p=tomsk, sty, Түң-тора) is a city and the administrative center of Tomsk Oblast in Russia, located on the Tom River. Population: Founded in 1604, Tomsk is one of the oldest cities in Siberia. The city is a notable educational and scientific center with six state universities consisting of over 100,000 students, including Tomsk State University, the oldest university in Siberia. History Tomsk originated with a decree by Tsar Boris Godunov in 1604 after , the Tatar duke of , asked for the Tsar's protection against Kirghiz bandits. The Tsar sent 200 Cossacks under the command of and Gavriil Ivanovich Pisemsky to construct a fortress on the bank of the Tom River, overlooking what would become the city of Tomsk. Toian ceded the land for the fortress to the Tsar. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stony Brook, New York
Stony Brook is a political subdivisions of New York#Hamlet, hamlet and census-designated place (CDP) in the Administrative divisions of New York#Town, Town of Brookhaven, New York, Brookhaven in Suffolk County, New York, United States, on the North Shore (Long Island), North Shore of Long Island. Begun in the colonial era as an agricultural enclave, the hamlet experienced growth first as a resort town and then to its current state as one of Long Island's major tourist towns and centers of education. Despite being referred to as a Village (United States), village by residents and tourists alike, Stony Brook has never been legally incorporated by the state. The population was 13,740 at the 2010 United States Census, 2010 census. The CDP is adjacent to the main campus of Stony Brook University, the largest public university in New York by area, and also The Stony Brook School, a private college preparatory school. It is also home to the Long Island Museum of American Art, History, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Methodist University
, mottoeng = "The truth will make you free" , established = , type = Private research university , accreditation = SACS , academic_affiliations = , religious_affiliation = United Methodist Church , president = R. Gerald Turner , provost = Elizabeth G. Loboa , coor = , students = 12,373 (fall 2020) , undergrad = 6,827 (fall 2020) , postgrad = 5,546 (fall 2020) , faculty = 1,151; 754 full time (Fall 2019) , endowment = $2.0 billion (2021)As of June 30, 2020. , city = Dallas , state = Texas , country = United States , campus = Large City , campus_size= (main) , colors = SMU Red SMU Blue , sports_nickname = Mustangs , athletics_affiliations = NCAA Division I FBS – AAC , mascot = Peruna , website = , logo = Southern Methodist University logo.svg , logo_upright = .8 , free_label2 = Newspaper , free2 = ''The Daily Campus'' , free_label = Other campuses , free = Taos Southern Methodist University (SMU) is a private research university in Univ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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