Stephen P. Grand is an American geologist, currently the Carleton Professor of Geophysics at University of Texas at Austin. [1] [2]
Stephen P. Grand is an American geologist, currently the Carleton Professor of Geophysics at University of Texas at Austin. [1] [2]
Geophysics is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis. Geophysicists, who usually study geophysics, physics, or one of the Earth sciences at the graduate level, complete investigations across a wide range of scientific disciplines. The term geophysics classically refers to solid earth applications: Earth's shape; its gravitational, magnetic fields, and electromagnetic fields ; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations and pure scientists use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial physics; and analogous problems associated with the Moon and other planets.
Stephen Tyrone Colbert is an American comedian, writer, producer, political commentator, actor, and television host. He is best known for hosting the satirical Comedy Central program The Colbert Report from 2005 to 2014 and the CBS talk program The Late Show with Stephen Colbert since September 2015.
The Royal Astronomical Society (RAS) is a learned society and charity that encourages and promotes the study of astronomy, solar-system science, geophysics and closely related branches of science. Its headquarters are in Burlington House, on Piccadilly in London. The society has over 4,000 members, known as fellows, most of whom are professional researchers or postgraduate students. Around a quarter of Fellows live outside the UK.
Sir Ninian Martin Stephen, was an English-born Australian judge who served as the 20th governor-general of Australia, in office from 1982 to 1989. He was previously a justice of the High Court of Australia from 1972 to 1982.
Continental crust is the layer of igneous, metamorphic, and sedimentary rocks that forms the geological continents and the areas of shallow seabed close to their shores, known as continental shelves. This layer is sometimes called sial because its bulk composition is richer in aluminium silicates (Al-Si) and has a lower density compared to the oceanic crust, called sima which is richer in magnesium silicate (Mg-Si) minerals. Changes in seismic wave velocities have shown that at a certain depth, there is a reasonably sharp contrast between the more felsic upper continental crust and the lower continental crust, which is more mafic in character.
The American Geophysical Union (AGU) is a 501(c)(3) nonprofit organization of Earth, atmospheric, ocean, hydrologic, space, and planetary scientists and enthusiasts that according to their website includes 130,000 people. AGU's activities are focused on the organization and dissemination of scientific information in the interdisciplinary and international fields within the Earth and space sciences. The geophysical sciences involve four fundamental areas: atmospheric and ocean sciences; solid-Earth sciences; hydrologic sciences; and space sciences. The organization's headquarters is located on Florida Avenue in Washington, D.C.
St Stephen's Green is a garden square and public park located in the city centre of Dublin, Ireland. The current landscape of the park was designed by William Sheppard. It was officially re-opened to the public on Tuesday, 27 July 1880 by Lord Ardilaun. The square is adjacent to one of Dublin's main shopping streets, Grafton Street, and to a shopping centre named after it, while on its surrounding streets are the offices of a number of public bodies as well as a stop on one of Dublin's Luas tram lines. It is often informally called Stephen's Green. At 22 acres (8.9 ha), it is the largest of the parks in Dublin's main Georgian garden squares. Others include nearby Merrion Square and Fitzwilliam Square.
The Night of Power, is, in Islamic belief, the night when Muslims believe the Quran was first sent down from heaven to the world, and also the night when its first verses were revealed to the Islamic prophet Muhammad; it is described as better than a thousand months of worshipping. According to various hadiths, its exact date is uncertain but was one of the odd-numbered nights of the last ten days of Ramadan, the ninth month of the Islamic calendar. Since that time, Muslims have regarded the last ten nights of Ramadan as being especially blessed. Muslims believe the Night comes again every year, with blessings and mercy of God in abundance.
The Jackson-Gwilt Medal is an award that has been issued by the Royal Astronomical Society (RAS) since 1897. The original criteria were for the invention, improvement, or development of astronomical instrumentation or techniques; for achievement in observational astronomy; or for achievement in research into the history of astronomy. In 2017, the history of astronomy category was removed for subsequent awards and was transferred to a new award, the Agnes Mary Clerke Medal.
Helmut Erich Landsberg (1906–1985) was a noted and influential climatologist. He was born in Frankfurt, Germany, February 9, 1906, and died December 6, 1985, in Geneva, Switzerland while attending a meeting of the World Meteorological Organization. Landsberg was an important figure in meteorology and atmospheric science in education, public service and administration. He authored several notable works, particularly in the field of particulate matter and its influence on air pollution and human health. He is the first to write in English about the use of statistical analysis in the field of climatology and implemented such statistical analysis in aiding military operations during World War II. He received a number of significant honors during his life. Several honors are now bestowed in his name in recognition of his contributions to his field.
In geophysics, a magnetic anomaly is a local variation in the Earth's magnetic field resulting from variations in the chemistry or magnetism of the rocks. Mapping of variation over an area is valuable in detecting structures obscured by overlying material. The magnetic variation in successive bands of ocean floor parallel with mid-ocean ridges was important evidence for seafloor spreading, a concept central to the theory of plate tectonics.
The historical development of geophysics has been motivated by two factors. One of these is the research curiosity of humankind related to planet Earth and its several components, its events and its problems. The second is economical usage of Earth's resources and Earth-related hazards such as earthquakes, volcanoes, tsunamis, tides, and floods.
Stephen William Hawking, was an English theoretical physicist, cosmologist, and author who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge. Between 1979 and 2009, he was the Lucasian Professor of Mathematics at Cambridge, widely viewed as one of the most prestigious academic posts in the world.
The Inge Lehmann Medal is given out by the American Geophysical Union to recognize "outstanding contributions to the understanding of the structure, composition, and dynamics of the Earth's mantle and core". The award was created in 1995 and named after seismologist Inge Lehmann who discovered Earth's inner core.
Geophysical Journal International (GJI) is a monthly peer-reviewed scientific journal in the field of geophysics. It is published by Oxford University Press on behalf of two learned societies: the Royal Astronomical Society (RAS) and the Deutsche Geophysikalische Gesellschaft, who select and peer-review the contents.
Model-dependent realism is a view of scientific inquiry that focuses on the role of scientific models of phenomena. It claims reality should be interpreted based upon these models, and where several models overlap in describing a particular subject, multiple, equally valid, realities exist. It claims that it is meaningless to talk about the "true reality" of a model as we can never be absolutely certain of anything. The only meaningful thing is the usefulness of the model. The term "model-dependent realism" was coined by Stephen Hawking and Leonard Mlodinow in their 2010 book, The Grand Design.
Lee Sang-Mook is a Korean marine geologist and computational scientist. He has worked as a researcher at the Korean Ocean Research and Development Institute from 1998 to 2003, and as a professor and researcher at Seoul National University since 2003. As an associate professor in the School of Earth and Environmental Sciences, he specializes in Marine Geology and Geophysics. He heads the Undergraduate Interdisciplinary Program in Computational Sciences and the graduate program in Computational Science and Technology.
The 1966 Tashkent earthquake occurred on 26 April in the Uzbek SSR. It had a moment magnitude of 5.2 with an epicenter in central Tashkent at a depth of 3–8 kilometers (1.9–5.0 mi). The earthquake caused massive destruction to Tashkent, destroying most of the buildings in the city, killing between 15 and 200 people and leaving between 200,000 and 300,000 homeless. Following the disaster, most of the historic parts of Tashkent had been destroyed and the city was rebuilt, based on Soviet architectural styles. Soviet authorities created an institute of seismology in order to forecast future earthquakes.
Harsh Kumar Gupta is an Indian earth scientist and seismologist, known for his pioneering work on estimation of reservoir-induced earthquakes. He is a former vice chancellor of the Cochin University of Science and Technology (CUSAT) and a Raja Ramanna Fellow at the National Geophysical Research Institute (NGRI), Hyderabad. A recipient of the 1983 Shanti Swarup Bhatnagar Prize for Science and Technology, the highest Indian award in the science and technology category, and the 2008 Waldo E. Smith Award, Gupta was awarded the fourth highest Indian civilian honour of the Padma Shri in 2006.
Mandagere Bharadwaj Ramachandra Rao was an Indian geophysicist, writer and one of the founding leaders of the Oil and Natural Gas Commission (ONGC). It was Rao who was reported to have identified Patiala House as the headquarters of the organization. Born in the Mysore state of British India,, on 5 August 1906, he secured his post graduate degree (MSc) from the University of Mysore before joining the Geological Survey of India (GSI). Later, when the Oil and Natural Gas Commission was formed in 1956, he joined the organization along with a number of geoscientists from GSI where he served for a number of years.
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