|
Frank Wigglesworth Clarke
Frank Wigglesworth Clarke (March 19, 1847 – May 23, 1931) of Boston, Massachusetts, and Washington, D.C. was an American scientist and chemist. Sometimes known as the "Father of Geochemistry," Clarke is credited with determining the composition of the Earth's crust. He was a founder of The American Chemical Society and served as its President, 1901. Expertise Clarke was the first theorist to advance a hypothesis regarding the evolution of elements. This concept emerged early in his intellectual career. His "Evolution and the Spectroscope" (1873) appear in Popular Science Monthly. It noted a parallel evolution of minerals, accompanying that of plant life. He was known for pushing mineral analysis beyond analytical results. He sought compilations of the associations, alterations, and syntheses of each mineral sample. His study "Constants of Nature" (Smithsonian Institution 1876) was one of the first collections of both physical and chemical constants. The USGS's Atom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Dalton
John Dalton (; 5 or 6 September 1766 – 27 July 1844) was an English chemist, physicist and meteorologist. He is best known for introducing the atomic theory into chemistry, and for his research into colour blindness, which he had. Colour blindness is known as ''Daltonism'' in several languages, being named after him. Early life John Dalton was born into a Quaker family in Eaglesfield, near Cockermouth, in Cumberland, England. His father was a weaver. He received his early education from his father and from Quaker John Fletcher, who ran a private school in the nearby village of Pardshaw Hall. Dalton's family was too poor to support him for long and he began to earn his living, from the age of ten, in the service of wealthy local Quaker Elihu Robinson. Early career When he was 15, Dalton joined his older brother Jonathan in running a Quaker school in Kendal, Westmorland, about from his home. Around the age of 23, Dalton may have considered studying law or medicin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philosophical Society Of Washington
Founded in 1871, the Philosophical Society of Washington is the oldest scientific society in Washington, D.C. It continues today as PSW Science. Since 1887, the Society has met regularly in the assembly hall of the Cosmos Club. In the Club's present location since 1951, the assembly hall is now called the John Wesley Powell auditorium. Meetings are roughly every other Friday, except in the summer. Meetings are free and open to the public. A lecture is given by a scientist at each meeting. In 1931, the Society established the ongoing Joseph Henry Lecture series. The lectures present speakers at who have reached the pinnacles of their respective fields, and in recent years have included Nobel laureates Baruch Blumberg, William D. Phillips, John C. Mather, and Craig Mello. History The Saturday Club In 1846, the Smithsonian Institution was founded and its Regents elected Joseph Henry as the Institution’s first Secretary. In 1855, the Smithsonian Castle was completed, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Irving Literary Society (Cornell University)
The Irving Literary Society (also known as the Irving Literary Association or simply The Irving) was a literary society at Cornell University active from 1868 to 1887. The U.S. Bureau of Education described it as a "purely literary society" following the "traditions of the old literary societies of Eastern universities." During the period when the Cornell literary societies flourished, the Irving and its peers produced literature at a rate higher than the campus average for the next generation, leading commentators at the turn of the 20th century to question whether academic standards had fallen since the university's founding. Named after the American writer Washington Irving, the Irving Literary Society was founded on October 20, 1868, shortly after Cornell opened. Past members who went on to prominent careers included Judge Morris Lyon Buchwalter, Senator Joseph Benson Foraker, and the journalists John Andrew Rea and Francis Whiting Halsey. The Irving's last public meeting w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phi Kappa Psi
Phi Kappa Psi (), commonly known as Phi Psi, is an American collegiate social fraternity that was founded by William Henry Letterman and Charles Page Thomas Moore in Widow Letterman's home on the campus of Jefferson College in Canonsburg, Pennsylvania on February 19, 1852. There are over 90 chapters and colonies at accredited four year colleges and universities throughout the United States. More than 179,000 men have been initiated into Phi Kappa Psi since its founding. Phi Kappa Psi and Phi Gamma Delta, both founded at the same college, form the Jefferson Duo. History In the winter of 1850, a typhoid fever epidemic hit Jefferson College in Canonsburg, Pennsylvania. Many students left school. Among those who remained were William Henry Letterman and Charles Page Thomas Moore. They chose to care for their classmates who were stricken with the contagious disease, and a strong bond was formed. In the following school year, Letterman and Moore decided to found a fraternity ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abundance Of Chemical Elements
The abundance of the chemical elements is a measure of the occurrence of the chemical elements relative to all other elements in a given environment. Abundance is measured in one of three ways: by the mass-fraction (the same as weight fraction); by the mole-fraction (fraction of atoms by numerical count, or sometimes fraction of molecules in gases); or by the volume-fraction. Volume-fraction is a common abundance measure in mixed gases such as planetary atmospheres, and is similar in value to molecular mole-fraction for gas mixtures at relatively low densities and pressures, and ideal gas mixtures. Most abundance values in this article are given as mass-fractions. For example, the abundance of oxygen in pure water can be measured in two ways: the ''mass fraction'' is about 89%, because that is the fraction of water's mass which is oxygen. However, the ''mole-fraction'' is about 33% because only 1 atom of 3 in water, H2O, is oxygen. As another example, looking at the ''mass-fract ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Fersman
Alexander Evgenyevich Fersman (; 8 November 1883 – 20 May 1945) was a prominent Soviet Russian geochemist and mineralogist, and a member of the Soviet Academy of Sciences (1919–1945). Early life and education Fersman was born in St. Petersburg on 8 November 1883, to Evgeny Aleksandrovich Fersman, an architect and soldier, and Maria Eduardovna Kessler, a painter and pianist. He began exploring the countryside for minerals and collecting crystals while a young boy at his family's summer estate in Crimea. After graduating with honors from Odessa Classical Gymnasium in 1901, he attended the Mining Academy at Novorossisk, where he found the mineralogy courses so dull he attempted to switch his studies to Art History. Family friends persuaded him to take chemistry courses instead.G.P. GlasbyA.E. Fersman and the Kola Peninsula Geochemical Society In 1903, the senior Fersman's duties as an officer in the army of the Tsar took the family to Moscow, where Alexander enrolled in the Un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clarkeite
Clarkeite is a uranium oxide mineral with the chemical formula or . Its color varies from dark brown to reddish orange. Clarkeite forms by oxidation and replacement of uraninite late during pegmatite crystallization. Although uraninite-bearing granite pegmatites are common, clarkeite is rare and occurs intimately intergrown with other uranium minerals. It is known from only two localities; the Spruce Pine pegmatite district in western North Carolina, US, and Rajputana, in the Ajmer district, India. Clarkeite is the only known naturally occurring high-temperature uranate. The general formula for ideal clarkeite is . It was named for Frank Wigglesworth Clarke (1847–1931), American mineral chemist, and former chief chemist of the United States Geological Survey. See also * List of minerals * List of minerals named after people This is a list of minerals named after people. The chemical composition follows name. A * Abelsonite: C31H32N4Ni – American physicist Phili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convolvulus
''Convolvulus'' is a genus of about 200 to 250''Convolvulus''. Flora of China.''Convolvulus'' The Jepson eFlora. 2013. species of s in the family ,Parnell, J. and Curtis, T. 2012. ''Webb's An Irish Flora''. Cork University Press. with a |
Cosmos Club
The Cosmos Club is a 501(c)(7) private social club in Washington, D.C. that was founded by John Wesley Powell in 1878 as a gentlemen's club for those interested in science. Among its stated goals is, "The advancement of its members in science, literature, and art and also their mutual improvement by social intercourse." Cosmos Club members include three United States presidents, two vice presidents, U.S. Supreme Court justices, artists, writers, businessmen, government officials, journalists, scientists, and university presidents, 36 Nobel Prize winners, 61 Pulitzer Prize winners, and 55 Presidential Medal of Freedom recipients. In 1988, the Club opened to women. History According to one history, Clarence Edward Dutton originally had the idea for a social club for men of science, and shared his idea with Major John Wesley Powell. On November 16, 1878, a group of men met at Powell's home at 910 M Street, Washington, D.C.and discussed their mutual interest in creating what be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lewis Carroll
Charles Lutwidge Dodgson (; 27 January 1832 – 14 January 1898), better known by his pen name Lewis Carroll, was an English author, poet and mathematician. His most notable works are ''Alice's Adventures in Wonderland'' (1865) and its sequel ''Through the Looking-Glass'' (1871). He was noted for his facility with word play, logic, and fantasy. His poems ''Jabberwocky'' (1871) and ''The Hunting of the Snark'' (1876) are classified in the genre of literary nonsense. Carroll came from a family of high-church Anglicanism, Anglicans, and developed a long relationship with Christ Church, Oxford, where he lived for most of his life as a scholar and teacher. Alice Liddell, the daughter of Christ Church's dean Henry Liddell, is widely identified as the original inspiration for ''Alice in Wonderland'', though Carroll always denied this. An avid puzzler, Carroll created the word ladder puzzle (which he then called "Doublets"), which he published in his weekly column for ''Vanity Fair ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frank Wigglesworth Clarke (and Others)
Frank Wigglesworth Clarke (March 19, 1847 – May 23, 1931) of Boston, Massachusetts, and Washington, D.C. was an American scientist and chemist. Sometimes known as the "Father of Geochemistry," Clarke is credited with determining the composition of the Earth's crust. He was a founder of The American Chemical Society and served as its President, 1901. Expertise Clarke was the first theorist to advance a hypothesis regarding the evolution of elements. This concept emerged early in his intellectual career. His "Evolution and the Spectroscope" (1873) appear in Popular Science Monthly. It noted a parallel evolution of minerals, accompanying that of plant life. He was known for pushing mineral analysis beyond analytical results. He sought compilations of the associations, alterations, and syntheses of each mineral sample. His study "Constants of Nature" (Smithsonian Institution 1876) was one of the first collections of both physical and chemical constants. The USGS's Atomi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Philosophical Society Of Washington")
.jpg "Click for more on -> Cosmos Club")
