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Robert Grant Aitken
Robert Grant Aitken (December 31, 1864 – October 29, 1951) was an American astronomer. Early life and education Robert Grant Aitken was born in Jackson, California, to Scottish immigrant Robert Aitken and Wilhelmina Depinau. Aitken attended Williams College in Massachusetts and graduated with an undergraduate degree in 1887. Career From 1887–1891, he worked as a mathematics instructor at Livermore, California, then received his M.A. from Williams College in 1892. He became a professor of mathematics at the College of the Pacific, another liberal arts school. He was offered an assistant astronomer position at Lick Observatory in California in 1895. He began a systematically study of double stars, measuring their positions and calculating their orbits around one another. From 1899, in collaboration with W. J. Hussey, he methodically created a very large catalog of such stars. This ongoing work was published in Lick Observatory bulletins. In 1905, Hussey left and Aitk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jackson, California
Jackson (formerly, Botilleas, Botilleas Spring, Bottileas, Bottle Spring, and Botellas) is a city in and the county seat of Amador County, California. Its population was 4,651 at the 2010 census, up from 3,989 at the 2000 census. The city is accessible by both California State Route 49, State Route 49 and California State Route 88, State Route 88. Geography and geology According to the United States Census Bureau, the city has a total area of , all of it land. Jackson Creek (Dry Creek), Jackson Creek traverses the city. Alluvial soils such as Pardee cobbly loam is found throughout the Jackson area. History Early history The area was inhabited by the Northern Sierra Indians, who occupied areas along creeks, spring, and seep areas, including permanent and seasonal drainages, flat ridges, and terraces. Therefore, areas along watercourses are considered likely locations for prehistoric cultural resources. Permanent villages were usually placed on elevations above seasonal flood ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flint Island
Flint Island is an uninhabited coral island in the central Pacific Ocean, part of the Southern Line Islands under the jurisdiction of Kiribati. In 2014 the Kiribati government established a exclusion zone around each of the southern Line Islands (Caroline (commonly called Millennium), Flint, Vostok, Malden, and Starbuck). Geography Flint Island is located about northwest of Tahiti, south-southeast of Vostok Island, and southwest of Caroline Island. The island is about long and wide at its widest point (). It has a land area of and rises to a height of above sea level. The island is surrounded by a narrow fringing reef and with no safe anchorage, landing is difficult. According to the U.S. Exploring Expedition (February 5, 1841), the island was thickly wooded with primeval forest, however the island is now mostly covered with planted coconut palms. History Flint island was discovered by the Spanish expedition of Ferdinand Magellan on 4 February 1521, and charted as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lalande Prize
The Lalande Prize (French: ''Prix Lalande'' also known as Lalande Medal) was an award for scientific advances in astronomy, given from 1802 until 1970 by the French Academy of Sciences. The prize was endowed by astronomer Jérôme Lalande in 1801, a few years before his death in 1807, to enable the Academy of Sciences to make an annual award "to the person who makes the most unusual observation or writes the most useful paper to further the progress of Astronomy, in France or elsewhere." The awarded amount grew in time: in 1918 the amount awarded was 1000 Francs, and by 1950, it was 10,000 francs. It was combined with the Valz Prize ''(Prix Valz)'' in 1970 to create the Lalande-Valz Prize and then with a further 122 foundation prizes in 1997, resulting in the establishment of the Grande Médaille. The Grande Medaille is not limited to the field of astronomy. Winners See also * List of astronomy awards * List of Nobel laureates—Nobel Prize The Nobel Prizes ( ; sv, No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colloids
A colloid is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance. Some definitions specify that the particles must be dispersed in a liquid, while others extend the definition to include substances like aerosols and gels. The term colloidal suspension refers unambiguously to the overall mixture (although a narrower sense of the word ''suspension'' is distinguished from colloids by larger particle size). A colloid has a dispersed phase (the suspended particles) and a continuous phase (the medium of suspension). The dispersed phase particles have a diameter of approximately 1 nanometre to 1 micrometre. Some colloids are translucent because of the Tyndall effect, which is the scattering of light by particles in the colloid. Other colloids may be opaque or have a slight color. Colloidal suspensions are the subject of interface and colloid science. This field of study was introduced in 1845 by Italian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marjorie J
Marjorie is a female given name derived from Margaret, which means pearl. It can also be spelled as Margery or Marjory. Marjorie is a medieval variant of Margery, influenced by the name of the herb marjoram. It came into English from the Old French, from the Latin ''Margarita'' (pearl). After the Middle Ages this name was rare, but it was revived at the end of the 19th century. Short forms of the name include Marge, Margie, Marj and Jorie. People *Marjorie, Countess of Carrick (also Margaret) (1253–1292), mother of Robert the Bruce *Marjorie Abbatt (1899–1991), English toy maker and businesswoman * Marjorie Acker (1894–1985), American artist * Marjorie Agosín (born 1955), American writer, activist, and professor *Marjorie Anderson (1913–1999), British actress and BBC radio broadcaster *Marjorie Ogilvie Anderson (1909–2002), Scottish historian and paleographer * Marjorie Arnfield (1930–2001), English landscape artist *Marjorie Barnard (1897–1987), Australian writ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buddhism
Buddhism ( , ), also known as Buddha Dharma and Dharmavinaya (), is an Indian religion or philosophical tradition based on teachings attributed to the Buddha. It originated in northern India as a -movement in the 5th century BCE, and gradually spread throughout much of Asia via the Silk Road. It is the world's fourth-largest religion, with over 520 million followers (Buddhists) who comprise seven percent of the global population. The Buddha taught the Middle Way, a path of spiritual development that avoids both extreme asceticism and hedonism. It aims at liberation from clinging and craving to things which are impermanent (), incapable of satisfying ('), and without a lasting essence (), ending the cycle of death and rebirth (). A summary of this path is expressed in the Noble Eightfold Path, a training of the mind with observance of Buddhist ethics and meditation. Other widely observed practices include: monasticism; " taking refuge" in the Buddha, the , and the ; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Baker Aitken
Robert Baker Dairyu Chotan Aitken Rōshi (June 19, 1917 – August 5, 2010) was a Zen teacher in the Harada-Yasutani lineage. He co-founded the Honolulu Diamond Sangha in 1959 together with his wife, Anne Hopkins Aitken. Aitken received Dharma transmission from Koun Yamada in 1985 but decided to live as a layperson. He was a socialist advocating social justice for gays, women and Native Hawaiians throughout his life, and was one of the original founders of the Buddhist Peace Fellowship. Biography Robert Aitken or Bob, as he liked to be called, was born to Robert Thomas Aitken and Gladys Page Baker in Philadelphia, Pennsylvania in 1917. He was raised in Hawaii from the age of five. He was the son of a war enthusiast and was a rebel and loner in the 1930s and 40s before the war. Living in Guam as a civilian working in construction—at the onset of World War II—he was detained by the Japanese and held in internment camps for the duration of the war. A guard at one of the internme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Thomas Aitken
Robert Thomas Aitken (June 13, 1890 – June 22, 1977) was an American anthropologist known for his work in Oceania while at the Bishop Museum in Hawaiʻi. Biography Born in Livermore, California, in 1890, Aitken was raised and educated with his sister and two brothers atop Mt. Hamilton, where his father was an astronomer at the Lick Observatory. He married Gladys Page Baker in 1915, and had two sons, Robert Baker Aitken (Zen Buddhist teacher and author) and Malcolm Darroch Aitken. His life work included anthropology, ethnology, and archeology. He did graduate work at Columbia University, and started his professional career as an instructor of anthropology at the University of Pennsylvania, and then as anthropologist at the Milwaukee Public Museum. Under the guidance of Franz Boas, Aitken and John Alden Mason excavated ''Cerro Hueco'' (Antonio's Cueva), a cave in Puerto Rico, in 1915. While human skeletal remains were unearthed, nothing else of significance was found. Docu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hearing Aid
A hearing aid is a device designed to improve hearing by making sound audible to a person with hearing loss. Hearing aids are classified as medical devices in most countries, and regulated by the respective regulations. Small audio amplifiers such as personal sound amplification products (PSAPs) or other plain sound reinforcing systems cannot be sold as "hearing aids". Early devices, such as ear trumpets or ear horns, were passive Amplifier, amplification cones designed to gather sound energy and direct it into the ear canal. Modern devices are computerised electroacoustic systems that transform environmental sound to make it audible, according to audiometry, audiometrical and cognitive rules. Modern devices also utilize sophisticated digital signal processing to try and improve speech intelligibility and comfort for the user. Such Digital signal processing, signal processing includes feedback management, wide dynamic range compression, directionality, frequency lowering, and noi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deaf
Deafness has varying definitions in cultural and medical contexts. In medical contexts, the meaning of deafness is hearing loss that precludes a person from understanding spoken language, an Audiology, audiological condition. In this context it is written with a lower case ''d''. It later came to be used in a cultural context to refer to those who primarily communicate through sign language regardless of hearing ability, often capitalized as ''Deaf'' and referred to as "big D Deaf" in speech and sign. The two definitions overlap but are not identical, as hearing loss includes cases that are not severe enough to impact spoken language comprehension, while cultural Deafness includes hearing people who use sign language, such as Child of deaf adult, children of deaf adults. Medical context In a medical context, deafness is defined as a degree of hearing difference such that a person is unable to understand speech, even in the presence of amplification. In profound deafness, e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Astronomical Union
The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation. It was founded in 1919 and is based in Paris, France. The IAU is composed of individual members, who include both professional astronomers and junior scientists, and national members, such as professional associations, national societies, or academic institutions. Individual members are organised into divisions, committees, and working groups centered on particular subdisciplines, subjects, or initiatives. As of 2018, the Union had over 13,700 individual members, spanning 90 countries, and 82 national members. Among the key activities of the IAU is serving as a forum for scientific conferences. It sponsors nine annual symposia and holds a triannual General Assembly that sets policy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Astronomical Society
(Whatever shines should be observed) , predecessor = , successor = , formation = , founder = , extinction = , merger = , merged = , type = NGO, learned society , status = Registered charity , purpose = To promote the sciences of astronomy & geophysics , professional_title = Fellow of the Royal Astronomical Society (FRAS) , headquarters = Burlington House , location = Piccadilly, London , coords = , region_served = , services = , membership = , language = , general = , leader_title = Patron , leader_name = King Charles III , leader_title2 = President , leader_name2 = Mike Edmunds , leader_title3 = Executive Director , leader_name3 = Philip Diamond , leader_title4 = , leader_name4 = , key_peop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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