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The National Academy Of Sciences
The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the National Academy of Medicine (NAM). As a national academy, new members of the organization are elected annually by current members, based on their distinguished and continuing achievements in original research. Election to the National Academy is one of the highest honors in the scientific field in the United States. Members of the National Academy of Sciences serve ''pro bono'' as "advisers to the nation" on science, engineering, and medicine. The group holds a congressional charter under Title 36 of the United States Code. Congress legislated and President Abraham Lincoln signed an Act of Congress (1863) establishing the National Academy of Sciences as an independent, trusted nongovernmental institution, created for the purpose of "pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Academy Of Sciences Building
The National Academy of Sciences (NAS) Building houses the executive offices of the National Academy of Sciences, National Academy of Engineering, and the National Academy of Medicine. It is located at 2101 Constitution Avenue, N.W., in Washington, D.C. Designed by Bertram Grosvenor Goodhue, the building's architecture combines elements of Classicism and irregular forms into a new "Alexandrian" style. President Calvin Coolidge gave the principal address at the building dedication ceremony on April 28, 1924, referring to the building as a "Temple of Science". References External links * {{Official website, http://www.nasonline.org/about-nas/visiting-nas/nas-building/, name=The National Academy of Sciences Building at the NAS website Neoclassical architecture in Washington, D.C. Bertram Goodhue buildings Buildings and structures on the National Register of Historic Places in Washington, D.C. Buildings and structures completed in 1924 Buildings and structures in Foggy Botto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dairy Cattle
Dairy cattle (also called dairy cows) are cattle bred with the ability to produce large quantities of milk, from which dairy products are made. Dairy cattle generally are of the species '' Bos taurus''. Historically, little distinction was made between dairy cattle and beef cattle, with the same stock often being used for both meat and milk production. Today, the bovine industry is more specialized and most dairy cattle have been bred to produce large volumes of milk. Management Dairy cows may be found either in herds or dairy farms, where dairy farmers own, manage, care for, and collect milk from them, or on commercial farms. Herd sizes vary around the world depending on landholding culture and social structure. The United States has an estimated 9 million cows in around 75,000 dairy herds, with an average herd size of 120 cows. The number of small herds is falling rapidly, with 51% of U.S. milk in 2007 produced by the 3,100 herds with over 500 cows. The United Kingdo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benjamin Peirce
Benjamin Peirce (; April 4, 1809 – October 6, 1880) was an American mathematician who taught at Harvard University for approximately 50 years. He made contributions to celestial mechanics, statistics, number theory, algebra, and the philosophy of mathematics. Early life He was born in Salem, Massachusetts, the son of first cousins Benjamin Peirce (1778–1831), later librarian of Harvard, and Lydia Ropes Nichols Peirce (1781–1868). After graduating from Harvard University in 1829, he taught mathematics for two years at the Round Hill School in Northampton, and in 1831 was appointed professor of mathematics at Harvard. He added astronomy to his portfolio in 1842, and remained as Harvard professor until his death. In addition, he was instrumental in the development of Harvard's science curriculum, served as the college librarian, and was director of the United States Coast Survey from 1867 to 1874. In 1842, he was elected as a member of the American Philosophical Society ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Agassiz
Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he received a PhD at Erlangen and a medical degree in Munich. After studying with Georges Cuvier and Alexander von Humboldt in Paris, Agassiz was appointed professor of natural history at the University of Neuchâtel. He emigrated to the United States in 1847 after visiting Harvard University. He went on to become professor of zoology and geology at Harvard, to head its Lawrence Scientific School, and to found its Museum of Comparative Zoology. Agassiz is known for observational data gathering and analysis. He made institutional and scientific contributions to zoology, geology, and related areas, including multivolume research books running to thousands of pages. He is particularly known for his contributions to ichthyological classification, incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bureau Of Navigation (United States Navy)
The U.S. Navy's Bureau of Navigation was established in 1862 as part of the reorganization of the Navy Department. Principal responsibilities were to provide nautical charts and instruments and to oversee several activities involved navigation research, including the Naval Observatory. In 1889, the Bureau gained responsibilities for personnel management, and this eventually became its primary function. In 1942, the Bureau was renamed the Bureau of Naval Personnel (BuPers), under which name it continues today. This bureau is not to be confused with the federal Bureau of Navigation (later the Bureau of Navigation and Steamboat Inspection), established in 1884 to oversee commercial shipping and navigation. Early years, 1862 to 1889 The Navy's Bureau of Navigation was one of three bureaus created by Congress on July 5, 1862, to supersede the Bureau of Construction, Equipment, and Repair, one of the original Navy Department bureaus established on August 31, 1842, to replace the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomer
An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers observe astronomical objects, such as stars, planets, natural satellite, moons, comets and galaxy, galaxies – in either observational astronomy, observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, Sun, solar astronomy, the Star formation, origin or stellar evolution, evolution of stars, or the galaxy formation and evolution, formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers typically fall under either of two main types: observational astronomy, observational and theoretical astronomy, theoretical. Observational astronomers make direct observations of Astronomical object, celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate Con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Henry Davis
Charles Henry Davis ( – ) was a Autodidacticism, self-educated American astronomer and Rear admiral (United States), rear admiral of the United States Navy. While working for the United States Coast and Geodetic Survey, United States Coast Survey, he researched tides and currents, and located an uncharted shoal that had caused wrecks off of the coast of New York (state), New York. During the American Civil War, he commanded the Mississippi River Squadron, Western Gunboat Flotilla, where he won an important engagement in the First Battle of Memphis before capturing enemy supplies on a successful expedition up the Yazoo River. Davis was also one of the founders of the National Academy of Sciences in 1863 and he wrote several scientific books. Historian Donald L. Miller describes Davis during the time of the Civil War as "tall, solemn-looking and contemplative, with a drooping mustache that hung over his mouth." Early life Davis was born in Boston, Massachusetts, the son of D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge, Massachusetts
Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. It is a suburb in the Greater Boston metropolitan area, located directly across the Charles River from Boston. The city's population as of the 2020 United States census, 2020 U.S. census was 118,403, making it the most populous city in the county, the List of municipalities in Massachusetts, fourth-largest in Massachusetts behind Boston, Worcester, Massachusetts, Worcester, and Springfield, Massachusetts, Springfield, and List of cities in New England by population, ninth-most populous in New England. The city was named in honor of the University of Cambridge in Cambridge, England, which was an important center of the Puritans, Puritan theology that was embraced by the town's founders. Harvard University, an Ivy League university founded in Cambridge in 1636, is the oldest institution of higher learning in the United States. The Massachusetts Institute of Technology (MIT), Lesley University, and Hult Inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Lazzaroni
The Scientific Lazzaroni is a self-mocking name adopted by Alexander Dallas Bache and his group of scientists who flourished before and up to the American Civil War. (" Lazzaroni" was slang for the homeless idlers of Naples who live by chance work or begging - so called from the Hospital of St Lazarus, which served as their refuge.) These scientists then gained greater support and laid the foundation for the National Academy of Sciences. However, the National Academy did not solve the problems facing a nation plunged in Civil War – as the Lazzaroni had hoped, nor did it centralize American scientific efforts. These Lazzaroni were mostly professional physical scientists, interested in geophysical problems, who admitted a few kindred souls from other fields to their ranks. Their interests and range of influence extended to all of the sciences and included much of the research performed in universities and the government. They were consciously promoting the development of a professio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keck Center Of The National Academies , a microwave polarimeter at the South Pole
{{disambiguation ...
Keck may refer to: * Keck (surname) * Keck, Kentucky, an unincorporated community, United States * 5811 Keck, an asteroid * Keck, another name for Cow Parsley Science * W. M. Keck Foundation, an American charitable foundation ** W. M. Keck Observatory at the Mauna Kea in Hawaii **Keck School of Medicine of USC at the University of Southern California ** Keck Graduate Institute of Applied Life Sciences in Claremont, California ** Keck Geology Consortium, a collaboration of colleges promoting undergraduate earth science research **Keck Array BICEP (Background Imaging of Cosmic Extragalactic Polarization) and the Keck Array are a series of cosmic microwave background (CMB) experiments. They aim to measure the polarization of the CMB; in particular, measuring the ''B''-mode of the CMB ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infectious Disease
An infection is the invasion of tissue (biology), tissues by pathogens, their multiplication, and the reaction of host (biology), host tissues to the infectious agent and the toxins they produce. An infectious disease, also known as a transmissible disease or communicable disease, is an Disease#Terminology, illness resulting from an infection. Infections can be caused by a wide range of pathogens, most prominently pathogenic bacteria, bacteria and viruses. Hosts can fight infections using their immune systems. Mammalian hosts react to infections with an Innate immune system, innate response, often involving inflammation, followed by an Adaptive immune system, adaptive response. Treatment for infections depends on the type of pathogen involved. Common medications include: * Antibiotics for bacterial infections. * Antivirals for viral infections. * Antifungals for fungal infections. * Antiprotozoals for protozoan infections. * Antihelminthics for infections caused by parasi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Warming
Present-day climate change includes both global warming—the ongoing increase in global average temperature—and its wider effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate. The current rise in global temperatures is driven by human activities, especially fossil fuel burning since the Industrial Revolution. Fossil fuel use, deforestation, and some agricultural and industrial practices release greenhouse gases. These gases absorb some of the heat that the Earth radiates after it warms from sunlight, warming the lower atmosphere. Carbon dioxide, the primary gas driving global warming, has increased in concentration by about 50% since the pre-industrial era to levels not seen for millions of years. Climate change has an increasingly large impact on the environment. Deserts are expanding, while heat waves and wildfires are becoming more common. Amplified warming in the Arctic has c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
