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Edmund Scientific Corporation
Edmund Scientific Corporation, based in Barrington, New Jersey, was founded in 1942 as a retailer of surplus optical parts like lenses. It later branched out into complete systems like telescopes and microscopes, and in the 1960s, a wide variety of science toys and kits. Through the 1970s and 80s they were best known for their mail order sales and associated catalogs, although they also maintained a retail presence at their factory store. In 1984, the company split into Edmund Scientific and Edmund Industrial Optics, the latter taking over their optical manufacturing. Later known simply as Edmund Optics, the commercial side of the company continued to expand and now has a multinational presence. In 2001, the two companies were purchased by Boreal Science, which was in turn purchased by VWR International. Many of the science toys and kits are currently offered by the online retailer Scientifics Direct. Among the company's best-known products were the Astroscan reflector telesc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrington, New Jersey
Barrington is a borough in Camden County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 6,983,DP-1 - Profile of General Population and Housing Characteristics: 2010 for Barrington borough, Camden County, New Jersey United States Census Bureau. Accessed October 3, 2012. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychedelic Music
Psychedelic music (sometimes called psychedelia) is a wide range of popular music styles and genres influenced by 1960s psychedelia, a subculture of people who used psychedelic drugs such as LSD, psilocybin mushrooms, mescaline, and cannabis to experience synesthesia and altered states of consciousness. Psychedelic music may also aim to enhance the experience of using these drugs and has been found to have a significant influence on psychedelic therapy. Psychedelia embraces visual art, movies, and literature, as well as music. Psychedelic music emerged during the 1960s among folk and rock bands in the United States and the United Kingdom, creating the subgenres of psychedelic folk, psychedelic rock, acid rock, and psychedelic pop before declining in the early 1970s. Numerous spiritual successors followed in the ensuing decades, including progressive rock, krautrock, and heavy metal. Since the 1970s, revivals have included psychedelic funk, neo-psychedelia, and stoner r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hand Boiler
A hand boiler or (less commonly) love meter is a glass sculpture used as an experimental tool to demonstrate vapour-liquid equilibrium, or as a collector's item to whimsically "measure love." It consists of a lower bulb containing a volatile liquid and a mixture of gases that is connected usually by a twisting glass tube that connects to an upper or "receiving" glass bulb. Mechanics A hand boiler functions similar to the " drinking bird" toy: The upper and lower bulbs of the device are at different temperatures, and therefore the vapor pressure in the two bulbs is different. Since the lower bulb is warmer, the vapor pressure in it is higher. The difference in vapor pressure forces the liquid from the lower bulb to the upper bulb. Thus: \Delta h = \frac where: \Delta h = the height of the column of fluid above the fluid's level in the lower bulb \Delta p = the difference in vapor pressure between the two bulbs (which can be determined via the Antoine equation) \rho = the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresnel Lens
A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships." The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. The simpler dioptric (purely refractive) form of the lens was first proposed by Count Buffon and independently reinvented by Fresnel. The '' catadioptric'' form of the lens, entirely invented by Fresnel, has outer elements that use total internal reflection as well as refraction; it can capture more oblique light from a light source and add it to the beam of a lighthouse, making the light visible from greater distances. Description The Fresnel len ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science Kit And Boreal Laboratories
Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old. The earliest written records in the history of science come from Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes. After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but was preserved in the Muslim world during the Islamic Golden Age and later by the efforts of Byzantine Greek scholars who brought Greek ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neil DeGrasse Tyson
Neil deGrasse Tyson ( or ; born October 5, 1958) is an American astrophysicist, author, and science communicator. Tyson studied at Harvard University, the University of Texas at Austin, and Columbia University. From 1991 to 1994, he was a postdoctoral research associate at Princeton University. In 1994, he joined the Hayden Planetarium as a staff scientist and the Princeton faculty as a visiting research scientist and lecturer. In 1996, he became director of the planetarium and oversaw its $210 million reconstruction project, which was completed in 2000. Since 1996, he has been the director of the Hayden Planetarium at the Rose Center for Earth and Space in New York City. The center is part of the American Museum of Natural History, where Tyson founded the Department of Astrophysics in 1997 and has been a research associate in the department since 2003. From 1995 to 2005, Tyson wrote monthly essays in the "Universe" column for '' Natural History'' magazine, some of which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comet Kohoutek
Comet Kohoutek ( formally designated C/1973 E1 and formerly as 1973 XII and 1973f) is a comet that passed close to the Sun towards the end of 1973. Early predictions of the comet's peak brightness suggested that it had the potential to become one of the brightest comets of the 20th century, capturing the attention of the wider public and the press and earning the comet the moniker of "Comet of the Century". Although Kohoutek became rather bright, the comet was ultimately far dimmer than the optimistic projections: its apparent magnitude peaked at only –3 (as opposed to predictions of roughly magnitude –10) and it was visible for only a short period, quickly dimming below naked-eye visibility by the end of January 1974. The comet was discovered by and named after Luboš Kohoutek at the Hamburg Observatory on 18 March 1973; Kohoutek had been searching for Biela's Comet and had fortuitously discovered his eponymous comet while reviewing photographic plates for a dif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stewart Brand
Stewart Brand (born December 14, 1938) is an American writer, best known as editor of the ''Whole Earth Catalog''. He founded a number of organizations, including The WELL, the Global Business Network, and the Long Now Foundation. He is the author of several books, most recently '' Whole Earth Discipline: An Ecopragmatist Manifesto''. Life Brand was born in Rockford, Illinois, and attended Phillips Exeter Academy in New Hampshire. He studied biology at Stanford University, graduating in 1960. As a soldier in the U.S. Army, he was a parachutist and taught infantry skills; he later expressed the view that his experience in the military had fostered his competence in organizing. A civilian again in 1962, he studied design at San Francisco Art Institute, photography at San Francisco State College, and participated in a legitimate scientific study of then-legal LSD, in Menlo Park, California. In 1966, he married mathematician Lois Jennings, an Ottawa Native American.Brand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whole Earth Catalog
The ''Whole Earth Catalog'' (WEC) was an American counterculture magazine and product catalog published by Stewart Brand several times a year between 1968 and 1972, and occasionally thereafter, until 1998. The magazine featured essays and articles, but was primarily focused on product reviews. The editorial focus was on self-sufficiency, ecology, alternative education, "do it yourself" (DIY), and holism, and featured the slogan "access to tools". While WEC listed and reviewed a wide range of products (clothing, books, tools, machines, seeds, etc.), it did not sell any of the products directly. Instead, the vendor's contact information was listed alongside the item and its review. This is why, while not a regularly published periodical, numerous editions and updates were required to keep price and availability information up to date. Steve Jobs compared ''The Whole Earth Catalog'' to Internet search engine Google in his June 2005 Stanford University commencement speech. When I w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alternative Energy
Renewable energy is energy that is collected from renewable resources that are naturally replenished on a human timescale. It includes sources such as sunlight, wind, the movement of water, and geothermal heat. Although most renewable energy sources are sustainable, some are not. For example, some biomass sources are considered unsustainable at current rates of exploitation. Renewable energy often provides energy for electricity generation to a grid, air and water heating/ cooling, and stand-alone power systems. Renewable energy technology projects are typically large-scale, but they are also suited to rural and remote areas and developing countries, where energy is often crucial in human development. Renewable energy is often deployed together with further electrification, which has several benefits: electricity can move heat or objects efficiently, and is clean at the point of consumption. In addition, electrification with renewable energy is more efficient and theref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyramid Power
Pyramid power refers to the belief that the ancient Egyptian pyramids and objects of similar shape can confer a variety of benefits. Among these assumed properties are the ability to preserve foods,Bovis, Antoine. (Nice: Bovis, c. 1935). Translation by Jean-Paul Buquet. ''Skeptic.com.'' Retrieved November 24, 2008. sharpen or maintain the sharpness of razor blades,Drbal, Karel. ''Patenti Spis c. 91304.'' (Prague: 1959). improve health, function "as a thought-form incubator", trigger sexual urges, and cause other effects. Such unverified conjectures regarding pyramids are collectively known as pyramidology. There is no scientific evidence that pyramid power exists.Linse, Pat. (2002). ''Pyramids: The Mystery of Their Origins''. In Michael Shermer. ''The Skeptic Encyclopedia of Pseudoscience''. ABC-CLIO. pp. 397-412. "If pyramid power really existed it would be wonderful indeed... But no scientific tests to date have managed to detect it."Neher, Andrew. (2011). ''Paranormal and Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirlian Photography
Kirlian photography is a collection of photographic techniques used to capture the phenomenon of electrical coronal discharges. It is named after Semyon Kirlian, who, in 1939, accidentally discovered that if an object on a photographic plate is connected to a high-voltage source, an image is produced on the photographic plate.Julie McCarron-Benson in ''Skeptical - a Handbook of Pseudoscience and the Paranormal'', ed Donald Laycock, David Vernon, Colin Groves, Simon Brown, Imagecraft, Canberra, 1989, , p11 The technique has been variously known as "electrography", "electrophotography", "corona discharge photography" (CDP), "bioelectrography", "gas discharge visualization (GDV)", "electrophotonic imaging (EPI)", and, in Russian literature, "Kirlianography". Kirlian photography has been the subject of scientific research, parapsychology research, and art. Paranormal claims have been made about Kirlian photography, but these claims are rejected by the scientific community.Singer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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