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Cosi
COSI (), officially the Center of Science and Industry, is a science museum and research center in Columbus, Ohio. COSI was opened to the public on 29 March 1964 and remained there for 35 years. In 1999, COSI was moved to a facility, designed by Japanese architect Arata Isozaki along a bend in the Scioto River in the Franklinton neighborhood. COSI features more than 300 interactive exhibits throughout themed exhibition areas. Until the COVID-19 pandemic, COSI operated the largest outreach education program of any science museum in the United States. Anchored by COSI on Wheels – a whole-school outreach program traveling throughout Ohio and the surrounding Midwest – as well as local COSI on Wheels Workshops, Camp COSI on Wheels, and Interactive Videoconference programs reaching learners each year outside of the museum at their peak. As a non-profit organization, COSI is supported by ticket sales, a network of community and statewide partnerships (including relationships w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorrian Green
Dorrian Green is a park by the Franklinton (Columbus, Ohio), Franklinton neighborhood of Columbus, Ohio. The park is part of the Scioto Mile network of parks and trails around Downtown Columbus (Ohio), downtown Columbus. Dorrian Green neighbors COSI, the city's science and children's museum. The park has numerous gardens: sensory, reading, butterfly and pollinator, and prairie. There is a plaza with an interactive fountain, flanked by two pavilions and flowering cherry tree groves. The park's northwest and southwest corners have salvaged limestone structures salvaged from the Central High School (Columbus, Ohio), Central High School building that was repurposed and expanded into COSI. There are play areas for children and adults. "The Spectrum Tree", a kinetic tree-shaped sculpture, references Isaac Newton's discovery that sunlight contains the entire spectrum of colors. The park is named for Hugh J. Dorrian, the city's treasurer and auditor, working for the city for 52 years. Do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laminar Flow
Laminar flow () is the property of fluid particles in fluid dynamics to follow smooth paths in layers, with each layer moving smoothly past the adjacent layers with little or no mixing. At low velocities, the fluid tends to flow without lateral mixing, and adjacent layers slide past one another smoothly. There are no cross-currents perpendicular to the direction of flow, nor eddies or swirls of fluids. In laminar flow, the motion of the particles of the fluid is very orderly with particles close to a solid surface moving in straight lines parallel to that surface. Laminar flow is a flow regime characterized by high momentum diffusion and low momentum convection. When a fluid is flowing through a closed channel such as a pipe or between two flat plates, either of two types of flow may occur depending on the velocity and viscosity of the fluid: laminar flow or turbulent flow. Laminar flow occurs at lower velocities, below a threshold at which the flow becomes turbulent. The thresh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnets
A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, etc. and attracts or repels other magnets. A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. An everyday example is a refrigerator magnet used to hold notes on a refrigerator door. Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include the elements iron, nickel and cobalt and their alloys, some alloys of rare-earth metals, and some naturally occurring minerals such as lodestone. Although ferromagnetic (and ferrimagnetic) materials are the only ones attracted to a magnet strongly enough to be commonly considered magnetic, all other substances respond weakly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasma Globe
A plasma ball, plasma globe, or plasma lamp is a clear glass container filled with noble gases, usually a mixture of neon, krypton, and xenon, that has a high-voltage electrode in the center of the container. When voltage is applied, a plasma (physics), plasma is formed within the container. Plasma (physics)#Filamentation, Plasma filaments extend from the inner electrode to the outer glass insulator, giving the appearance of multiple constant beams of colored light. Plasma balls were popular as novelty items in the 1980s. The plasma lamp was invented by Nikola Tesla, during his experimentation with high-frequency electric current, currents in an evacuated glass vacuum tube, tube for the purpose of studying high voltage phenomena. Tesla called his invention an "inert gas Gas discharge tube, discharge tube". The modern plasma lamp design was developed by James Falk and MIT student Bill Parker (MIT), Bill Parker. A crackle tube is a related device filled with phosphor-coated beads. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulleys
Sheave without a rope A pulley is a wheel on an axle or shaft enabling a taut cable or belt passing over the wheel to move and change direction, or transfer power between itself and a shaft. A pulley may have a groove or grooves between flanges around its circumference to locate the cable or belt. The drive element of a pulley system can be a rope, cable, belt, or chain. History The earliest evidence of pulleys dates back to Ancient Egypt in the Twelfth Dynasty (1991–1802 BC) and Mesopotamia in the early 2nd millennium BC. In Roman Egypt, Hero of Alexandria (c. 10–70 AD) identified the pulley as one of six simple machines used to lift weights. Pulleys are assembled to form a block and tackle in order to provide mechanical advantage to apply large forces. Pulleys are also assembled as part of belt and chain drives in order to transmit power from one rotating shaft to another. Plutarch's ''Parallel Lives'' recounts a scene where Archimedes proved the effectivene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Progress (history)
Progress is movement towards a perceived refined, improved, or otherwise desired state. It is central to the philosophy of progressivism, which interprets progress as the set of advancements in technology, science, and social organization efficiency – the latter being generally achieved through direct societal action, as in social enterprise or through activism, but being also attainable through natural sociocultural evolution – that progressivism holds all human societies should strive towards. The concept of progress was introduced in the early-19th-century social theories, especially social evolution as described by Auguste Comte and Herbert Spencer. It was present in the Enlightenment's philosophies of history. As a goal, social progress has been advocated by varying realms of political ideologies with different theories on how it is to be achieved. Measuring progress Specific indicators for measuring progress can range from economic data, technical innovations, chan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mezzanine
A mezzanine (; or in Italian, a ''mezzanino'') is an intermediate floor in a building which is partly open to the double-height ceilinged floor below, or which does not extend over the whole floorspace of the building, a loft with non-sloped walls. However, the term is often used loosely for the floor above the ground floor, especially where a very high-ceilinged original ground floor has been split horizontally into two floors. Mezzanines may serve a wide variety of functions. Industrial mezzanines, such as those used in warehouses, may be temporary or semi-permanent structures. In Royal Italian architecture, ''mezzanino'' also means a chamber created by partitioning that does not go up all the way to the arch vaulting or ceiling; these were historically common in Italy and France, for example in the palaces for the nobility at the Quirinal Palace. Definition A mezzanine is an intermediate floor (or floors) in a building which is open to the floor below. It is placed half ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apollo 11
Apollo 11 was a spaceflight conducted from July 16 to 24, 1969, by the United States and launched by NASA. It marked the first time that humans Moon landing, landed on the Moon. Commander Neil Armstrong and Lunar Module pilot Buzz Aldrin landed the Lunar Module Eagle, Lunar Module ''Eagle'' on July 20, 1969, at 20:17 Coordinated Universal Time, UTC, and Armstrong became the first person to step onto the Moon's surface six hours and 39 minutes later, on July 21 at 02:56 UTC. Aldrin joined him 19 minutes later, and they spent about two and a quarter hours together exploring the site they had named Tranquility Base upon landing. Armstrong and Aldrin collected of lunar material to bring back to Earth as pilot Michael Collins (astronaut), Michael Collins flew the Command Module Columbia, Command Module ''Columbia'' in lunar orbit, and were on the Moon's surface for 21 hours, 36 minutes, before lifting off to rejoin ''Columbia''. Apollo 11 was launched by a Saturn V rocket from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Hole
A black hole is a massive, compact astronomical object so dense that its gravity prevents anything from escaping, even light. Albert Einstein's theory of general relativity predicts that a sufficiently compact mass will form a black hole. The boundary (topology), boundary of no escape is called the event horizon. A black hole has a great effect on the fate and circumstances of an object crossing it, but has no locally detectable features according to general relativity. In many ways, a black hole acts like an ideal black body, as it reflects no light. Quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with thermal radiation, the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is of the Orders of magnitude (temperature), order of billionths of a kelvin for stellar black holes, making it essentially impossible to observe directly. Objects whose gravitational fields are too strong for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury-Atlas 6
Mercury-Atlas 6 (MA-6) was the first crewed American orbital spaceflight, which took place on February 20, 1962. Piloted by astronaut John Glenn and operated by NASA as part of Project Mercury, it was the fifth human spaceflight, preceded by Soviet orbital flights Vostok 1 and 2 and American sub-orbital flights Mercury-Redstone 3 and 4. The Mercury spacecraft, named ''Friendship 7'', was carried to orbit by an Atlas LV-3B launch vehicle lifting off from Launch Complex 14 at Cape Canaveral, Florida. After three orbits, the spacecraft re-entered the Earth's atmosphere, splashed down in the North Atlantic Ocean, and was safely taken aboard . The total mission flight time was 4 hours 55 minutes and 23 seconds. Preparation After the successful completion of the Mercury-Atlas 5 flight that carried Enos, a chimpanzee, in late November 1961, a press conference was held in early December. Reporters asked NASA's Robert Gilruth who would be the first U.S. astronaut in orbit, pilo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Glenn
John Herschel Glenn Jr. (July 18, 1921 – December 8, 2016) was an American Marine Corps aviator, astronaut, businessman, and politician. He was the third American in space and the first to orbit the Earth, circling it three times in 1962. Following his retirement from NASA, he served from 1974 to 1999 as a United States Senate, U.S. Senator from Ohio; in 1998, he flew into space again at the age of 77. Before joining NASA, Glenn was a distinguished fighter pilot in World War II, the Operation Beleaguer, Chinese Civil War, and the Korean War. He shot down three MiG-15s and was awarded six Distinguished Flying Cross (United States), Distinguished Flying Crosses and eighteen Air Medals. In 1957, he made the first supersonic transcontinental flight across the United States. His on-board camera took the first continuous, panoramic photograph of the United States. Glenn was one of the Mercury Seven military test pilots selected in 1959 by NASA as the nation's first astron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
