|
Streamlight
Streamlight is a company located in Eagleville, Pennsylvania, United States, that manufactures flashlights powered by various rechargeable and disposable batteries. Their product line features hand-held and weapon-mountable lights as well as a right angle light used by firefighters on their turnout gear. Several of their products utilize dual sources, combining the long life of LED lamps with more powerful but shorter-lived conventional incandescent lamps. They also produce a series of Laser Illuminators such as the one of their newest models the TLR-8 which is a combination LED weapon light and laser. Streamlight developed a handheld 1 million candlepower (981,000 candela) searchlight as a commercial spin-off of technology developed by Johnson Space Center for NASA as part of the Apollo program. After the handheld design was perfected, the company was moved to King of Prussia, Pennsylvania by a private investor. In 1977, the headquarters was moved to Norristown, Penns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eagleville, Montgomery County, Pennsylvania
Eagleville is a census-designated place (CDP) in Montgomery County, Pennsylvania, Montgomery County, Pennsylvania, United States. The population was 4,800 at the 2010 United States Census, 2010 census. It is within Lower Providence Township, Montgomery County, Pennsylvania, Lower Providence Township.2010 CENSUS - CENSUS BLOCK MAP: Eagleville CDP, PA " U.S. Census Bureau. Retrieved on September 26, 2018. See in th Census index map for Lower Providence Township and page [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA Spin-off Technologies
NASA spinoff technologies are commercial products and services which have been developed with the help of NASA, through research and development contracts, such as Small Business Innovation Research (SBIR) or STTR awards, licensing of NASA patents, use of NASA facilities, technical assistance from NASA personnel, or data from NASA research. Information on new NASA technology that may be useful to industry is available in periodical and website form in "NASA Tech Briefs", while successful examples of commercialization are reported annually in the NASA publication "Spinoffs". The Spinoff publication has documented more than 2,000 technologies over time. In 1979, notable science fiction author Robert A. Heinlein helped bring awareness to the spinoffs when he was asked to appear before Congress after recovering from one of the earliest known vascular bypass operations to correct a blocked artery. In his testimony, reprinted in his 1980 book '' Expanded Universe'', Heinlein claimed tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flashlight
A flashlight (American English, US, Canadian English, Canada) or torch (British English, UK, Australian English, Australia) is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes (LEDs) since the mid-2000s. A typical flashlight consists of the light source mounted in a reflector, a transparent cover (sometimes combined with a Lens (optics), lens) to protect the light source and reflector, a battery (electricity), battery, and a switch, all enclosed in a case. The invention of the dry cell and miniature incandescent electric lamps made the first battery-powered flashlights possible around 1899. Today, flashlights use mostly light-emitting diodes and run on Disposable battery, disposable or rechargeable battery, rechargeable batteries. Some are powered by the user turning a Crank (mechanism), crank, shaking the lamp, or squeezing it. Some have solar panels to rech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norristown, Pennsylvania
Norristown is a municipality with home rule status and the county seat of Montgomery County, Pennsylvania, United States, in the Philadelphia metropolitan area. Located along the Schuylkill River, approximately from the Philadelphia city limits, Norristown had a population of 34,324 as of the 2010 U.S. Census. It is the fourth most populous municipality in the county and second most populous borough in Pennsylvania. It is the largest non-township municipality in Montgomery County and is located southeast of Allentown and northwest of Philadelphia, the sixth largest city in the United States. History The area where Norristown sits was originally owned by the family of Isaac Norris. Along with William Trent, Norris purchased the land on October 7, 1704, for 50¢ per acre. In 1712, Norris acquired Trent's share and established a gristmill at the foot of present-day Water Street. Named the county seat in 1784 when Montgomery County was formed, Norristown was incorporated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King Of Prussia, Pennsylvania
King of Prussia (also referred to as KOP) is a census-designated place in Upper Merion Township in Montgomery County, Pennsylvania, United States. As of the 2020 census, its population was 22,028. The community took its unusual name in the 18th century from a local tavern named the King of Prussia Inn, which was named after King Frederick the Great of Prussia. Like the rest of Montgomery County, King of Prussia continues to experience rapid development. One of the largest shopping malls in the United States, King of Prussia, is located here. Also located here is the headquarters of the Nuclear Regulatory Commission Region I. King of Prussia is considered to be an edge city of Philadelphia, consisting of large amounts of retail and office space situated at the convergence of four highways. King of Prussia is located southeast of Allentown and northwest of Philadelphia. History The eponymous King of Prussia Inn was originally constructed as a cottage in 1719 by the Welsh Quake ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the US federal government responsible for the civil List of government space agencies, space program, aeronautics research, and outer space, space research. NASA was National Aeronautics and Space Act, established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo program, Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion (spacecraft), Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew Program, Commercial Crew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johnson Space Center
The Lyndon B. Johnson Space Center (JSC) is NASA's center for human spaceflight (originally named the Manned Spacecraft Center), where human spaceflight training, research, and flight control are conducted. It was renamed in honor of the late US president and Texas native, Lyndon B. Johnson, by an act of the United States Senate on February 19, 1973. It consists of a complex of 100 buildings constructed on in the Clear Lake Area of Houston, which acquired the official nickname "Space City" in 1967. The center is home to NASA's astronaut corps, and is responsible for training astronauts from both the US and its international partners. It houses the Christopher C. Kraft Jr. Mission Control Center, which has provided the flight control function for every NASA human spaceflight since Gemini 4 (including Apollo, Skylab, Apollo–Soyuz, and Space Shuttle). It is popularly known by its radio call signs "Mission Control" and "Houston". The original Manned Spacecraft Center grew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Candela
The candela ( or ; symbol: cd) is the unit of luminous intensity in the International System of Units (SI). It measures luminous power per unit solid angle emitted by a light source in a particular direction. Luminous intensity is analogous to radiant intensity, but instead of simply adding up the contributions of every wavelength of light in the source's spectrum, the contribution of each wavelength is weighted by the standard luminosity function (a model of the sensitivity of the human eye to different wavelengths). A common wax candle emits light with a luminous intensity of roughly one candela. If emission in some directions is blocked by an opaque barrier, the emission would still be approximately one candela in the directions that are not obscured. The word ''candela'' is Latin for ''candle''. The old name "candle" is still sometimes used, as in ''foot-candle'' and the modern definition of ''candlepower''. Definition The 26th General Conference on Weights and Measures ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flashlight
A flashlight (American English, US, Canadian English, Canada) or torch (British English, UK, Australian English, Australia) is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes (LEDs) since the mid-2000s. A typical flashlight consists of the light source mounted in a reflector, a transparent cover (sometimes combined with a Lens (optics), lens) to protect the light source and reflector, a battery (electricity), battery, and a switch, all enclosed in a case. The invention of the dry cell and miniature incandescent electric lamps made the first battery-powered flashlights possible around 1899. Today, flashlights use mostly light-emitting diodes and run on Disposable battery, disposable or rechargeable battery, rechargeable batteries. Some are powered by the user turning a Crank (mechanism), crank, shaking the lamp, or squeezing it. Some have solar panels to rech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Candlepower
Candlepower (abbreviated as cp or CP) is a unit of measurement for luminous intensity. It expresses levels of light intensity relative to the light emitted by a candle of specific size and constituents. The historical candlepower is equal to 0.981 candelas. In modern usage, ''candlepower'' is sometimes used as a synonym for ''candela''. History The term candlepower was originally defined in the United Kingdom, by the Metropolitan Gas Act 1860, as the light produced by a pure spermaceti candle that weighs and burns at a rate of . Spermaceti is a material from the heads of sperm whales, and was once used to make high-quality candles. At the time the UK established candlepower as a unit, the French standard of light was based on the illumination from a Carcel burner. They defined the unit was that illumination that emanates from a lamp burning pure colza oil (obtained from the seed of the plant '' Brassica campestris'') at a defined rate. Ten standard candles equaled about one Car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser Applications
Many scientific, military, medical and commercial laser applications have been developed since the invention of the laser in 1958. The coherency, high monochromaticity, and ability to reach extremely high powers are all properties which allow for these specialized applications. Scientific In science, lasers are used in many ways, including: * A wide variety of interferometric techniques'' * Raman spectroscopy * Laser induced breakdown spectroscopy * Atmospheric '' remote sensing'' * Investigating nonlinear optics phenomena * Holographic techniques employing lasers also contribute to a number of measurement techniques. * Laser based lidar (LIght raDAR) technology has application in geology, seismology, remote sensing and atmospheric physics. * Lasers have been used aboard spacecraft such as in the Cassini-Huygens mission. * In astronomy, lasers have been used to create artificial '' laser guide stars'', used as reference objects for adaptive optics telescopes. Las ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
