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Airway Beacon
An airway beacon (US) or aerial lighthouse (UK and Europe) was a rotating light assembly mounted atop a tower. These were once used extensively in the United States for Visual meteorological conditions, visual navigation by airplane pilots along a specified airway (aviation), airway Air corridor, corridor. In Europe, they were used to guide aircraft with lighted beacons at night. UK and Europe United Kingdom A network of aerial lighthouses was established in the United Kingdom and Europe during the 1920s and 1930s. Use of the lighthouses has declined with the advent of radio navigation aids such as Non-directional beacon, NDB (non-directional beacon), VHF omnidirectional range, VOR (VHF omnidirectional ranging) and Distance measuring equipment, DME (distance measuring equipment). The last operational aerial lighthouse in the United Kingdom is on top of the cupola over the RAF College main hall at RAF Cranwell. Netherlands In the Netherlands, gas holders were painted with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NIMH 2011-3625 Luchtfoto Van Leeuwarden, Friesland, Nederland, Circa 1920-1940
NIMH may refer to: *Nickel–metal hydride battery (NiMH), a type of electrical battery *National Institute of Mental Health, an agency of the United States government *National Institute of Medical Herbalists, a professional organisation in the United Kingdom *''Rats of NIMH'', a series of children's books *''The Secret of NIMH'', a 1982 animated film *''The Secret of NIMH 2: Timmy to the Rescue'', a 1998 direct-to-video animated film See also * * {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Postal Service
The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or simply the Postal Service, is an independent agencies of the United States government, independent agency of the executive branch of the federal government of the United States, United States federal government responsible for providing mail, postal service in the United States, its insular areas and Compact of Free Association, associated states. It is one of a few government agencies Postal Clause, explicitly authorized by the Constitution of the United States. As of March 29, 2024, the USPS has 525,377 career employees and nearly 114,623 pre-career employees. The USPS has a monopoly on traditional Letter (message), letter delivery within the U.S. and operates under a Universal service, universal service obligation (USO), both of which are defined across a broad set of legal mandates, which obligate it to provide uniform price and quality across the entirety of its service area. The Post ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Mounds Park Airway Beacon
Indian or Indians may refer to: Associated with India * of or related to India ** Indian people ** Indian diaspora ** Languages of India ** Indian English, a dialect of the English language ** Indian cuisine Associated with indigenous peoples of the Americas * Indigenous peoples of the Americas ** First Nations in Canada ** Native Americans in the United States ** Indigenous peoples of the Caribbean ** Indigenous languages of the Americas Places * Indian, West Virginia, U.S. * The Indians, an archipelago of islets in the British Virgin Islands Arts and entertainment Film * ''Indian'' (film series), a Tamil-language film series ** ''Indian'' (1996 film) * ''Indian'' (2001 film), a Hindi-language film Music * Indians (musician), Danish singer Søren Løkke Juul * "The Indian", an unreleased song by Basshunter * "Indian" (song), by Sturm und Drang, 2007 * "Indians" (song), by Anthrax, 1987 * Indians, a song by Gojira from the 2003 album '' The Link'' Other uses in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Associated Press
The Associated Press (AP) is an American not-for-profit organization, not-for-profit news agency headquartered in New York City. Founded in 1846, it operates as a cooperative, unincorporated association, and produces news reports that are distributed to its members, major U.S. daily newspapers and radio and television broadcasters. Since the award was established in 1917, the AP has earned 59 Pulitzer Prizes, including 36 for photography. The AP is also known for its widely used ''AP Stylebook'', its AP polls tracking National Collegiate Athletic Association, NCAA sports, sponsoring the National Football League's annual awards, and its election polls and results during Elections in the United States, US elections. By 2016, news collected by the AP was published and republished by more than 1,300 newspapers and broadcasters. The AP operates 235 news bureaus in 94 countries, and publishes in English, Spanish, and Arabic. It also operates the AP Radio Network, which provides twice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morse Code
Morse code is a telecommunications method which Character encoding, encodes Written language, text characters as standardized sequences of two different signal durations, called ''dots'' and ''dashes'', or ''dits'' and ''dahs''. Morse code is named after Samuel Morse, one of the early developers of the system adopted for electrical telegraphy. International Morse code encodes the 26 ISO basic Latin alphabet, basic Latin letters to , one Diacritic, accented Latin letter (), the Arabic numerals, and a small set of punctuation and procedural signals (Prosigns for Morse code, prosigns). There is no distinction between upper and lower case letters. Each Morse code symbol is formed by a sequence of ''dits'' and ''dahs''. The ''dit'' duration can vary for signal clarity and operator skill, but for any one message, once the rhythm is established, a beat (music), half-beat is the basic unit of time measurement in Morse code. The duration of a ''dah'' is three times the duration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parabolic Mirror
A parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid, that is, the surface generated by a parabola revolving around its axis. The parabolic reflector transforms an incoming plane wave travelling along the axis into a spherical wave converging toward the focus. Conversely, a spherical wave generated by a point source placed in the focus is reflected into a plane wave propagating as a collimated beam along the axis. Parabolic reflectors are used to collect energy from a distant source (for example sound waves or incoming star light). Since the principles of reflection are reversible, parabolic reflectors can also be used to collimate radiation from an isotropic source into a parallel beam. In optics, parabolic mirrors are used to gather light in reflecting telescopes and solar furnaces, and project a beam of light in f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grants, New Mexico
Grants is a city in Cibola County, New Mexico, United States. It is located about west of Albuquerque. The population was 9,163 at the 2020 Census. It is the county seat of Cibola County. Grants is located along the Trails of the Ancients Byway, one of the designated New Mexico Scenic Byways.Trail of the Ancients. New Mexico Tourism Department. Retrieved August 14, 2014. History Grants began as a railroad camp in the 1880s, when three Canadian brothers – Angus A. Grant, John R. Grant, and Lewis A. Grant – were awarded a contract to build a section of the Atlantic and Pacific Railroad through the region. The Grant brothers' camp was first called Grants Camp, then Grants St ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portland, Oregon
Portland ( ) is the List of cities in Oregon, most populous city in the U.S. state of Oregon, located in the Pacific Northwest region. Situated close to northwest Oregon at the confluence of the Willamette River, Willamette and Columbia River, Columbia rivers, it is the county seat of Multnomah County, Oregon, Multnomah County, Oregon's most populous county. Portland's population was 652,503, making it the List of United States cities by population, 28th most populous city in the United States, the sixth most populous on the West Coast of the United States, West Coast, and the third most populous in the Pacific Northwest after Seattle and Vancouver. Approximately 2.5 million people live in the Portland metropolitan area, Oregon, Portland metropolitan area, making it the List of metropolitan statistical areas, 26th most populous in the United States. Almost half of Oregon's population resides within the Portland metro area. Named after Portland, Maine, which is itself named aft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocky Butte
Rocky Butte (previously known as Mowich Illahee and Wiberg Butte) is an extinct cinder cone butte in Portland, Oregon, United States. It is also part of the Boring Lava Field, a group of volcanic vents and lava flows throughout Oregon and Washington state. The volcano erupted between 285,000 and 500,000 years ago. As part of the Boring Lava Field, Rocky Butte is considered an outlier of the Cascade Range. It was produced by the subduction of the oceanic Juan de Fuca tectonic plate under the North American tectonic plate; it is the core remnant of intrusive rock from kilate Pleistocene volcano. The butte has a calc-alkaline composition and consists of basaltic andesite with olivine phenocrysts. Historically, the butte was the home of the Rocky Butte Jail, Judson Baptist College, and Hill Military Academy, as well as an extensive Works Progress Administration construction project, Portland Bible College and a campus for the City Bible Church; at the summit of Rocky Butte t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mississippi River
The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Itasca in northern Minnesota, it flows generally south for to the Mississippi River Delta in the Gulf of Mexico. With its many tributaries, the Mississippi's Drainage basin, watershed drains all or parts of 32 U.S. states and two Canadian provinces between the Rocky Mountains, Rocky and Appalachian Mountains, Appalachian mountains. The river either borders or passes through the states of Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana. The main stem is entirely within the United States; the total drainage basin is , of which only about one percent is in Canada. The Mississippi ranks as the world's List of rivers by discharge, tenth-largest river by discharge flow, and the largest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Mounds Park (Saint Paul, Minnesota)
Wicaḣapi (previously named Indian Mounds Regional Park) is a public park in Saint Paul, Minnesota, United States, featuring six burial mounds overlooking the Mississippi River. The oldest mounds were constructed about 2,500 years ago by local Indigenous people linked to the Archaic period, who may have been inspired by the burial style known as the Hopewell Tradition. Mdewakanton Dakota people are also known to have interred their dead here well into that period. At least 31 mounds were destroyed by development in the late 19th century. This burial mound group includes the tallest mounds constructed by people Indigenous to Minnesota and Wisconsin (except for the unique Grand Mound outside International Falls, Minnesota). Wicaḣapi is a component of the Mississippi National River and Recreation Area, a unit of the National Park System. In 2014, the extant Mounds Group was listed in the National Register of Historic Places. The nomination document describes the archaeology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
