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Hat Creek Radio Observatory
The Hat Creek Radio Observatory (HCRO) is operated by SRI International in the Western United States. The observatory is home to the Allen Telescope Array designed and owned by the SETI Institute in Mountain View, CA. Location Hat Creek Radio Observatory is located approximately northeast of San Francisco, California at an elevation of 986 m (3235 ft) above Sea Level in Hat Creek, California (in Shasta County). Latitude: 40° 49' 03" N; longitude: 121° 28' 24" W. The nearest large city to Hat Creek is Redding, California on highway I-5. History HCRO was founded in the late 1950s by the newly created Radio Astronomy Laboratory (an Organized Research Unit of the Astronomy Department at the University of California, Berkeley). An 85-foot antenna was installed in 1962 and operated until 1993, when it collapsed during a wind storm. Using it, astronomers discovered the first astrophysical maser. The university managed the facility until 2012, when SRI International a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SRI International
SRI International (SRI) is an American nonprofit scientific research institute and organization headquartered in Menlo Park, California. The trustees of Stanford University established SRI in 1946 as a center of innovation to support economic development in the region. The organization was founded as the Stanford Research Institute. SRI formally separated from Stanford University in 1970 and became known as SRI International in 1977. SRI performs client-sponsored research and development for government agencies, commercial businesses, and private foundations. It also licenses its technologies, forms strategic partnerships, sells products, and creates spin-off companies. SRI's headquarters are located near the Stanford University campus. SRI's annual revenue in 2014 was approximately $540 million, which tripled from 1998 under the leadership of Curtis Carlson. In 1998, the organization was on the verge of bankruptcy when Carlson took over as CEO. Over the next sixteen years wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Astronomy Laboratory
The Radio Astronomy Lab (RAL) is an Organized Research Unit (ORU) within the Astronomy Department at the University of California, Berkeley. It was founded by faculty member Harold Weaver in 1958. Until 2012, RAL maintained a radio astronomy observatory at Hat Creek, near Mt. Lassen. It continues to support on-campus laboratory facilities in Campbell Hall. From 1998 to 2012, the RAL collaborated with the SETI Institute of Mountain View California to design, build and operate the Allen Telescope Array (ATA). RAL has been central to the creation of several radio observatories, including: * Hat Creek Radio Observatory (HCRO), * the Allen Telescope Array (ATA), * the Berkeley-Illinois-Maryland Association (BIMA) array, * the Combined Array for Research in Millimeter-wave Astronomy (CARMA) array, * the Precision Array for Probing the Epoch of Reionization (PAPER) array Research Interests * Millimeter-wavelength interferometry * Very Long Baseline Interferometry * Low-frequency radi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Shasta County, California
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomical Observatories In California
Astronomy () is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole. Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky. These include the Babylonians, Greeks, Indians, Egyptians, Chinese, Maya, and many ancient indigenous peoples of the Americas. In the past, astronomy included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars. Nowadays, professional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combined Array For Research In Millimeter-wave Astronomy
The Combined Array for Research in Millimeter-wave Astronomy (CARMA) was an astronomical instrument comprising 23 radio telescopes, dedicated in 2006. These telescopes formed an astronomical interferometer where all the signals are combined in a purpose-built computer (a correlator) to produce high-resolution astronomical images. The telescopes ceased operation in April 2015 and were relocated to the Owens Valley Radio Observatory for storage. The Atacama Large Millimeter Array in Chile has succeeded CARMA as the most powerful millimeter wave interferometer in the world. Location According to the CARMA observatory catalog, the median height of all telescope pads was at an elevation of . The observatory was located in the Inyo Mountains to the east of the Owens Valley Radio Observatory, at a site called Cedar Flat (after relocating thCedar Flat Group Campsto the west of Hwy-168), accessed through Westgard Pass. The high elevation site was chosen to minimize millimeter wave abso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BIMA
Bima (Indonesia: ''Kota Bima'') is a city on the eastern coast of the island of Sumbawa in central Indonesia's province West Nusa Tenggara. It is the largest city on the island of Sumbawa, with a population of 142,443 at the 2010 census and 155,140 at the 2020 census; the official estimate as at mid 2021 was 156,224. It is separate from (but surrounded on the landward side by) the adjoining Regency of Bima which had a population of 520,444 according to the mid 2021 official estimates.. The people of Bima and the entire eastern side of Sumbawa speak what is known as Bima language (Indonesia: ''Bahasa Bima'' ; Bima: ''Nggahi Mbojo''). From 1620 to 1958 it was the capital of the Bima Sultanate. In modern times, Bima is the largest regional and economic hub of Eastern Sumbawa with transmigrants from other parts of Indonesia, especially Java, Bali, and Lombok. It has a central downtown commercial zone. It is home to the Sultan Salahuddin mosque and the Sultan Salahuddin museum (forme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrophysical Maser
An astrophysical maser is a naturally occurring source of stimulated spectral line emission, typically in the microwave portion of the electromagnetic spectrum. This emission may arise in molecular clouds, comets, planetary atmospheres, stellar atmospheres, or various other conditions in interstellar space. Background Discrete transition energy Like a laser, the emission from a maser is stimulated (or ''seeded'') and monochromatic, having the frequency corresponding to the energy difference between two quantum-mechanical energy levels of the species in the gain medium which have been pumped into a non-thermal population distribution. However, naturally occurring masers lack the resonant cavity engineered for terrestrial laboratory masers. The emission from an astrophysical maser is due to a single pass through the gain medium and therefore generally lacks the spatial coherence and mode purity expected from a laboratory maser. Nomenclature Due to the differences between en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant university and the founding campus of the University of California system. Its fourteen colleges and schools offer over 350 degree programs and enroll some 31,800 undergraduate and 13,200 graduate students. Berkeley ranks among the world's top universities. A founding member of the Association of American Universities, Berkeley hosts many leading research institutes dedicated to science, engineering, and mathematics. The university founded and maintains close relationships with three national laboratories at Berkeley, Livermore and Los Alamos, and has played a prominent role in many scientific advances, from the Manhattan Project and the discovery of 16 chemical elements to breakthroughs in computer science and genomics. Berkeley is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Redding, California
Redding is the economic and cultural capital of the Shasta Cascade region of Northern California and the county seat of Shasta County. Redding lies along the Sacramento River, north of Sacramento, and south of California's northern border with Oregon. Its population is 95,542 as of the 2022 census, up from 89,861 from the 2010 census. Etymology During the Gold Rush, the area that now comprises Redding was called Poverty Flats. In 1868 the first land agent for the Central Pacific Railroad, a former Sacramento politician named Benjamin Bernard Redding, bought property in Poverty Flats on behalf of the railroad so that it could build a northern terminus there. In the process of building the terminus, the railroad also built a town in the same area, which they named Redding in honor of Benjamin Redding. In 1874 there was a dispute over the name by local legislators and it was changed for a time to Reading, in order to honor Pierson B. Reading, who arrived in the area in 1843 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western United States
The Western United States (also called the American West, the Far West, and the West) is the region comprising the westernmost states of the United States. As American settlement in the U.S. expanded westward, the meaning of the term ''the West'' changed. Before about 1800, the crest of the Appalachian Mountains was seen as the western frontier. The frontier moved westward and eventually the lands west of the Mississippi River were considered the West. The U.S. Census Bureau's definition of the 13 westernmost states includes the Rocky Mountains and the Great Basin to the Pacific Coast, and the mid-Pacific islands state, Hawaii. To the east of the Western United States is the Midwestern United States and the Southern United States, with Canada to the north, and Mexico to the south. The West contains several major biomes, including arid and semi-arid plateaus and plains, particularly in the American Southwest; forested mountains, including three major ranges, the Sierra Neva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shasta County, California
Shasta County (), officially the County of Shasta, is a County (United States), county in the Northern California, northern portion of the U.S. state of California. Its population is 182,155 as of the 2020 census, up from 177,223 from the 2010 census. The county seat is Redding, California, Redding. Shasta County comprises the Redding, California Metropolitan Statistical Area. The county occupies the northern reaches of the Sacramento Valley, with portions extending into the southern reaches of the Cascade Range. Points of interest in Shasta County include Shasta Lake, Lassen Peak, and the Sundial Bridge. History Shasta County was one of the original counties of California, created in 1850 at the time of statehood. The county was named after Mount Shasta; the name is derived from the English language, English equivalent for the Shasta people. Their population declined in the 1850s due to disease, low birth rates, starvation, killings, and massacres as white settlers moved in. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hat Creek, California
Hat Creek is a census designated place (CDP) in Shasta County, California. Hat Creek is situated at an elevation of 3,422 feet (1,043 m). Its population is 266 as of the 2020 census, down from 309 from the 2010 census. Hat Creek is located 26 miles (42 km) north of Lassen Park, 13 miles (21 km) southeast of Burney (9 miles (14 km) south of the junction of hwy 89 and 299), and 15 miles (24 km) south of Burney Falls. Its zip code is 96040. Wired telephone numbers are from the Burney central office and follow the pattern 530-335-xxxx. Hat Creek is home to the Hat Creek Radio Observatory, run by SETI Institute. The town's main economies are tourism, fishing, camping, and lodging. It's a travel hot spot in Shasta County, about 70 miles (110 km) east of Redding, California and about the same distance to Susanville, California. In 2021 the town was threatened by the Dixie Fire. Geography According to the United States Census Bureau, the CDP covers an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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