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Smudge Pot
A smudge pot (also known as a choofa or orchard heater) is an oil-burning device used to prevent frost on fruit trees. Usually a smudge pot has a large round base with a chimney coming out of the middle of the base. The smudge pot is placed between trees in an orchard. The burning oil creates heat, smoke, carbon dioxide, and water vapor. It was believed that this oil burning heater would help keep the orchard from cooling too much during the cold snaps. History In 1907, a young inventor, W. C. Scheu, at that time in Grand Junction, Colorado, developed an oil-burning stack heater that was more effective than open fires in heating orchards and vineyards. In 1911, he opened Scheu Manufacturing Company in Upland, California, and began producing a line of orchard heaters. Scheu Steel is still in business, in 2021. The use of smudge pots became widespread after a disastrous freeze in Southern California, January 4–8, 1913, wiped out a whole crop. Smudge pots were commonly used for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida Smudge Pot
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to the south by the Straits of Florida and Cuba; it is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. Spanning , Florida ranks 22nd in area among the 50 states, and with a population of over 21 million, it is the third-most populous. The state capital is Tallahassee, and the most populous city is Jacksonville. The Miami metropolitan area, with a population of almost 6.2 million, is the most populous urban area in Florida and the ninth-most populous in the United States; other urban conurbations with over one million people are Tampa Bay, Orlando, and Jacksonville. Various Native American groups have inhabited Florida for at least 14,000 years. In 1513, Spanish explorer Juan Ponce de León became the first know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquid Fuel
Liquid fuels are combustible or energy-generating molecules that can be harnessed to create mechanical energy, usually producing kinetic energy; they also must take the shape of their container. It is the fumes of liquid fuels that are flammable instead of the fluid. Most liquid fuels in widespread use are derived from fossil fuels; however, there are several types, such as hydrogen fuel (for automotive uses), ethanol, and biodiesel, which are also categorized as a liquid fuel. Many liquid fuels play a primary role in transportation and the economy. Liquid fuels are contrasted with solid fuels and gaseous fuels. General properties Some common properties of liquid fuels are that they are easy to transport, and can be handled with relative ease. Physical properties of liquid fuels vary by temperature, though not as greatly as for gaseous fuels. Some of these properties are: flash point, the lowest temperature at which a flammable concentration of vapor is produced; fire point, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Redlands East Valley High School
Redlands East Valley High School is a public English medium co-educational high school in Redlands, California, United States, near the San Bernardino Mountains. The school opened in the 1997-1998 school year as part of the Redlands Unified School District. Description Redlands East Valley is a comprehensive high school located on a sloping site, designed to house 2,500 students. An element in the design was a focus on the media center and its application of technology. The majority of the building exteriors are built with concrete masonry, exposed structural steel, glass, and metal roofs. The school colors and mascot were chosen to contrast cross-town rival Redlands High School, an example being how Redlands East Valley has a Wildcat and Redlands High has a Terrier. The school cost US$35,000,000 (41 million 1995) to build and was completed in September 1997. The roof of the Media Center Library was designed to look like an opened book. The performing arts building was design ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Redlands High School
Redlands High School is a high school located in Redlands, California, alongside Redlands East Valley High School and Citrus Valley High School. It is the oldest Californian public high school still functioning on its original site. History The school was originally built in 1891 as a "unified high school" formed from three elementary school districts. Its auditorium was completed in 1928. The Girls' Gymnasium was completed as a New Deal Era project by the Public Works Administration in 1936. Notable alumni *Dave Aranda, a college football head coach for the Baylor Bears *Robin Backhaus, a bronze medalist in the 1972 Olympics' 200M butterfly event *Joan Baez, a folksinger *Ed Vande Berg, a Major League Baseball pitcher *Brian Billick, a head coach of the Baltimore Ravens |
Southern California
Southern California (commonly shortened to SoCal) is a geographic and Cultural area, cultural region that generally comprises the southern portion of the U.S. state of California. It includes the Los Angeles metropolitan area, the second most populous urban agglomeration in the United States. The region generally contains ten of California's 58 counties: Imperial County, California, Imperial, Kern County, California, Kern, Los Angeles County, California, Los Angeles, Orange County, California, Orange, Riverside County, California, Riverside, San Bernardino County, California, San Bernardino, San Diego County, California, San Diego, Santa Barbara County, California, Santa Barbara, San Luis Obispo County, California, San Luis Obispo and Ventura County, California, Ventura counties. The Colorado Desert and the Colorado River are located on Southern California's eastern border with Arizona, and San Bernardino County shares a border with Nevada to the northeast. Southern California's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonita Unified School District
Bonita Unified School District serves the communities of San Dimas and La Verne, and part of Glendora, in Los Angeles County. The Bonita Unified School District has over 10,000 students in 14 schools. The district's headquarters are in San Dimas. The Board of Education members are elected at-large to a four-year term. The elections are held on a Tuesday after the first Monday in November of even-numbered years, starting with the 2018 election. Schools Elementary schools (K-5) * Allen Avenue Elementary School * Arma J. Shull Elementary School * Fred Ekstrand Elementary School * Gladstone Elementary School * Grace Miller Elementary School * J. Marion Roynon Elementary School * La Verne Heights Elementary School * Oak Mesa Elementary School Middle schools (6-8) * Lone Hill Middle School * Ramona Middle School High school (9-12) * Bonita High School * San Dimas High School * Chaparral High School (continuation high school A continuation high school is an alternativ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Dimas High School
San Dimas High School is a secondary school located in San Dimas, California, in the United States. It is part of the Bonita Unified School District. Most of the students come from Lone Hill Middle School which shares the same city block as the High School. The school has a student body of 1,296 and an API score of 839. The mascot is the Saint and was originally depicted as a knight slaying a dragon. The school is also referred to by students as SD. Its colors are royal blue and bright gold. History San Dimas High School was opened in 1970 to serve the growing population of San Dimas, California. A distinctive bell tower was built on campus in 1980 to create an icon for the main quad. The bell tower houses the bell from the original San Dimas Elementary School and is rung each time a team wins a CIF Championship. The bell tower was refurbished in 2011 with a wider base to support the structure. Each year the school plays their cross town rivals, Bonita High School, in the Smudge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonita High School
Bonita High School is a high school located in the city of La Verne, California in the foothills of the San Gabriel Mountains. Opened in 1903, it was the first high school in the Bonita Unified School District. It moved to its current campus in 1959. The majority of its students come from Ramona Middle School, which is also located in La Verne. The Bearcat athletic teams compete in the Palomares League of the CIF Southern Section. History In 1903, high school classes started on the second floor of a La Verne store. The classes were quickly moved to the building of nearby La Verne Public School (now La Verne Heights Elementary). Two teachers helped open Bonita Union High School, the first school in the Bonita Unified School District, that fall. In 1905, the school relocated to a two-story Mission-style building on Bonita Avenue. The size of the school was expanded to 23 acres in 1922. In 1959, due to the overcrowding of the school, the school was sold to the Catholic Church and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser-guided Bomb
A laser-guided bomb (LGB) is a guided bomb that uses semi-active laser guidance to strike a designated target with greater accuracy than an unguided bomb. First developed by the United States during the Vietnam War, laser-guided bombs quickly proved their value in precision strikes of difficult point targets. These weapons use on-board electronics to track targets that are designated by laser, typically in the infrared spectrum, and adjust their glide path to accurately strike the target. Since the weapon is tracking a light signature, not the object itself, the target must be illuminated from a separate source, either by ground forces, by a pod on the attacking aircraft, or by a separate support aircraft. Data from the 28,000 laser guided bombs dropped in Vietnam showed that laser-guided bombs achieved direct hits nearly 50% of the time, despite the laser having to be aimed out the side window of the back seat of another aircraft in flight. Unguided bombs had an accuracy rate o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnam War
The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vietnam and South Vietnam. The north was supported by the Soviet Union, China, and other communist states, while the south was United States in the Vietnam War, supported by the United States and other anti-communism, anti-communist Free World Military Forces, allies. The war is widely considered to be a Cold War-era proxy war. It lasted almost 20 years, with direct U.S. involvement ending in 1973. The conflict also spilled over into neighboring states, exacerbating the Laotian Civil War and the Cambodian Civil War, which ended with all three countries becoming communist states by 1975. After the French 1954 Geneva Conference, military withdrawal from Indochina in 1954 – following their defeat in the First Indochina War – the Viet Minh to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sump Oil
Cutting fluid is a type of coolant and lubricant designed specifically for metalworking processes, such as machining and stamping. There are various kinds of cutting fluids, which include oils, oil-water emulsions, pastes, gels, aerosols (mists), and air or other gases. Cutting fluids are made from petroleum distillates, animal fats, plant oils, water and air, or other raw ingredients. Depending on context and on which type of cutting fluid is being considered, it may be referred to as cutting fluid, cutting oil, cutting compound, coolant, or lubricant. Most metalworking and machining processes can benefit from the use of cutting fluid, depending on workpiece material. Common exceptions to this are cast iron and brass, which may be machined dry (though this is not true of all brasses, and any machining of brass will likely benefit from the presence of a cutting fluid). The properties that are sought after in a good cutting fluid are the ability to: * Keep the workpiece at a stabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
