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Clayton Jacobson II
Clayton Jacobson II (October 12, 1933 – August 18, 2022) was an American inventor who was credited with inventing the jet ski. Biography Early life Jacobson was born in Multnomah County Hospital, Portland, Oregon, on October 12, 1933, to Clayton Jacobson and Sarah Fauntelle Shrock. The Jacobson family had mostly moved to the American West Coast by the early 1930s after having originally immigrated to Northfield, Minnesota, from Norway. By the mid-1940s Jacobson, his parents and his sister, Carmen, had made their way to what they referred to as ''the promised land'', Southern California. In addition to his studies in physics and engineering while at Manual Arts High School and Los Angeles City College, Jacobson spent much of his time bodybuilding, street racing and working at an automotive garage. Having had a strong fascination with airplane seats and flying while growing up, Jacobson joined the Marine Corps Reserve (Air Corps) in an effort to work closely with the jets at Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portland, Oregon
Portland (, ) is a port city in the Pacific Northwest and the largest city in the U.S. state of Oregon. Situated at the confluence of the Willamette and Columbia rivers, Portland is the county seat of Multnomah County, the most populous county in Oregon. Portland had a population of 652,503, making it the 26th-most populated city in the United States, the sixth-most populous on the West Coast, and the second-most populous in the Pacific Northwest, after Seattle. Approximately 2.5 million people live in the Portland metropolitan statistical area (MSA), making it the 25th most populous in the United States. About half of Oregon's population resides within the Portland metropolitan area. Named after Portland, Maine, the Oregon settlement began to be populated in the 1840s, near the end of the Oregon Trail. Its water access provided convenient transportation of goods, and the timber industry was a major force in the city's early economy. At the turn of the 20th century, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Alamitos Army Airfield
LOS, or Los, or LoS may refer to: Science and technology * Length of stay, the duration of a single episode of hospitalisation * Level of service (transportation), Level of service, a measure used by traffic engineers * Level of significance, a measure of statistical significance * Line-of-sight (other) * LineageOS, a free and open-source operating system for smartphones and tablet computers * Loss of signal ** Fading **End of pass (spaceflight) * Loss of significance, undesirable effect in calculations using floating-point arithmetic Medicine and biology * Lipooligosaccharide, a bacterial lipopolysaccharide with a low-molecular-weight * Lower esophageal sphincter, Lower oesophageal sphincter Arts and entertainment * ''The Land of Stories'', a series of children's novels by Chris Colfer * Los, or the Crimson King, a character in Stephen King's novels * Los (band), a British indie rock band from 2008 to 2011 * Los (Blake), a character in William Blake's poetry * Los ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow-mobile
A snowmobile, also known as a Ski-Doo, snowmachine, sled, motor sled, motor sledge, skimobile, or snow scooter, is a motorized vehicle designed for winter travel and recreation on snow. It is designed to be operated on snow and ice and does not require a road or trail, but most are driven on open terrain or trails. Snowmobiling is a sport that many people have taken on as a serious hobby. Older snowmobiles could generally accommodate two people; however, most snowmobiles manufactured since the 1990s have been designed to only accommodate one person. Snowmobiles built with the ability to accommodate two people are referred to as "2-up" snowmobiles or "touring" models and make up an extremely small share of the market. Most snowmobiles do not have any enclosures, except for a windshield, and their engines normally drive a continuous track at the rear. Skis at the front provide directional control. Early snowmobiles used simple rubber tracks, but modern snowmobiles' tracks are usua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pump-jet
A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. The mechanical arrangement may be a ducted propeller (axial-flow pump), a centrifugal pump, or a mixed flow pump which is a combination of both centrifugal and axial designs. The design also incorporates an intake to provide water to the pump and a nozzle to direct the flow of water out of the pump.http://www.hamiltonmarine.co.nz/includes/files_cms/file/JetTorque%2008.pdf Design A pump-jet works by having an intake (usually at the bottom of the hull) that allows water to pass underneath the vessel into the engines. Water enters the pump through this inlet. The pump can be of a centrifugal design for high speeds, or an axial flow pump for low to medium speeds. The water pressure inside the inlet is increased by the pump and forced backwards through a nozzle. With the use of a ''reversing bucket'', reverse thrust can also be achieved for faring backwards, quickly and withou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-stroke Engine
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of the crankshaft. A four-stroke engine requires four strokes of the piston to complete a power cycle during two crankshaft revolutions. In a two-stroke engine, the end of the combustion stroke and the beginning of the compression stroke happen simultaneously, with the intake and exhaust (or scavenging) functions occurring at the same time. Two-stroke engines often have a high power-to-weight ratio, power being available in a narrow range of rotational speeds called the power band. Two-stroke engines have fewer moving parts than four-stroke engines. History The first commercial two-stroke engine involving cylinder compression is attributed to Scottish engineer Dugald Clerk, who patented his design in 1881. However, unlike most later two-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Bend Company
The West Bend Company was a West Bend, Wisconsin, company from 1911 to 2001. The West Bend Company manufactured aluminum cookware and electrical appliances, but also made two-stroke cycle engines, including outboard boat motors. Art Ingels used a surplus West Bend engine to power the first kart. Clayton Jacobson II used a West Bend 2-stroke motor to power the first stand-up Jet Ski. The engine division of West Bend was sold to Chrysler, then to Brunswick, and finally to US Motor Power. In 2001, Regal Ware, Inc. of Kewaskum, Wisconsin, acquired certain assets of the West Bend Company. In 2003, Regal Ware sold the Small Kitchen Appliance Division of the West Bend Company to Focus Products Group LLC. The Small Kitchen Appliance Division is now known as West Bend Housewares West Bend Housewares, LLC, based in West Bend, Wisconsin, produces household appliances such as breadmakers, mixers, coffee urns, slow cookers and woks. The West Bend Company, founded in 1911, was owned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cj2 Wiki6
CJ or similar may refer to: Businesses *BA CityFlyer (IATA airline designator) *China Northern Airlines (IATA airline designator) *CJ Group (also known as Cheil Jedang), a South Korean conglomerate *CJ CheilJedang, South Korean food and beverage company within the CJ Group In law *Chief Justice, an honorific title for the presiding member of a Supreme Court *Criminal justice People ''For people named C.J., see C. J. (given name)'' Publications *''The Classical Journal'' (Journal of the Classical Association of the Middle West and South) *''The Courier-Journal'', a newspaper in Louisville, Kentucky, United States In science and technology *Cangjie input method, a system by which Chinese characters may be entered into a computer using a standard keyboard *Centijoule, an SI unit of energy equal to 10−2 J *Jeep CJ (Civilian Jeep) series, a military-based off-road vehicle *Cessna CitationJet, a line of business jets by Cessna Aircraft Company Other uses *Congregation of Jesus or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Ski
Water skiing (also waterskiing or water-skiing) is a Surface water sports, surface water sport in which an individual is pulled behind a boat or a Cable skiing, cable ski installation over a body of water, skimming the surface on two skis or one ski. The sport requires sufficient area on a stretch of water, one or two skis, a tow boat with tow rope, two or three people (depending on local boating laws), and a personal flotation device. In addition, the skier must have adequate upper and lower body strength, muscular endurance, and good balance. There are water ski participants around the world, in Asia and Australia (continent), Australia, Europe, Africa, and Americas, the Americas. In the United States alone, there are approximately 11 million water skiers and over 900 sanctioned water ski competitions every year. Australia boasts 1.3 million water skiers. There are many options for recreational or competitive water skiers. These include speed skiing, trick skiing, show skii ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mojave Desert
The Mojave Desert ( ; mov, Hayikwiir Mat'aar; es, Desierto de Mojave) is a desert in the rain shadow of the Sierra Nevada mountains in the Southwestern United States. It is named for the indigenous Mojave people. It is located primarily in southeastern California and southwestern Nevada, with small portions extending into Arizona and Utah. The Mojave Desert, together with the Sonoran, Chihuahuan, and Great Basin deserts, forms a larger North American Desert. Of these, the Mojave is the smallest and driest. The Mojave Desert displays typical basin and range topography, generally having a pattern of a series of parallel mountain ranges and valleys. It is also the site of Death Valley, which is the lowest elevation in North America. The Mojave Desert is often colloquially called the "high desert", as most of it lies between . It supports a diversity of flora and fauna. The desert supports a number of human activities, including recreation, ranching, and military training. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cj2 Wiki3
CJ or similar may refer to: Businesses * BA CityFlyer (IATA airline designator) *China Northern Airlines (IATA airline designator) *CJ Group (also known as Cheil Jedang), a South Korean conglomerate *CJ CheilJedang, South Korean food and beverage company within the CJ Group In law * Chief Justice, an honorific title for the presiding member of a Supreme Court *Criminal justice People ''For people named C.J., see C. J. (given name)'' Publications *''The Classical Journal'' (Journal of the Classical Association of the Middle West and South) *''The Courier-Journal'', a newspaper in Louisville, Kentucky, United States In science and technology *Cangjie input method, a system by which Chinese characters may be entered into a computer using a standard keyboard *Centijoule, an SI unit of energy equal to 10−2 J *Jeep CJ (Civilian Jeep) series, a military-based off-road vehicle *Cessna CitationJet, a line of business jets by Cessna Aircraft Company Other uses *Congregation of Jesus o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motocross
Motocross is a form of off-road motorcycle racing held on enclosed off-road circuits. The sport evolved from motorcycle trials competitions held in the United Kingdom. History Motocross first evolved in Britain from motorcycle trials competitions, such as the Auto-Cycle Clubs's first quarterly trial in 1909 and the Scottish Six Days Trial that began in 1912. When organisers dispensed with delicate balancing and strict scoring of trials in favour of a race to become the fastest rider to the finish, the activity became known as "hare scrambles", said to have originated in the phrase, "a rare old scramble" describing one such early race. Though known as scrambles racing (or just scrambles) in the United Kingdom, the sport grew in popularity and the competitions became known internationally as "motocross racing", by combining the French word for motorcycle, ''motocyclette'', or ''moto'' for short, into a portmanteau with "cross country". The first known scramble race took place ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palos Verdes, California
The Palos Verdes Peninsula (''Palos Verdes'', Spanish for "Green Sticks") is a landform and a geographic sub-region of the Los Angeles metropolitan area, within southwestern Los Angeles County in the U.S. state of California. Located in the South Bay region, the peninsula contains a group of cities in the Palos Verdes Hills, including Palos Verdes Estates, Rancho Palos Verdes, Rolling Hills and Rolling Hills Estates, as well as the unincorporated community of Westfield/Academy Hill. The South Bay city of Torrance borders the peninsula on the north, the Pacific Ocean is on the west and south, and the Port of Los Angeles is east. As of the 2010 Census, the population of the Palos Verdes Peninsula is 65,008. The hill cities on the peninsula are known for dramatic ocean and city views, distinguished schools, extensive horse trails, and high value homes. History Native Americans The peninsula was the homeland of the Tongva-Gabrieliño Native Americans people for thousands of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
