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Head Standard
The Head Standard was Howard Head's first successful ski design, and arguably the first modern downhill ski. The Standard used composite construction, with a plywood core sandwiched between aluminum outer skins, steel edges tapering into the core, and a hard plastic base, sidewalls and topsheet. The only major changes in ski materials since the Standard are the use of fibreglass structural layers in place (or in addition to) of the aluminum layers, and substitution of expanded plastic foam for the wooden core. The Standard was flexible in length and stiff in torsion, which allowed it to be easily turned while still holding a good edge. This combination was so impressive that it became known as "The Cheater" for the way it allowed beginners to turn like pros. The Standard, and models that followed it, were so successful that half the downhill skis in the US in the 1960s were Heads. History Early attempts A number of metal skis were introduced over the years, among them the 1942 All ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head Standard Skis
A head is the part of an organism which usually includes the ears, brain, forehead, cheeks, chin, eyes, nose, and mouth, each of which aid in various sensory functions such as visual perception, sight, hearing, olfaction, smell, and taste. Some very simple animals may not have a head, but many bilateria, bilaterally symmetric forms do, regardless of size. Heads develop in animals by an evolutionary trend known as cephalization. In bilaterally symmetrical animals, nervous tissue concentrate at the anterior region, forming structures responsible for information processing. Through biological evolution, sense organs and feeding structures also concentrate into the anterior region; these collectively form the head. Human head The human head is an anatomical unit that consists of the Human skull, skull, hyoid bone and cervical vertebrae. The term "skull" collectively denotes the mandible (lower jaw bone) and the cranium (upper portion of the skull that houses the brain). Sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenol Formaldehyde Resin
Phenol formaldehyde resins (PF) or phenolic resins (also infrequently called phenoplasts) are synthetic polymers obtained by the reaction of phenol or substituted phenol with formaldehyde. Used as the basis for Bakelite, PFs were the first commercial synthetic resins (plastics). They have been widely used for the production of molded products including billiard balls, laboratory countertops, and as coatings and adhesives. They were at one time the primary material used for the production of circuit boards but have been largely replaced with epoxy resins and fiberglass cloth, as with fire-resistant FR-4 circuit board materials. There are two main production methods. One reacts phenol and formaldehyde directly to produce a thermosetting network polymer, while the other restricts the formaldehyde to produce a prepolymer known as novolac which can be moulded and then cured with the addition of more formaldehyde and heat.A. Gardziella, L.A. Pilato, A. Knop, Phenolic Resins: Chemistry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Machine And Foundry
American Machine and Foundry (known after 1970 as AMF, Inc.) was one of the United States' largest recreational equipment companies, with diversified products as disparate as garden equipment, atomic reactors, and yachts. The company was founded in 1900 by Rufus L. Patterson, inventor of the first automated cigarette manufacturing machine. Originally incorporated in New Jersey but operating in Brooklyn, the company began by manufacturing cigarette, baking, and stitching machines."Diversified Success", ''Time'', May 19, 1961 AMF moved into the bowling business after World War II, when AMF automated bowling equipment and bowling centers became profitable business ventures. Bicycle production was added in 1950. The company was once a major manufacturer of products from tennis racquets to research reactors for the US "Atoms for Peace" program. AMF became a major part of what would soon be referred to by US President Dwight D. Eisenhower as "the military-industrial complex" after Wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tennis Racquet
A racket, or racquet, is a sports implement used for striking a ball or shuttlecock in games such as squash, tennis, racquetball, badminton and padel. In the strictest sense a racket consists of a handled frame with an open hoop across which a network of strings is stretched tightly. Some rackets may have a solid or perforated hitting surface instead of a network of strings. Such rackets may be called a paddle or bat. Collectively, these games are known as racket sports. Racket design, materials and manufacturing has changed considerably over the centuries. The frame of rackets for all sports was traditionally made of solid wood (later laminated wood) and the strings of animal intestine known as catgut. The traditional racket size was limited by the strength and weight of the wooden frame which had to be strong enough to hold the strings and stiff enough to hit the ball or shuttle. Manufacturers started adding non-wood laminates to wood rackets to improve stiffness. Non-wood rack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic VR-17
Dynamics (from Greek δυναμικός ''dynamikos'' "powerful", from δύναμις ''dynamis'' "power") or dynamic may refer to: Physics and engineering * Dynamics (mechanics) ** Aerodynamics, the study of the motion of air ** Analytical dynamics, the motion of bodies as induced by external forces ** Brownian dynamics, the occurrence of Langevin dynamics in the motion of particles in solution ** File dynamics, stochastic motion of particles in a channel ** Flight dynamics, the science of aircraft and spacecraft design ** Fluid dynamics or ''hydrodynamics'', the study of fluid flow *** Computational fluid dynamics, a way of studying fluid dynamics using numerical methods ** Fractional dynamics, dynamics with integrations and differentiations of fractional orders ** Molecular dynamics, the study of motion on the molecular level ** Langevin dynamics, a mathematical model for stochastic dynamics ** Orbital dynamics, the study of the motion of rockets and spacecraft ** Quantum chrom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Claude Killy
Jean-Claude Killy (born 30 August 1943) is a French former World Cup alpine ski racer. He dominated the sport in the late 1960s, and was a triple Olympic champion, winning the three alpine events at the 1968 Winter Olympics, becoming the most successful athlete there. He also won the first two World Cup titles, in 1967 and 1968. Early life Killy was born in Saint-Cloud, a suburb of Paris, during the German occupation of World War II, but was brought up in Val-d'Isère in the Alps, where his family had relocated in 1945 following the war. His father, Robert, was a former Spitfire pilot for the Free French, and opened a ski shop in the Savoie village, and would later operate a hotel. In 1950, his mother Madeline abandoned the family for another man, leaving Robert to raise Jean-Claude, age 7, his older sister (France), and their infant brother (Mic). Jean-Claude was sent to boarding school in Chambéry, down the valley, but he despised being shut up in a classroom. Early career ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neoprene
Neoprene (also polychloroprene) is a family of synthetic rubbers that are produced by polymerization of chloroprene.Werner Obrecht, Jean-Pierre Lambert, Michael Happ, Christiane Oppenheimer-Stix, John Dunn and Ralf Krüger "Rubber, 4. Emulsion Rubbers" in Ullmann's Encyclopedia of Industrial Chemistry, 2012, Wiley-VCH, Weinheim. Neoprene exhibits good chemical stability and maintains flexibility over a wide temperature range. Neoprene is sold either as solid rubber or in latex form and is used in a wide variety of commercial applications, such as laptop sleeves, orthopaedic braces (wrist, knee, etc.), electrical insulation, liquid and sheet-applied elastomeric membranes or flashings, and automotive fan belts. Production Neoprene is produced by free-radical polymerization of chloroprene. In commercial production, this polymer is prepared by free radical emulsion polymerization. Polymerization is initiated using potassium persulfate. Bifunctional nucleophiles, metal oxides (e.g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Station Wagon
A station wagon ( US, also wagon) or estate car ( UK, also estate), is an automotive body-style variant of a sedan/saloon with its roof extended rearward over a shared passenger/cargo volume with access at the back via a third or fifth door (the liftgate or tailgate), instead of a trunk/boot lid. The body style transforms a standard three-box design into a two-box design — to include an A, B, and C-pillar, as well as a D-pillar. Station wagons can flexibly reconfigure their interior volume via fold-down rear seats to prioritize either passenger or cargo volume. The ''American Heritage Dictionary'' defines a station wagon as "an automobile with one or more rows of folding or removable seats behind the driver and no luggage compartment but an area behind the seats into which suitcases, parcels, etc., can be loaded through a tailgate." When a model range includes multiple body styles, such as sedan, hatchback, and station wagon, the models typically share their platform, d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Washington (New Hampshire)
Mount Washington is the highest peak in the Northeastern United States at and the most topographically prominent mountain east of the Mississippi River. The mountain is notorious for its erratic weather. On the afternoon of April 12, 1934, the Mount Washington Observatory recorded a windspeed of at the summit, the world record from 1934 until 1996. Mount Washington still holds the record for highest measured wind speed not associated with a tornado or tropical cyclone. The mountain is located in the Presidential Range of the White Mountains, in Coös County, New Hampshire. The mountain is in several unincorporated townships, with the summit in the township of Sargent's Purchase. While nearly the whole mountain is in the White Mountain National Forest, an area of surrounding and including the summit is occupied by Mount Washington State Park. The Mount Washington Cog Railway ascends the western slope of the mountain, and the Mount Washington Auto Road climbs to the summ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outhouse
An outhouse is a small structure, separate from a main building, which covers a toilet. This is typically either a pit latrine or a bucket toilet, but other forms of dry toilet, dry (non-flushing) toilets may be encountered. The term may also be used to denote the toilet itself, not just the structure. Outhouses were in use in cities of Developed country, developed countries (e.g. Australia) well into the second half of the twentieth century. They are still common in rural areas and also in cities of developing countries. Outhouses that are covering pit latrines in densely populated areas can cause groundwater pollution. Increasingly, "outhouse" is used for a structure outside the main living property that is more permanent in build quality than a shed. In some localities and varieties of English, particularly outside North America, the term "outhouse" refers ''not'' to a toilet, but to outbuildings in a general sense: sheds, barns, workshops, etc. Design aspects Common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Howard Head
Howard Head (July 31, 1914 in Philadelphia, Pennsylvania – March 3, 1991) was an American aeronautical engineer who is credited with the invention of the first commercially successful aluminum laminate skis and the oversized tennis racket. Head founded the ski (and later tennis racquet) making firm Head in 1950. Later he became chairman of Prince Manufacturing Inc. The U.S. patents for the laminate skis and oversized tennis racket are in the name of Howard Head. Ski equipment In 1947, Howard Head was an aircraft engineer for Glenn L. Martin Company in Baltimore, and went skiing for the first time. Head was frustrated with the quality of the clumsy and heavy wooden skis, which made skiing very difficult for beginners. He decided to develop a lighter and more efficient ski that could make skiing much easier for everyone. He left his job and devoted all his time and energy to developing the skis and supported himself with earnings from poker. The skis developed by Head were based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10th Mountain Division
The 10th Mountain Division (Light Infantry) is a light infantry division in the United States Army based at Fort Drum, New York. Formerly designated as a mountain warfare unit, the division was the only one of its size in the US military to receive specialized training for fighting in mountainous conditions. More recently, the 10th Mountain has been conducting operations in Iraq and Syria advising and assisting Iraqi Security Forces and People's Defense Units. Originally activated as the 10th Light Division (Alpine) in 1943, the division was redesignated the 10th Mountain Division in 1944 and fought in the mountains of Italy in some of the roughest terrain in World War II. On 5 May 1945 the division reached Nauders, Austria, just beyond the Reschen Pass, where it made contact with German forces being pushed south by the U.S. Seventh Army. A status quo was maintained until the enemy headquarters involved had completed their surrender to the Seventh. On 6 May, 10th Mountain tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
