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Jetboil
Jetboil manufactures and markets lightweight fuel gas, gas-fueled portable stoves used primarily for backpacking (wilderness), backpacking. The company was formed in 2001 by Dwight Aspinwall and Perry Dowst in a former woolen mill in Guild, New Hampshire, debuting its products at the 2003 Outdoor Retailers trade show. In 2006 the company moved its headquarters to Manchester, New Hampshire and in 2012 was purchased by Racine, Wisconsin-based Johnson Outdoors. Stove design Stoves feature a neoprene-insulated pot (billycan), corrugated metal heat exchanger (burner) and burner adjustment valve — with ignition via either an outside source or integral push-button electric igniter, depending on the model. The ring of corrugated metal forming the burner also shields it from wind and directs heat to the base of the pot. The ring and burner, along with a coiled heat exchanger at the bottom of the stove all work to contain heat, enabling an average boiling time of two minutes and fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johnson Outdoors
Johnson Outdoors Inc. () produces outdoor recreational products such as watercraft, diving equipment, camping gear, and outdoor clothing. It has operations in 24 locations worldwide, employs 1,400 people and reports sales of more than $315 million. Helen Johnson-Leipold, one of Samuel Curtis Johnson, Jr.'s four children, has run the company since 1999. Company history The company, previously known as Johnson Wax Associates, grew out of diversification and acquisition efforts by S. C. Johnson & Son during the 1970s. It became a profitable, self-sustaining outdoor equipment business known as Johnson Camping, Inc., later renamed Johnson Worldwide Associates (JWA). Silva Compass (discontinued) From 1980, JWA imported Swedish-made compasses manufactured by Silva Production AB (Silva Group) for sale in North America. In 1996, a decision by Silva Production AB of the Silva Group parent to begin marketing its Swedish-made ''Silva'' brand compasses via a new distribution network in Nor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portable Stove
A portable stove is a cooking stove specially designed to be portable and lightweight, used in camping, picnicking, backpacking, or other use in remote locations where an easily transportable means of cooking or heating is needed. Portable stoves can be used in diverse situations, such as for outdoor food service and catering and in field hospitals. Since the invention of the portable stove in the 19th century, a wide variety of designs and models have seen use in a number of different applications. Portable stoves can be broken down into several broad categories based on the type of fuel used and stove design: unpressurized stoves that use solid or liquid fuel placed in the burner before ignition; stoves that use a volatile liquid fuel in a pressurized burner; bottled gas stoves; and gravity-fed "spirit" stoves. History Early example The shichirin, a lightweight charcoal stove, has been used in Japan in much the same form since at least the Edo period (1603-1868). Old shichiri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manchester, New Hampshire
Manchester is a city in Hillsborough County, New Hampshire, United States. It is the most populous city in New Hampshire. At the 2020 census, the city had a population of 115,644. Manchester is, along with Nashua, one of two seats of New Hampshire's most populous county, Hillsborough County. Manchester lies near the northern end of the Northeast megalopolis and straddles the banks of the Merrimack River. It was first named by the merchant and inventor Samuel Blodgett, namesake of Samuel Blodget Park and Blodget Street in the city's North End. His vision was to create a great industrial center similar to that of the original Manchester in England, which was the world's first industrialized city. History The native Pennacook people called Amoskeag Falls on the Merrimack River—the area that became the heart of Manchester—''Namaoskeag'', meaning "good fishing place". In 1722, John Goffe, John Goffe III settled beside Cohas Brook, later building a dam and sawmill at what was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanium
Titanium is a chemical element with the symbol Ti and atomic number 22. Found in nature only as an oxide, it can be reduced to produce a lustrous transition metal with a silver color, low density, and high strength, resistant to corrosion in sea water, aqua regia, and chlorine. Titanium was discovered in Cornwall, Great Britain, by William Gregor in 1791 and was named by Martin Heinrich Klaproth after the Titans of Greek mythology. The element occurs within a number of minerals, principally rutile and ilmenite, which are widely distributed in the Earth's crust and lithosphere; it is found in almost all living things, as well as bodies of water, rocks, and soils. The metal is extracted from its principal mineral ores by the Kroll and Hunter processes. The most common compound, titanium dioxide, is a popular photocatalyst and is used in the manufacture of white pigments. Other compounds include titanium tetrachloride (TiCl4), a component of smoke screens and catalysts; and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Spokesman-Review
''The Spokesman-Review'' is a daily broadsheet newspaper based in Spokane, Washington, the city's sole remaining daily publication. It has the third-highest readership among daily newspapers in the state, with most of its readership base in eastern Washington and northern Idaho. History ''The Spokesman-Review'' was formed from the merger of the ''Spokane Falls Review'' (1883–1894) and the ''Spokesman'' (1890–1893) in 1893 and first published under the present name on June 29, 1894. The ''Spokane Falls Review'' was a joint venture between local businessman, A.M. Cannon and Henry Pittock and Harvey W. Scott of ''The Oregonian''. The Spokesman-Review later absorbed its competing sister publication, the afternoon ''Spokane Daily Chronicle''. Long co-owned, the two combined their sports departments in late 1981 and news staffs in early 1983. The middle name "Daily" was dropped in January 1982, and its final edition was printed on Friday, July 31, 1992. The news ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tripod
A tripod is a portable three-legged frame or stand, used as a platform for supporting the weight and maintaining the stability of some other object. The three-legged (triangular stance) design provides good stability against gravitational loads as well as horizontal shear forces, and better leverage for resisting tipping over due to lateral forces can be achieved by spreading the legs away from the vertical centre. Variations with one, two, and four legs are termed ''monopod'', ''bipod'', and ''quadripod'' (similar to a table). Etymology First attested in English in the early 17th century, the word ''tripod'' comes via Latin ''tripodis'' (GEN of ''tripus''), which is the romanization of Greek (''tripous''), "three-footed" (GEN , ''tripodos''), ultimately from (''tri-''), "three times" (from , ''tria'', "three") + (''pous''), "foot". The earliest attested form of the word is the Mycenaean Greek , ''ti-ri-po'', written in Linear B syllabic script. Cultural use Many cultur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isobutane
Isobutane, also known as ''i''-butane, 2-methylpropane or methylpropane, is a chemical compound with molecular formula HC(CH3)3. It is an isomer of butane. Isobutane is a colourless, odourless gas. It is the simplest alkane with a tertiary carbon atom. Isobutane is used as a precursor molecule in the petrochemical industry, for example in the synthesis of isooctane. Production Isobutane is obtained by isomerization of butane. : Uses Isobutane is the principal feedstock in alkylation units of refineries. Using isobutane, gasoline-grade "blendstocks" are generated with high branching for good combustion characteristics. Typical products created with isobutane are 2,4-dimethylpentane and especially 2,2,4-trimethylpentane. Solvent In the Chevron Phillips slurry process for making high-density polyethylene, isobutane is used as a diluent. As the slurried polyethylene is removed, isobutane is "flashed" off, and condensed, and recycled back into the loop reactor for this purpose. Prec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propane
Propane () is a three-carbon alkane with the molecular formula . It is a gas at standard temperature and pressure, but compressible to a transportable liquid. A by-product of natural gas processing and petroleum refining, it is commonly used as a fuel in domestic and industrial applications and in low-emissions public transportation. Discovered in 1857 by the French chemist Marcellin Berthelot, it became commercially available in the US by 1911. Propane is one of a group of liquefied petroleum gases (LP gases). The others include butane, propylene, butadiene, butylene, isobutylene, and mixtures thereof. Propane has lower volumetric energy density, but higher gravimetric energy density and burns more cleanly than gasoline and coal. Propane gas has become a popular choice for barbecues and portable stoves because its low −42 °C boiling point makes it vaporise inside pressurised liquid containers (2 phases). Propane powers buses, forklifts, taxis, outboard boat motors, and ic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boulder, Colorado
Boulder is a home rule city that is the county seat and most populous municipality of Boulder County, Colorado, United States. The city population was 108,250 at the 2020 United States census, making it the 12th most populous city in Colorado. Boulder is the principal city of the Boulder, CO Metropolitan Statistical Area and an important part of the Front Range Urban Corridor. Boulder is located at the base of the foothills of the Rocky Mountains, at an elevation of above sea level. Boulder is northwest of the Colorado state capital of Denver. It is home of the main campus of the University of Colorado, the state's largest university. History On November 7, 1861, the Colorado General Assembly passed legislation to locate the University of Colorado in Boulder. On September 20, 1875, the first cornerstone was laid for the first building (Old Main) on the CU campus. The university officially opened on September 5, 1877. In 1907, Boulder adopted an anti- saloon ordinanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Backpacker (magazine)
''Backpacker'' is an American lifestyle magazine publication that features information on wilderness hiking and adventure. It has been published since 1973. ''Backpacker'' magazine is currently published by '' Outside'' and is based in Boulder, Colorado. Originally started in Bedford Hills, New York, the magazine moved to Emmaus, Pennsylvania in the late 1980s and then to Boulder in August 2007. History The first issue of ''Backpacker'' appeared in the spring of 1973. The first editor's note written by William Kemsley, the founding editor, explains that it took three years to put together the first issue of ''Backpacker,'' and that the founding editors worried that America in the early 1970s did not contain a backpacking community large enough to support a magazine. It also expresses Kemsley's goal to support the magazine primarily through subscriptions rather than advertising. The Winter/Spring 2007 issue of the journal ''Appalachia'' includes an essay by Kemsley titled "How th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Igniter
An electric match is a device that uses an externally applied electric current to ignite a combustible compound. Electric matches use a bridgewire consisting of a heating element to ignite a pyrogen, which is a quantity of readily ignited pyrotechnic initiator composition. Electric matches can be used in any application where source of heat is needed at a precisely controlled point in time, typically to ignite a propellant or explosive. Examples include airbags, pyrotechnics, and military or commercial explosives. Design Electric matches consist of two parts, a bridgewire and a Pyrogen (pyrotechnics), pyrogen. The bridgewire is a heating element, typically in the form of a loop or coil of thin wire, which is encased in the pyrogen, which is a quantity of readily ignited pyrotechnic initiator composition. If the pyrogen is sufficiently conductive, it can act as the bridgewire as well. Electric matches also come with provisions for attaching an electric current source, and they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heat Exchanger
A heat exchanger is a system used to transfer heat between a source and a working fluid. Heat exchangers are used in both cooling and heating processes. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. They are widely used in space heating, refrigeration, air conditioning, power stations, chemical plants, petrochemical plants, petroleum refineries, natural-gas processing, and sewage treatment. The classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air. Another example is the heat sink, which is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant. Flow arrangement Image:Heat_exc_1-1.svg, Fig. 1: Shell and tube heat exchanger, single pass (1–1 parallel f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
