AMBULANCE |
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An ambulance is a vehicle designated for the transport of sick or injured people. The first ambulances called by that name were horse ambulances used in the American Civil War. The first practical ambulances were created by Dominique Jean Larrey, a French surgeon (17661842), for use in the Napoleonic Wars. Modern-day ambulances are typically large automobiles on a van or light truck chassis.
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CONVEYORS |
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A conveyor belt or belt conveyor consists of two end pulleys, with a continuous loop of material that rotates about them. The pulleys are powered, moving the belt and the material on the belt forward. Conveyor belts are extensively used to transport industrial and agricultural materials, such as grain, coal, ores, etc. Conveyor belts with regularly spaced partitions are often called elevator belts. Conveyor belts are used in self-unloading bulk freighters and in live bottom trucks. This technology is also used in conveyor transport such as moving sidewalks or escalators, as well as on many manufacturing assembly lines. Stores often have conveyor belts at the check-out counter to move shopping items. Ski areas also use conveyor belts to transport skiers up the hill.
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COOLING TOWERS |
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Cooling towers are structures for cooling water or other working medium to near-ambient temperature. The primary use of large, industrial cooling towers is to lower the temperature of the cooling water used in power plants, petroleum refineries, petrochemical plants, natural gas processing plants and other industrial facilities. It is desirable to cool the water rather than simply discharging it because the cooling water is typically demineralized and it is cheaper to cool it rather than getting more demineralized water. Furthermore, discharging large amounts of hot water may raise the temperature of the receiving river or lake to an unacceptable level for the local ecosystem. A cooling tower serves to dissipate the heat into the atmosphere instead and wind and air diffusion spreads the heat over a much larger area than hot water can distribute heat in a body of water.
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HYDROLOGY |
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Hydrology (from Greek: Yδρoλoγια, Yδωρ+Λoγos, Hydrologia, the "study of water") is the study of the movement, distribution, and quality of water throughout the Earth, and thus addresses both the hydrologic cycle and water resources. A practitioner of hydrology is a hydrologist, working within the fields of either earth or environmental science, or civil and environmental engineering.
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MANUFACTURED BUILDINGS / HOMES |
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Manufactured housing (known in some countries, including the United Kingdom, as prefab housing) is a type of housing unit that is largely assembled in factories and then transported to sites of use.
Prefabricated homes, often referred to as prefab homes, are dwellings manufactured off-site in advance, usually in standard sections that can be easily shipped and assembled. Many of the current prefab home designs on the market have jovial, eclectic elements of postmodernism or the clean, simple lines of futurism. Prefab homes have not been particularly marketable; possible reasons for this include:
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MOTORCYCLE HELMETS |
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A motorcycle helmet is a type of protective headgear used by motorcycle riders. The primary goal of a motorcycle helmet is to protect the rider's head during impact, although many helmets provide additional conveniences, such as face shields, ear protection, intercom etc.
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