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Icebox
An icebox (also called a cold closet) is a compact non-mechanical refrigerator which was a common early-twentieth-century kitchen appliance before the development of safely powered refrigeration devices. Before the development of electric refrigerators, iceboxes were referred to by the public as "refrigerators". Only after the invention of the modern day electric refrigerator did early non-electric refrigerators become known as iceboxes. The terms ''ice box'' and ''refrigerator'' were used interchangeably in advertising as long ago as 1848. Origin The first recorded use of refrigeration technology dates back to 1775 BC in the Sumerian city of Terqa. It was there that the region's King, Zimri-lim, began the construction of an elaborate ice house fitted with a sophisticated drainage system and shallow pools to freeze water in the night. Using ice for cooling and preservation was nothing new at this point, but these ice houses paved the way for their smaller counterpart, the iceb ...
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Iceboxes
An icebox (also called a cold closet) is a compact non-mechanical refrigerator which was a common early-twentieth-century kitchen appliance before the development of safely powered refrigeration devices. Before the development of electric refrigerators, iceboxes were referred to by the public as "refrigerators". Only after the invention of the modern day electric refrigerator did early non-electric refrigerators become known as iceboxes. The terms ''ice box'' and ''refrigerator'' were used interchangeably in advertising as long ago as 1848. Origin The first recorded use of refrigeration technology dates back to 1775 BC in the Sumerian city of Terqa. It was there that the region's King, Zimri-lim, began the construction of an elaborate ice house fitted with a sophisticated drainage system and shallow pools to freeze water in the night. Using ice for cooling and preservation was nothing new at this point, but these ice houses paved the way for their smaller counterpart, the icebo ...
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Coolgardie Safe
The Coolgardie safe is a low-tech food storage unit, using evaporative cooling to prolong the life of whatever edibles are kept in it. It applies the basic principle of heat transfer which occurs during evaporation of water (see latent heat and heat of evaporation). It was named after the place where it was invented – the small mining town of Coolgardie, Western Australia, near Kalgoorlie-Boulder. History Coolgardie was the site of a gold rush in the early 1890s, before the Kalgoorlie-Boulder gold rush. For the prospectors who had rushed here to find their fortune, one challenge was to extend the life of their perishable foods – hence the invention of the Coolgardie safe. The safe was invented in the late 1890s by Arthur Patrick McCormick, who used the same principle as explorers and travelers in the Outback used to cool their canvas water bags: when the canvas bag is wet the fibers expand and it holds water. Some water seeps out and evaporates. It is most effective when ...
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Ice Box Used In Cafes Of Paris In Late 1800s
Ice is water frozen into a solid state, typically forming at or below temperatures of 0 degrees Celsius or Depending on the presence of impurities such as particles of soil or bubbles of air, it can appear transparent or a more or less opaque bluish-white color. In the Solar System, ice is abundant and occurs naturally from as close to the Sun as Mercury to as far away as the Oort cloud objects. Beyond the Solar System, it occurs as interstellar ice. It is abundant on Earth's surfaceparticularly in the polar regions and above the snow lineand, as a common form of precipitation and deposition, plays a key role in Earth's water cycle and climate. It falls as snowflakes and hail or occurs as frost, icicles or ice spikes and aggregates from snow as glaciers and ice sheets. Ice exhibits at least eighteen phases ( packing geometries), depending on temperature and pressure. When water is cooled rapidly (quenching), up to three types of amorphous ice can form depending on its his ...
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Girls Deliver Ice
A girl is a young female human, usually a child or an adolescent. When a girl becomes an adult, she is accurately described as a ''woman''. However, the term ''girl'' is also used for other meanings, including ''young woman'',Dictionary.com, "Girl"'' Retrieved January 2, 2008. and is sometimes used as a synonym for ''daughter'', or ''girlfriend''. In certain contexts, the usage of ''girl'' for a woman may be derogatory. ''Girl'' may also be a term of endearment used by an adult, usually a woman, to designate adult female friends. ''Girl'' also appears in portmanteaus (compound words) like ''showgirl'', ''cowgirl'', and '' schoolgirl''. The treatment and status of girls in any society is usually closely related to the status of women in that culture. In cultures where women have a low societal position, girls may be unwanted by their parents, and the state may invest less in services for girls. Girls' upbringing ranges from being relatively the same as that of boys to comp ...
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Cooling Technology
Cooling is removal of heat, usually resulting in a lower temperature and/or phase change. Temperature lowering achieved by any other means may also be called cooling.ASHRAE Terminology, https://www.ashrae.org/technical-resources/free-resources/ashrae-terminology The transfer of thermal energy may occur via thermal radiation, heat conduction or convection. Examples can be as simple as reducing temperature of a coffee. Devices *Coolant *Cooling towers, as used in large industrial plants and power stations * Daytime passive radiative cooler *Evaporative cooler *Heat exchanger *Heat pipe *Heat sink *HVAC (Heating, Ventilation and Air Conditioning) * Intercooler *Radiative cooling in Heat shields * Radiators in automobiles *Pumpable ice technology *Thermoelectric cooling *Vortex tube The vortex tube, also known as the Ranque-Hilsch vortex tube, is a mechanical device that separates a compressed gas into hot and cold streams. The gas emerging from the hot end can reach temperature ...
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Food Preservation
Food preservation includes processes that make food more resistant to microorganism growth and slow the oxidation of fats. This slows down the decomposition and rancidification process. Food preservation may also include processes that inhibit visual deterioration, such as the enzymatic browning reaction in apples after they are cut during food preparation. By preserving food, food waste can be reduced, which is an important way to decrease production costs and increase the efficiency of food systems, improve food security and nutrition and contribute towards environmental sustainability. For instance, it can reduce the environmental impact of food production. Many processes designed to preserve food involve more than one food preservation method. Preserving fruit by turning it into jam, for example, involves boiling (to reduce the fruit's moisture content and to kill bacteria, etc.), sugaring (to prevent their re-growth) and sealing within an airtight jar (to prevent reconta ...
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Home Appliances
A home appliance, also referred to as a domestic appliance, an electric appliance or a household appliance, is a machine which assists in household functions such as cooking, cleaning and food preservation. Appliances are divided into three types: small appliances, major appliances (also known as white goods) and consumer electronics (brown goods). Definition Given a broad usage, the domestic application attached to home appliance is tied to the definition of appliance as "an instrument or device designed for a particular use or function". More specifically, Collins English Dictionary defines "home appliance" as: "devices or machines, usually electrical, that are in your home and which you use to do jobs such as cleaning or cooking". The broad usage, afforded to the definition allows for nearly any device intended for domestic use to be a home appliance, including consumer electronics as well as stoves, refrigerators, toasters and air conditioners. History While many ap ...
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California Cooler (cabinet)
A California cooler, also known as a cooler cabinet, is a type of cabinet used for the cool storage of food items that was popular in the western United States, in the late 19th and early 20th century. Construction The California cooler is constructed simply as an interior cabinet with slatted or screened shelves. Vents near the top and bottom allow outside air to circulate by the principle of natural convection. This results in convective cooling, which keeps perishable food items fresh. The outside vents are separated from the outside by a screen, preventing the incursion of insects, and downward slanting slats shut out rain. Often on a wall away from sun, they tend to be located near where food is prepared, such as in the kitchen. Modifications to work in more variable climates, such as a trap door to selectively draw air from a cellar, are possible. Usage These coolers are most commonly found on the west coast of the United States because they function particularly well in ...
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Pot-in-pot Refrigerator
A pot-in-pot refrigerator, clay pot cooler or zeer ( ar, زير) is an evaporative cooling refrigeration device which does not use electricity. It uses a porous outer clay pot (lined with wet sand) containing an inner pot (which can be glazed to prevent penetration by the liquid) within which the food is placed. The evaporation of the outer liquid draws heat from the inner pot. The device can cool any substance, and requires only a flow of relatively dry air and a source of water. History Many clay pots from around 3000BC were discovered in the Indus Valley civilization and are considered to have been used for cooling as well as storing water. The pots are similar to the present-day ''ghara'' and ''matki'' used in India and Pakistan. There is evidence that evaporative cooling may have been used in North Africa as early as the Old Kingdom of Egypt, circa 2500BC. Frescoes show slaves fanning water jars, which would increase air flow around porous jars to aid evaporation and co ...
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Meat Safe
A pie safe, also called a pie chest, pie cupboard, kitchen safe, and meat safe, is a piece of furniture designed to store pies and other food items. This was a normal household item before iceboxes came into regular use, and it was an important part of the American household starting in the 1700s and continuing through the 1800s. The pie safe was used to store not only pies, but bread, meat, and other perishables as well, to protect them from insects and vermin. Origins The origin of the pie safe can be traced back to the early 1700s in America. It was likely introduced by German immigrants to the country, who typically settled in the Pennsylvania area. These people later become known as the ‘Pennsylvania Dutch.’ The pie safe was introduced to protect perishables and other ingredients from vermin and pests. Their popularity meant that most American homes during this period possessed a pie safe, or similar regional variation. Design A common pie safe is made of wood, is arou ...
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Cooler
A cooler, portable ice chest, ice box, cool box, chilly bin (in New Zealand), or esky (Australia) is an insulated box used to keep food or drink cool. Ice cubes are most commonly placed in it to help the contents inside stay cool. Ice packs are sometimes used, as they either contain the melting water inside, or have a gel sealed inside that stays cold longer than plain ice (absorbing heat as it changes phase). Coolers are often taken on picnics, and on vacation or holiday. Where summers are hot, they may also be used just for getting cold groceries home from the store, such as keeping ice cream from melting in a hot automobile. Even without adding ice, this can be helpful, particularly if the trip home will be lengthy. Some coolers have built-in cupholders in the lid. They are usually made with interior and exterior shells of plastic, with a hard foam in between. They come in sizes from small personal ones to large family ones with wheels. Disposable ones are made solely f ...
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Ammonia
Ammonia is an inorganic compound of nitrogen and hydrogen with the formula . A stable binary hydride, and the simplest pnictogen hydride, ammonia is a colourless gas with a distinct pungent smell. Biologically, it is a common nitrogenous waste, particularly among aquatic organisms, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to 45% of the world's food and fertilizers. Around 70% of ammonia is used to make fertilisers in various forms and composition, such as urea and Diammonium phosphate. Ammonia in pure form is also applied directly into the soil. Ammonia, either directly or indirectly, is also a building block for the synthesis of many pharmaceutical products and is used in many commercial cleaning products. It is mainly collected by downward displacement of both air and water. Although common in nature—both terrestrially and in the outer planets of the Solar System—and in wide use, ammonia is both caust ...
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