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Trey Mcintyre

Air conditioning - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...Air_conditioning

Air Conditioning history

shared by Trey Mcintyre on 14 Jan 14 - Cached
  • Air conditioning (often referred to as aircon, AC or A/C) is the process of altering the properties of air (primarily temperature and humidity) to more favourable conditions. More generally, air conditioning can refer to any form of technological cooling, heating, ventilation, or disinfection that modifies the condition of air.[1]
  • An air conditioner is a major or home appliance, system, or mechanism designed to change the air temperature and humidity within an area (used for cooling and sometimes heating depending on the air properties at a given time). The cooling is typically done using a simple refrigeration cycle, but sometimes evaporation is used, commonly for comfort cooling in buildings and motor vehicles. In construction, a complete system of heating, ventilation and air conditioning is referred to as "HVAC".
  • Air conditioning can also be provided by a simple process called free cooling which uses pumps to circulate a coolant
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  • ng. Common storage media are deep aquifers or a natural underground rock mass accessed via a cluster of small-diameter, heat exchanger equipped boreholes.
  • he heat pump is added-in because the temperature of the storage gradually increase during the cooling season, thereby declining in effectiveness. Free cooling and hybrid systems are mature
  • The basic concept behind air conditioning is said to have been applied in ancient Egypt, where reeds were hung in windows and were moistened with trickling water. The evaporation of water cooled the air blowing through the window, though this process also made the air more humid (also beneficial in a dry desert climate). In Ancient Rome, water from aqueducts was circulated through the walls of certain houses to cool them. Other techniques in medieval Persia involved the use of cisterns and wind towers to cool buildings during the hot season. Modern air conditioning emerged from advances in chemistry during the 19th century, and the first large-scale electrical air conditioning was invented and used in 1902 by Willis Haviland Carrier. The introduction of residential air conditioning in the 1920s helped enable the great migration to the Sun Belt in the US.
Katlyn Humphries

Procter & Gamble Company -- Britannica School - 0 views

school.eb.com/...61477

shared by Katlyn Humphries on 16 Jan 14 - No Cached
  • The chief ingredient for both products was animal fat, which was readily available in the hog-butchering centre of Cincinnati
  • supplied soap and candles to the Union Army during the American Civil War and sold even more of these products to the public when the war was over.
  • Joy, the first liquid synthetic detergent (1949).
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  • the company extended it product lines to include toothpaste, coffee, tea, an
  • d baking mixes. By the early 21st century Procter & Gamble marketed products in several major areas: health and wellness (prescription medications, digestive aids, mouthwashes, toothbrushes, and toothpastes); house and home (cleaning products, detergents, paper towels, coffee, and snack foods); personal and beauty (fragrances, deodorants, cosmetics, shaving supplies, and hair colour); baby and family (diapers and tissue, cleansing products, and moisturizers); and pet care, including pet foods
  • Katlyn Humphries on 16 Jan 14
     
    britannica's insight on procter and gamble
Nathanael Nix

MARTIN COOPER - 0 views

www.martincooper.uk.com/...biog.html

cell phone history inventor martin cooper MartinCooper cellphone-facts

shared by Nathanael Nix on 14 Jan 14 - No Cached
  • Martin Cooper was born in Liverpool in 1958 and studied art at the Laird School of Art in Birkenhead.
  • Between 1980 and 1989 Martin was a member of the highly successful pop group Orchestral Manoeuvres in the Dark.
  • Martin has exhibited extensively, both in the UK and overseas, and his pictures hang in many private collections. In recent years he has exhibited at the Williamson Art Gallery (Birkenhead), the Royal Academy of Arts (London), the David Messum Fine Art Gallery (London), W H Patterson (London), Woodhay Picture Gallery (Newbury), Llewellyn Alexander (London), the Brian Sinfield Gallery (Compton Cassey Galleries), Sarah Samuals Fine Art (Chester), Heritage House (Bermuda) and the Fel Gallery (Singapore).
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  • In 1998 Martin was awarded the sponsors prize in the Discerning Eye exhibition which was held at The Mall Gallery in London.
  • Martin lives in Greasby, Merseyside with his wife, Alexandra Bibby, a classical pianist, and their two sons.
  • Nathanael Nix on 14 Jan 14
     
    This is a very good informational website about one of Martin Cooper's previous jobs.
Trey Mcintyre

HowStuffWorks "How Air Conditioners Work" - 0 views

home.howstuffworks.com/ac.htm

howstuffworks air conditioners

shared by Trey Mcintyre on 15 Jan 14 - Cached
  • he first modern air conditioning system was developed in 1902 by a young electrical engineer named Willis Haviland Carrier. It was designed to solve a humidity problem at the Sackett-Wilhelms Lithographing and Publishing Company in Brooklyn, N.Y. Paper stock at the plant would sometimes absorb moisture from the warm summer air, making it difficult to apply the layered inking techniques of the time. Carrier treated the air inside the building by blowing it across chilled pipes. The air cooled as it passed across the cold pipes, and since cool air can't carry as much moisture as warm air, the process reduced the humidity in the plant and stabilized the moisture content of the paper. Reducing the humidity also had the side benefit of lowering the air temperature -- and a new technology was born.
  • simple scientific principle. The rest is achieved with the application of a few clever mechanical techniques. Actually, an air conditioner is very similar to another appliance in your home -- the refrigerator. Air conditioners don't have the exterior housing a refrigerator relies on to insulate its cold box. Instead, the walls in your home keep cold air in and hot air out.Let's move on to the next page where we'll discover what happens to all that hot air when you use
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