Instruct: Given a question, retrieve relevant documents that answer the question.
Query: Who invented air conditioning?
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 US inventor Willis Carrier. The introduction of residential air conditioning in the 1920s helped enable the great migration to the Sun Belt in the United States.
Heat and humidity in Houston make air conditioning important in day-to-day life. Most indoor workers spend the hottest part of the day in air conditioning. After World War II, air conditioning stimulated the growth of Houston, called the most air-conditioned city in the world in 1950. For construction workers, landscapers, and others who must work outdoors, there is little relief from the summer heat and humidity. Industrial workers, automobile mechanics and others who usually work in non-air conditioned indoor spaces often rely on large electric fans to provide some relief.
After the War, Northrup went to work for Storm Vulcan, a Dallas company, where he invented a machine to clean aircraft engines. He also embarked on a venture to fit cars with air conditioning equipment, putting the machinery in the trunk and piping the cooled air through tubes in the headliner. This caught the interest of engineers from General Motors, who copied the system in Cadillacs in the late 1940s. "After market" automotive AC units were manufactured in Texas until the 1980s. He also sold some of the first air conditioning units, built by the Curtis Mathes Corporation, an early leader in manufacturing window units. Northrup married Jane Keliher and started a family in Dallas, where he designed and built one of the first single-family houses in the United States with central air conditioning. He founded a company to install air conditioning in residential and commercial buildings. With a Marketing Plan from G F Sweetman (CEO of American Awards Co), he became one of largest suppliers of Curtis Mathes fans and compressors in the nation. He also developed a company to manage, install, update, and clean air filtration systems.
1902 Air conditioning
The 2nd-century Chinese mechanical engineer and inventor Ding Huan of the Han Dynasty invented a rotary fan for air conditioning, with seven wheels 3m (10ft) in diameter and manually powered by prisoners of the time.[6] In 747, Emperor Xuanzong (r. 712–762) of the Tang Dynasty (618–907) had the Cool Hall (Liang Dian 涼殿) built in the imperial palace, which the Tang Yulin describes as having water-powered fan wheels for air conditioning as well as rising jet streams of water from fountains. During the subsequent Song Dynasty (960–1279), written sources mentioned the air conditioning rotary fan as even more widely used.[7]
In 1902, the first modern electrical air conditioning unit was invented by Willis Carrier in Buffalo, New York. After graduating from Cornell University, Carrier found a job at the Buffalo Forge Company. There, he began experimenting with air conditioning as a way to solve an application problem for the Sackett-Wilhelms Lithographing and Publishing Company in Brooklyn, New York. The first air conditioner, designed and built in Buffalo by Carrier, began working on 17 July 1902.
The 1953 Chrysler Imperial was the first production car in twelve years to actually have automotive air conditioning, following tentative experiments by Packard in 1940 and Cadillac in 1941. Walter P. Chrysler had seen to the invention of Airtemp air conditioning back in the 1930s for the Chrysler Building, and had ostensibly offered it on cars in 1941-42, and again in 1951-52, but none are known to have been sold in the latter form until the 1953 model year. In actually installing optional Airtemp air conditioning units to its Imperials in 1953, Chrysler beat Cadillac, Buick and Oldsmobile which added air conditioning as an option in the 1953 model year.
Whole house fans were the only method for cooling homes in the early 1900s. Air conditioning was invented by Carrier in 1907 but did not become popular until the 1950s. Whole house fans are still ideal for cooling homes when the air outside is cooler than the air inside.
Although the plain automatic air brake was a great improvement over the straight air brake, in an emergency the system still applied the brakes to the last cars in a train later than to the first cars in a train. To remedy that condition, George Westinghouse invented the quick action triple valve in 1887. It automatically vents air from the brake pipe locally on each car, which applies the brakes more quickly.
Early descriptions of probable emphysema include: in 1679 by T. Bonet of a condition of "voluminous lungs" and in 1769 by Giovanni Morgagni of lungs which were "turgid particularly from air". In 1721 the first drawings of emphysema were made by Ruysh. These were followed with pictures by Matthew Baillie in 1789 and descriptions of the destructive nature of the condition. In 1814 Charles Badham used "catarrh" to describe the cough and excess mucus in chronic bronchitis. René Laennec, the physician who invented the stethoscope, used the term "emphysema" in his book "A Treatise on the Diseases of the Chest and of Mediate Auscultation" (1837) to describe lungs that did not collapse when he opened the chest during an autopsy. He noted that they did not collapse as usual because they were full of air and the airways were filled with mucus. In 1842, John Hutchinson invented the spirometer, which allowed the measurement of vital capacity of the lungs. However, his spirometer could measure only volume, not airflow. Tiffeneau and Pinelli in 1947 described the principles of measuring airflow.
Drebbel invented a chicken incubator and a mercury thermostat which automatically kept it stable at a constant temperature; one of the first recorded feedback-controlled devices. He also developed and demonstrated a working air conditioning system. The invention of a working thermometer is also credited to Drebbel.
The first practical semi-portable air conditioning unit was invented by engineers at Chrysler Motors and offered for sale starting in 1935.[37]
Gradually, a science policy arose that ideas be as free as the air (air being a free good, not just a public good). Steven Johnson, in "The invention of air" (a 2008 book on Enlightenment Europe and America, especially on Joseph Priestley) quotes Jefferson: "That ideas should spread freely from one to another over the globe, for the moral and mutual instruction of man, and improvement of his condition, ... like the air ... incapable of confinement or exclusive appropriation." 
A hypocaust (Latin "hypocaustum") is a system of central heating in a building that produces and circulates hot air below the floor of a room, and may also warm the walls with a series of pipes through which the hot air passes. This air can warm the upper floors as well. The word derives from the Ancient Greek "hypo" meaning "under" and "caust-", meaning "burnt" (as in "caustic"). The earliest reference to such a system suggests that the temple of Ephesus in 350 BC was heated in this manner, although Vitruvius attributes its invention to Sergius Orata in c.80 BC. Its invention improved the hygiene and living conditions of citizens, and was a forerunner of modern central heating.
Air conditioning is the cooling and de-humidification of indoor air for thermal comfort. Using a system of coils as a solution to cool and remove moisture from muggy air in a printing plant that was wrinkling magazine pages, Willis Carrier invented and manufactured the world's first mechanical air conditioning unit in 1902. Carrier's invention – encompassing the first system to provide man-made control over temperature, humidity, ventilation and air quality, was first installed as a solution to the quality problems experienced at a Brooklyn printing plant, Sackett-Wilhelms Lithographing and Publishing Company. Air conditioning not only spawned a company and an industry, but also brought about profound economic, social and cultural changes.
Challenges include the type of paint used to paint outdoors, animals, bugs, onlookers, and environmental conditions such as weather. Acrylic paint may harden and dry quickly in warm, sunny weather and it cannot be reused. On the opposite side of the spectrum is the challenge of painting in moist or damp conditions with precipitation. The advent of plein air painting predated the invention of acrylics. The traditional and well-established method of painting "en plein air" incorporates the use of oil paint.
He was hired by the Chicago Vitreous Enamel Product Company to transform the factory for defense production. Strandlund invented manufacturing techniques to build non-warping metal plates for tanks during World War II, created air conditioning systems for movie theaters, and invented a wallpaper-removing machine. The company rewarded him with a promotion to vice president and general manager in September 1943.
The main intention of the tour was to transform Madonna's old hits musically and display her capacity for transformation and self-reflection. The tour was initially known as the Whore of Babylon World Tour, although Madonna later denied using this name. The idea was to portray Madonna as the Whore of Babylon, an evil figure from the Book of Revelation. However it was later changed to the Re-Invention World Tour, a self-confident dig at all the critics and people who have expressed their views about Madonna re-inventing her image over the years. The official tour poster displayed Madonna in a vintage bolero gown and a large French Renaissance-like hair-bun. Air-conditioning was turned off during the tour on Madonna's request as she claimed it dried up her throat during singing.
The 1953 Chrysler Imperial was one of the first production cars in twelve years to offer modern automobile air conditioning as an option, following tentative experiments by Packard in 1940 and Cadillac in 1941. Walter Chrysler had seen to the invention of Airtemp air conditioning in the 1930s for the Chrysler Building, and had offered it on cars in 1941-42, and again in 1951-52.
Crosthwait’s expertise was on air ventilation, central air conditioning, and heat transfer systems. With this knowledge he created many different heating systems, refrigeration methods, temperature regulating devices, and vacuum pumps. For these inventions he holds 39 United States patents, as well as 80 international patents. In the 1920s and 1930s Crosthwait invented a vacuum pump, a boiler, and a thermostat control, all for more effective heating systems for larger buildings. Some of his greatest accomplishments were for creating the heating systems for the Rockefeller Center and New York’s Radio City Music Hall.
Designed to improve manufacturing process control in a printing plant, Carrier's invention controlled not only temperature but also humidity. Carrier used his knowledge of the heating of objects with steam and reversed the process. Instead of sending air through hot coils, he sent it through cold coils (filled with cold water). The air was cooled, and thereby the amount of moisture in the air could be controlled, which in turn made the humidity in the room controllable. The controlled temperature and humidity helped maintain consistent paper dimensions and ink alignment. Later, Carrier's technology was applied to increase productivity in the workplace, and The Carrier Air Conditioning Company of America was formed to meet rising demand. Over time, air conditioning came to be used to improve comfort in homes and automobiles as well. Residential sales expanded dramatically in the 1950s.
From 1836 to 2011, the United States Patent and Trademark Office (USPTO) has granted a total of 7,861,317 patents relating to several well-known inventions appearing throughout the timeline below. Some examples of patented inventions between the years 1890 and 1945 include John Froelich's tractor (1892), Ransom Eli Olds' assembly line (1901), Willis Carrier's air-conditioning (1902), the Wright Brothers' airplane (1903), and Robert H. Goddard's liquid-fuel rocket (1926).
Airtemp invented capacity regulators, sealed radial compressors, and the self-contained air conditioning system, along with a superior high-speed radial compressor, and by 1941 had over 500 dealers selling its air conditioning and heating systems. The company supplied medical refrigeration units in World War II, and dominated the industry in the 1940s but slowly fell behind. By the 1970s Airtemp was losing money and was sold to Fedders in 1976. In 2012 the name was reborn as a Nordyne byproduct exclusively sold by the R.E. Michel Company.
1974 – Formed by two Leeds based entrepreneurs Alan Duttine and Peter Midgley who recognised the opportunity for air conditioning for specialist computer and healthcare environments at the dawn of a new technological era. Alan and Peter who both worked for Calverley based Thermatank barely knew each other, but met by chance, at Leeds Bradford International Airport when their flights were delayed. The two got talking and decided to set up Airedale Air Conditioning in June 1974. Airedale Air Conditioning manufactures its first precision air conditioning unit and condenser unit, the VA5 and CU5.
The inventor Ding Huan (fl. 180 AD) of the Han dynasty invented a rotary fan for air conditioning, with seven wheels 3 m (10 ft) in diameter and manually powered. In 747, Emperor Xuanzong had a "Cool Hall" built in the imperial palace, which the "Tang Yulin" (唐語林) describes as having water-powered fan wheels for air conditioning as well as rising jet streams of water from fountains. During the subsequent Song dynasty, written sources mentioned the air conditioning rotary fan as even more widely used.