was the modern concept of air conditioning an accident or a deliberate invention?
473977
deliberate. AC uses same principle as the refridgerator, so after the fridges caught on, it was only a matter of time till somebody found a new use for technology.
892237
Sounds like an "urban legend" to me. Given that the normal usage requires that the product become airborne and therefore inhalable, I would highly doubt that there would be chemicals in such concentrations to be lethal.
811306
Briton B. M. Wright invented a new. pneumatic nebulizer \n\n1958
20347
He invented a cycle, which is externally and internally reversible, and gives the highest efficiency that any thermal machine will give between a given range of temperatures.\n\nThis cycle, however, can not be taken to practical applications, for all the four processes in the cycle involve irreversibilities that cannot be eliminated in reality.
527033
In 1902, the first modern, electrical air conditioning was invented by Willis Haviland Carrier (1876–1950).
627752
Refrigerators from the late 1800s until 1929 used the toxic gases, ammonia (NH3), methyl chloride (CH3Cl), and sulfur dioxide (SO2), as refrigerants. Several fatal accidents occurred in the 1920s because of methyl chloride leakage from refrigerators. People started leaving their refrigerators in their backyards. A collaborative effort began between three American corporations, Frigidaire, General Motors and DuPont to search for a less dangerous method of refrigeration.\n\nTo some extent, CFC's have been replaced by the less damaging hydro-chloro-fluoro-carbons (HCFCs), although concerns remain regarding HCFCs also. In some applications, hydro-fluoro-carbons (HFCs) have been used to replace CFCs. HFC's, which contain no chlorine or bromine, do not contribute at all to ozone depletion although they are potent greenhouse gases. The best known of these compounds is probably HFC-134a (R-134a), which in the United States has largely replaced CFC-12 (R-12) in automobile air conditioners.\n\nIn 1928, Thomas Midgley, Jr. aided by Charles Franklin Kettering invented a "miracle compound" called Freon. Freon represents several different chlorofluorocarbons, or CFCs, which are used in commerce and industry. The CFCs are a group of aliphatic organic compounds containing the elements carbon and fluorine, and, in many cases, other halogens (especially chlorine) and hydrogen. Freons are colorless, odorless, nonflammable, noncorrosive gases or liquids.\n\nBecause Freon is non-toxic, it eliminated the danger posed by refrigerator leaks. In just a few years, compressor refrigerators using Freon would become the standard for almost all home kitchens. In 1930, Thomas Midgley held a demonstration of the physical properties of Freon for the American Chemical Society by inhaling a lung-full of the new wonder gas and breathing it out onto a candle flame, which was extinguished, thus showing the gas's non-toxicity and non-flammable properties. Only decades later did people realize that such chlorofluorocarbons endangered the ozone layer of the entire planet.\n\nSide Note: CFCs, or Freon, are now infamous for greatly adding to the depletion of the earth's ozone shield. Leaded gasoline is also a major pollutant, and Thomas Midgley secretly suffered from lead poisoning because of his invention, a fact he kept hidden from the public.
160973
No Definitely not. Man could never tame or alter the path of the plates. However I do believe he may have alredy implemented change on the Convection currents. Global warming was probably helped by man during the Industrial revolution and has gone on ever since. Dont just blame America. I have seen some appalling instances of Major pollution in India and several other third world countries. It is a global thing and all countries of the world are guilty of some form of pollution.
867921
Some inventions happen almost instantly, others require years of research. Believe it or not, the transistor and radar were stumbled upon while investigaing something totally unrelated.
535458
good question...the term air conditioning refers to conditioning of air..irrespective of outside temp..i.e. when u want to cool ur room in hot climate and heat ur room in cold climate...\nrefer the site: www.marineengineering.org.uk     and go to main page and select utilities and the refrigeration and air conditioning systems both diagram and formulaes...
461512
You don't really give enough information. How was the house nearly fatal? Was it the person's fault it was nearly fatal, or was it simply a freak accident? Would a reasonable person expect the person's actions to harm you?
756699
Noone invented it. It is a natural phenomenon which humans have harnessed, channeled and learned to store.
536097
We all learn from our mistakes honey, even scientists. Your a scientist aren't you? You check the temperature of the shower water before you step in!! Experience has told you that you should check or you'll get hurt. Or do you belong to the branch of scientists - who dont experiment.\nGet over it!!!
964186
A woman invented it for all the times you have left the seat up and we get wet from falling in, in the middle of the night.\n\nEye for an eye, buddy.
201844
Hopefully this will help some.  The first artificial refrigeration device was introduced at the University of Glascow in 1748, but it seems refrigerators and freezers didn't become common until the late-1800's to the early 1900's.  So although it's not probable that someone in the desert of Arizona was able to store and even make ice in 1910, it's definitely possible.
813276
Realistically? The search for knowledge has led to, or had a significant contribution to, the development of microwaves, radar, radio, superconductivity, computers, refridgeration, digital cameras, the internet and much more. When the theories that underpin most of these inventions were first discovered and tested, many people asked the same question - how does this help me? And then 20 years later some clever engineer invents a little box that heats up food. So give it time - almost every invention know to man once started as someone saying "I wonder how this works?"
553986
When I was about 10 years old I tried to heat up a metal rod on the coils of a 2kW electric radiator. I vaguely remember that a moment passed and then wham! I was thrown back so hard I toppled the settee behind me.\n\nSurprisingly I suffered no other ill-effects, not even a burnt thumb and forefinger.\n\nElectricity is dangerous stuff.\n\nIt was an interesting experience, not to be repeated.
816259
You are asking about the field of hydraulics. Knowledge and study of this goes back at least to ancient Greece. (It was Archimedes who, according to legend, solved the puzzle of the dishonest goldsmith when he submerged himself in his bath after puzzling over the problem for days, noted the water overflowing the tub, and ran naked through the streets shouting "I've got it!" Only he shouted it in Greek, so it came out "Eureka!" (As far as running naked through the streets goes, the Greeks took a more liberal view of such behavior than our present society. If you were to try that, you'd probably be chastised firmly.) \nBut I digress. Realizing that liquids are essentially incompressible, he was able to determine that the goldsmith was in fact a crook/Republican. From this humble start, modern hydraulic studies began.