A fan has had a long history, even longer than we expect it to be. It is a device which is used to create a flow within a fluid. The fluid under discussion is usually a gas such as air. These fans consist of a rotating arrangement comprised of vanes or blades. The blades act on the fluid or the gas and the rotating system or assembly of blades and the hub is collectively known as a rotor.
History of the Fan
The historical mention of any device which worked like a fan is from many regions. The “punkah” was a type of fan that was used in India since about 500 BCE. This device was a handheld fan which was made from bamboo strips. The device was used to swirl air in a definite direction and during the British rule, there used to be large flats fans which would be fixed to the ceilings and to make them work they would be pulled by a servant usually called a punkhawala.
The Han Dynasty’s craftsman and engineer Ding Huan came up with the idea. He invented a manually operated fan. The fan was 3m in diameters and had seven wheels.
The first rotary fan that was used in Europe was used in mine for ventilation during the 16th century.
Form their first appearance in the markets the fans have undergone extensive research to make more and better designs and even to increase the efficiency in terms of the air flow. The fans which when they were introduced in the market were considered a luxury and now they have reached the rooms of every home and in some they have even been phased out to make way for the better option of air conditioning. The fans have developed from being hand pulled to run by internal combustion engines to finally run by electricity and even by solar energy nowadays. Extensive research and money poured in to the development of the device has given results many a times and now we have many categories of fans.
A weird fan
In 1981 the Japanese multinational conglomerate Toshiba came up with the idea of a very different type of fans. Their idea had something which shocked everyone, aroused curiosity and even earned them a tag of crazy until the product was launched. The company came up with the idea of bladeless fans. A fan with no blades at all had people thinking that how would it work and what is the amazing principle or mechanism it uses to work on.
The fan was designed by an industrial designer James Dawson whodecided to call his design the air multiplier that is why the fan is still sometimes called the air multiplier. The fan was unveiled in the year 2009 by the very same person Sir James Dawson.
There have been controversies over the design presented by Sir James Dawson as this is very much similar to the one presented by Toshiba company many years back thus the original pioneer in this field is not yet decided.Click here to check out the best bladeless fans.