Blowdryer Totally Explained

Everything about Blowdryer totally explained

A blowdryer, also frequently called a hairdryer, is an electromechanical device designed to blow cool or hot air over wet or damp hair, in order to accelerate the evaporation of water particles and dry the hair. Blowdryers allow to better control the shape and style of hair, by accelerating and controlling the formation of temporary hydrogen bonds inside each strand. These hydrogen bonds are very powerful (allowing for stronger hair shaping than even the sulfur bonds formed by permanent waving products), but are temporary and extremely vulnerable to humidity. They disappear with a single washing of the hair. Hairstyles using blowdryers usually have volume and discipline, which can be further improved by the use of styling products and hairbrushes during drying to add tension, hold and lift.
Blowdryers were invented around the end of the 19th century. The first model was created by Alexandre F. Godefoy in his salon in France. The handheld, household hair-dryer first appeared in 1920.

Function

Most models use coils of wire that have a high electric resistivity and heats rapidly with an electric current. A fan usually blows ambient air past the hot coils resulting in heated air effective for drying. The heating element in most hairdryers is a bare, coiled nichrome wire that's wrapped around insulating mica heating boards. Nichrome wire is used in heating elements, because of two important properties: it's a poor conductor of electricity and it doesn't oxidize when heated.
   A survey of stores in 2007 showed that many hair dryers have ceramic heating elements (like ceramic heaters) - because of their "instant heat" capability.
   Many of these hair dryers have "cool shot" buttons which turn off the heater and just blow room temperature air while the button is pressed.
   Many also feature "ionic" operation, to reduce the amount of static electricity build-up in the hair. Manufacturers also claim this makes the hair "smoother".

Cultural References

The coach of English football club Manchester United, Sir Alex Ferguson, notorious particularly in his earlier years for having a volatile temper, has sometimes been described as giving, or having given, "the hair dryer treatment" (usually during the half-time intermission) to a player (or group of players) Ferguson believes is underperforming or not performing in the manner that Ferguson desires. This is an obvious semi-comedic reference to the concept of Ferguson's oratory being so forceful and/or fiery that the hair of the listener or recipient is blown back, as if by a hair dryer or blowdryer.

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