Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
You can change this under Settings & Account at any time.
Transcript of Hair Dryer
It was the first hood dryer ever made, and it was run by power cord. Before the invention of the handheld blow dryer, women had to get creative when it came to drying their hair at home. One of the first ways used as a hair dryer was the vacuum cleaner. Women would often connect the vacuum hose to the back end of the vacuum, turn it on and use the air from the vacuum to dry their hair. It wasn't until 1920's that the first hand-held hairdryer was put on the market. The first hand-held version was big, heavy weighing about 2 lbs, made out of zinc or steel and frequently overheated. It has the capability of producing only 100 watts of heat, the first hand-held hair dryer was not able to dry hair very quickly and women's arms often got tired from holding the heavy dryer. By the mid 1950's, new dryer models were invented, allowing the blow dryer to be less noisy. These blow dryers had elegant designs and were brightly colored, much more feminine. The hair dryers kept advancing by the 90's it could produce over 1500 watts of heat. Improvements in plastic technology and the discovery of new materials made a new generation of lightweight hairdryers. Today's blow dryers can produce up 2000 watts and can dry hair faster than ever before. Todays hair dryers are designed to weigh less than one pound, as well as look sleek and stylish.
The hair dryer will improve by the years pass. The progression of the hair dryer is to make the lives of the user better by making the hair dryer faster and to produce more heat. Also the weight of it makes a great progression because you can use it for a long period of time so you can safe time of other things. All hair dryers has a small fan that the blades spin to generate the air flow and a small motor is needed to make the fan work. The out side of the hair dryer is made of plastic. it has a heat shields that provide the outside of the hair dryer to not over heat and burn the user. What is the purpose of this technology? The purpose of hair dryer is to dry your hair in a fast way and with a tool that is not hard to use. Hair dryer technology had improved dramatically by the 1960's. Hair dryers of this time were made from plastic, making them lighter and easier to hold for extended periods of time. They were also now capable of producing up to 500 watts of heat due to technological advancements How has it made the lives of humans better over time? The hair dryer has impact the user livies because you can blow dry your hair in a small period of time and not getting tired because of the weight. Also the way the hair dryer are now small, you can take them with you if you need to. Whats your definition of technology? I define technology as a easy way to do or use things. It help us a lot in a every day basses because with out technology we couldn't do a lot of things. Bio http://www.inventhelp.com/Newsletter/2011_04/invention-of-hair-dryer.aspx