The need for the mother of invention" and the needs of people in ancient times are very different from our present time and this is due to the advantage of every time, but this does not mean that the old people invented everything that is useful .. There are inventions to say that they are very strange.
And express the simplicity of their needs and creativity in a period, and shows that a person loves to develop always and looking for his comfort with every "invention"! One of those useful inventions is also the reason for the opening of development
Explanation under the picture
929 AD: The first telephone using the frequency of the vocal cords such as what is clear picture of the microphone in the throat
Life jackets created from bicycle tubes. (Germany 1925
Safety net to prevent or reduce injuries in 1924
Introduction to the hair dryer
The glasses let you read while you were lying down in 1936
A baby carriage protected from the gas attack in 1938
Mask of ice cubes to treat the effects of alcohol in 1947
1965 AD: Flight attempt
1932 AD: Amphibious bicycle can carry a weight of 120 k. France
1931 AD: The first bulletproof glass and the New York police test it. New York
1926 AD: The folding bridge is called the Tuareg Bridge, the Netherlands
1938 AD: Paper Fax, the first broadcast of American newspapers wirelessly, USA
1932 AD: First GPS device with speed through screen. USA This is a screen format
1931 AD: The first radio device is a hat-shaped radio, United States of America
A cone for protection against snow and sandstorms in 1939
1931 AD: First motorcycle. Italia