The 1920s was the period of very interesting and creative ideas. The Golden Age is characterized by the discoveries in the medicine, technology, mechanical engineering.
It was the time of the appearance of the perfume Chanel No. 5, bubble gum, Yo-Yo, Band-Aid, toaster, hairdryer, electric shaver and even a lies detector. But what were the other innovations? Let out authors start by considering the facts.
In 1922 Frederick Banting and Charles Herbert purified insulin and applied it to the treat of their first patients. It was the first application of insulin in the treatment of patients with diabetes. The experiments took place at the University of Toronto. After this the production of insulin and its use in the treatment of diabetes began its development rapidly.
In 1928, Scottish bacteriologist Alexander Fleming made an ordinary experiment. It was the research devoted to the study how the human body can fight with bacterial infections. He concluded that the fungus produces a substance that kills bacteria. Later, he identified a molecule, known as "penicillin". It was the top contemporaneous antibiotic.
In 1922 in Berlin was presented the world's first public demonstration of sound film, recorded on the tape and played back using opto-electronic equipment. It was the first commercial film, adaptation of the play "the Arsonist" by Herman Heijermans.
In 1927 in New York in a cinema on Times Square the premiere of the first voiced film "Jazz Singer" took place. It was used audio playback system "Vitafon": the sound was recorded on a synchronized drive. This day is considered the day of birth of the sound cinema.
The mechanical scan television system was constructed by John Baird. It is considered that Charles Jenkins was the first gadgeteer, who in 1923 transmitted moving silhouette image. In 1926 Scottish inventor John Baird presented first monochrome TV set. In 1928 he demonstrated not only the first transmission of full-color images, but also the first stereoscopic transmission.
Robert Goddard constructed the first liquid fuel rocket, which was started up in the sky in 1926 in Massachusetts. A rocket had the size of a human hand and it took off to a height of about 12 meters and flew 56 meters.
The world's first motorway of considerable length was opened in 1924 in the North of Italy. Its length was 85 km and it joined Milan and Varese.
In 1927 Norwegian engineer Erik Rotheim offered the first aerosol container suitable for use in the design.
The first daylight lamp was composed by Edmund Germer, when in 1926 he received white light from the discharge lamp. He is currently recognized as the creator of fluorescent lights.
The 1920s are characterized by the most unusual inventions. Most of them did not come into everyday use. Among these devices are: "Radio baby carriage" (USA, 1921), "Laryngophone" -the telephone, transmitting the vibrations of the vocal cords (1929), "Folding bridge" for emergencies, transported on a trolley (Netherlands, 1926), "The car with a basket for pedestrians" (1924), "Bathing suit made of wood" (USA, 1925), "Lifejacket made of bicycle tires" (Germany, 1925).