The inventions in the twentieth century: The first half of the twentieth century was characterized by the use of these energy sources in the previous century, with further development of industrial electricity and search Domain of atomic energy.
During this period, major technological innovations were: manufacturing, the invention increasing household appliances, the development of new building materials like reinforced concrete and glass, synthetic fibers for textile production, and plastic fittings; in medicine, the discovery of substances against infections, as penicillin and other antibiotics, the improvement of knowledge in agriculture, food and food preservation techniques, in the transportation series production car, which became in the predominant means of locomotion, the invention airplane, in the media of film development and television created from the invention of the kinescope in the twenties. For their part, international wars have spurred the development of new weapons of war, like poison gas and long-range missiles, but also led the development of aeronautical navigation and gave new impetus to the intercontinental transportation.
Source:
http://www.portalplanetasedna.com.ar/desarrollo_cientifico.htm
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