Technology 1920-1930
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Technology 1920-1930 1921 robot, fax 1922 insulin, 3-D movie 1923 frozen foods 1924 loud speaker, spiral notebooks 1925 mechanical television 1926 liquid fueled rockets 1927 electronic television, Technicolor 1928 penicillin, woman's’ vote equal to mans’ vote Sources: http://inventors.about.com/od/timelines/a/twentieth.htm Saettler, P. (2004). The Evolution of American Educational Technology . Greenwich, CT: Information Age Publishing 1
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Technology 1920-1930. 1921 robot, fax 1922 insulin, 3-D movie 1923 frozen foods 1924 loud speaker, spiral notebooks 1925 mechanical television 1926 liquid fueled rockets 1927 electronic television, Technicolor 1928 penicillin, woman's’ vote equal to mans’ vote Sources: - PowerPoint PPT Presentation
Transcript of Technology 1920-1930
Technology 1920-1930
1921 robot, fax
1922 insulin, 3-D movie
1923 frozen foods
1924 loud speaker, spiral notebooks
1925 mechanical television
1926 liquid fueled rockets
1927 electronic television, Technicolor
1928 penicillin, woman's’ vote equal to mans’ vote
Sources:http://inventors.about.com/od/timelines/a/twentieth.htm
Saettler, P. (2004). The Evolution of American Educational Technology. Greenwich, CT: Information Age Publishing
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