The fast pace of technology change in the 20′s brought us the lie detector, traffic signal, bubble gum and Penicillin. An all-electronic moving-image television system somewhat similar to that used today was invented and demonstrated in 1929. The 30′s were not less invention-intensive bringing us the jet engine, helicopter, tea bags, sticky tape, ballpoint pen and the first photocopier.
However, somewhere between these great world-changing inventions there were some fun and sometimes even hilarious inventions the world has forgotten.
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| All terrain car able to descend slopes up to 65 degrees (England, 1936) |
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| The Cyclomer, a bicycle on land and water can ride with a load of 120 pounds (Paris 1932) |
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| Hamblin glasses. A pair of spectacles especially designed for reading in bed (England 1936) |
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| Bulletproof glass, demonstration by the best rifle man of the New York police, 1931 |
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| Kind of shovel on a car. Purpose: reducing the number of casualties among pedestrians (Paris 1924) |
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