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Zoom Inventors and Inventions |
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Anders Celsius (1701-1744) was a Swedish professor of astronomy who devised the Celsius thermometer. He also ventured to the far north of Sweden with an expedition in order to measure the length of a degree along a meridian, close to the pole, later comparing it with similar measurements made in the Southern Hemisphere. This confirmed that that the shape of the earth is an ellipsoid which is flattened at the poles. He also cataloged 300 stars. With his assistant Olof Hiorter, Celsius discovered the magnetic basis for auroras. |
The zipper was improved by the Swedish-American engineer, Gideon Sundbach, in 1913. Sundbach was also successful at selling his "Hookless 2." Sundbach sold these fasteners to the US Army, who put zippers on soldiers' clothing and gear during World War I. The word zipper was coined by B.F. Goodrich in 1923, whose company sold rubber galoshes equipped with zippers. Goodrich is said to have named them zippers because he liked the zipping sound they made when opened and closed. |
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| Guidelines on Writing a Report on an Invention |
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