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Genre Slides Remove constraint Genre: Slides Date 1930 to 1939 Remove constraint Date: <span class='from'>1930</span> to <span class='to'>1939</span>

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    • 1935 (Original design)
    • circa 1957 (Date attributed to slide)

    Graphic representation of the periodic table of chemical elements as an Archimedes spiral with a single revolution. This table was originated by Nicolas Opolonick in 1935 and classified by chemist Edward G. Mazurs as…

    • circa 1957 (Date attributed to slide)
    • 1938 (Original design)

    Graphic representation of the periodic table of chemical elements in the style of parallel lines, with the single lines representing subshells and the groups of parallel lines representing different shells. This table…

    • circa 1957 (Date attributed to slide)
    • 1931 (Original design)

    Graphic representation of the periodic table of chemical elements in the style of a right-side zigzag. This table was originated by C.H. Douglas Clark in 1931 and classified by chemist Edward G. Mazurs as Type IIIC4-2…

    • 1937 – 1945 (Original design)
    • circa 1957 (Date attributed to slide)

    Graphic representation of the periodic table of chemical elements constructed as a triangle. This type of table was originated by Henry A. Wagner and Harold Simmons Booth in 1945 after an incomplete drawing by Emil V.…

    • circa 1957 (Date attributed to slide)
    • 1935 (Original design)

    Graphic representation of the periodic table of chemical elements as an Archimedes spiral with a single revolution. This table was originated by Nicolas Opolonick in 1935 and classified by chemist Edward G. Mazurs as…

    • circa 1957 (Date attributed to slide)
    • 1936 (Original design)

    Graphic representation of the periodic table of chemical elements designed as a series table consisting of two parts that are arranged like mirror-images of one another. This table was originated by German chemist Egon…

    • 1932 (Original design)
    • circa 1957 (Date attributed to slide)

    Graphic representation of the periodic table of chemical elements designed as a series table with eight groups and three subgroups in which the rare earth elements are placed in two series. This table was originated by…

    • circa 1930

    Two close-up views of a demonstration of the cold-drawing technique used to produce the 3-16 polyester super-silk fiber, the forerunner of nylon. This technique was discovered by DuPont chemist Julian Hill (1904-1996)…