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2 items
Periodic table in style of helix and space lemniscate
- 1914 (Original design)
- Circa 1957 (Date attributed to slide)
Perspective and plan views of a graphic representation of the periodic table of chemical elements as a helix and space lemniscate, with the helix drawn for the short periods and the space lemniscate drawn for the medium…
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2 items
Series table with symmetrically divided short periods
- 1914 (Original design)
- Circa 1957 (Date attributed to slide)
Graphic representation of the periodic table of chemical elements organized as a series table with symmetrically divided short periods. This table was originated by chemists Arthur A. Blanchard and Frank B. Wade in 1914…