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July is a Jubilee of Events
This sign in a store window in Dublin gave me a good laugh! At 18, we're all geniuses. By 30, we realize we're idiots! Photo LD Lewis July is a Jamboree of Events! Happy July. Like every month, I pick...
June 2024 Gems
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About Periodic Table Day
Education
Ends: Feb 07, 2024
DESCRIPTION:
Periodic Table Day marks the anniversary of publishing the first table of elements by English chemist John Newlands on February 7, 1863. His is distinctive because he was the first to categorize elements based on atomic mass. Newlands' however, was different from what we're familiar with today. Russian Dmitri Mendeleev created the format in 1869. He is the man who organized the tables in columns and rows based on their atomic weight and the occasions of repetition of base elements.
Like most science, the periodic table is an international affair. To reach the point of Newlands and Mendeleev, contributions from the French (1789, 1857, 1862) and Germans (1829, 1843) would add to the final product of an Englishman and a Russian. David T Steineker first observed periodic Table Day.
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