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Carlo Perrier

Italian mineralogist (1886-1948) · Italy · On the map · Scientists · Died at 61

Carlo Perrier was an Italian mineralogist and chemist who did extensive research on the element technetium. With the discovery of technetium in 1937, he and Emilio Segrè accounted for the last gap in the periodic table. Technetium was the first element produced artificially.

Carlo Perrier is read about 7 times a day, in 10 languages.

A typical day, 30 days to 24 September 2026

The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.

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