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Physics In History
@PhysInHistory
Photos from the history of physics | © with mentioned Archives. Shared for educational purposes. Einstein portrait © Ullsteinbild. Subscribe for curated papers.
参加 July 2020
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Mole Day is celebrated on October 23 from 6:02 a.m. to 6:02 p.m., honors Avogadro's constant (6.02×10²³), the number of particles in a mole, a key chemistry concept.