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- {{Short description|German physician, scientist and inventor}} | nationality = German ...5 KB (702 words) - 23:13, 13 December 2024
- In the 19th and 20th centuries, [[Russia]] produced many notable [[List of Russian scie At the start of the 18th century the [[Reforms of Peter I of Russia|reforms of Peter the Great]] (founder of ...35 KB (4,793 words) - 01:13, 7 November 2024
- ...ray; Or, Photography of the Invisible and Its Value in Surgery'' (English; German: ''Röntgenstrahlen'', or: ''Die Photographie des Unsichtbaren und ihr Wert The '''history of radiation protection''' begins at the turn of the 19th and 20th centuries with the realization that [[ionizing radiation]] from na ...263 KB (37,147 words) - 20:45, 27 January 2025