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{{Short description|Polish mathematical physicist (1947–2022)}} | nationality = Polish ...

*'''[[Andrey Bolotov]]''', major 18th-century [[agriculturist]], discovered [[dichogamy]], pioneered [[cross-pollination] *'''[[Sergei Chetverikov]]''', pioneer of [[modern synthesis (20th century)|modern evolutionary synthesis]] ...

...peared throughout history, including the work of [[Desargues]] in the 17th century, all the way back to the implicit use of [[spherical geometry]] to understa ...the theory of [[manifold]]s and [[Riemannian geometry]]. Later in the 19th century, it appeared that geometries without the [[parallel postulate]] ([[non-Eucl ...

...actions. The system became the standard of France and Europe within half a century. Other measures with unity ratios<ref group="Note">ratios of 1 between mag ...ts for length, mass and time. Advances in [[electromagnetism]] in the 19th century necessitated additional units to be defined, and multiple incompatible syst ...

The '''history of radiation protection''' begins at the turn of the 19th and 20th centuries with the realization that [[ionizing radiation]] from natural and ...relessly, increasing awareness of the dangers of [[radiation]] in the 20th century led to the implementation of various preventive measures worldwide, resulti ...

...of the House of Representatives to honor the life and achievements of 19th Century Italian-American inventor Antonio Meucci, and his work in the invention of ...Amati/Amaticello.html|title=Violoncello by Andrea Amati, Cremona, Mid-16th Century|website=collections.nmmusd.org|access-date=2019-11-05}}</ref> ...