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In physics, a topological quantum number (also called topological charge) is any quantity, in a physical theory, that takes on only one of a discrete set...

A nonsingular black hole model is a mathematical theory of black holes that avoids certain theoretical problems with the standard black hole model, including...

Kauko Armas Nieminen (15 February 1929 – 2010) was a Finnish self-taught physicist. Nieminen was born in Kuopio, Finland. Although he was most known for...