Definición de Lobachevsky, Nikolai Ivanovich en inglés:

Lobachevsky, Nikolai Ivanovich

Saltos de línea: Ni¦ko|lai Ivan|ovich Lo¦ba|chev¦sky
Pronunciación: /ˌlɒbəˈtʃɛfski
 
/
( 1792–1856), Russian mathematician. At about the same time as Gauss and János Bolyai ( 1802–60), he independently discovered non-Euclidean geometry. His work was not widely recognized until the non-Euclidean nature of space-time was revealed by the general theory of relativity.

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Palabra del día glee
Pronunciación: gliː
noun
great delight, especially from one's own good fortune…