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1 gen 1819 anni - Lente

Descrizione:

La Lente de Fresnel, llamada así por su inventor Augustin Fresnel, es un diseño de lentes que permite la construcción de lentes de gran apertura y una corta distancia focal sin el peso y volumen de material que debería usar en una lente de diseño convencional.

Aggiunto al nastro di tempo:

Unas de las grandes invenciones del siglo XIX

ByEva
12 gen 2020
0
0
232

Data:

1 gen 1819 anni
Adesso
~ 206 years ago
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