lente acromática

lente acromática

Lens (or combination of lenses) that brings different wavelenghts within a ray of light to a single focus, thus overcoming chromatic aberration. It was first successfully made by Joseph von Fraunhofer.

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Secteur d’activité/Domaine : Astronomie
Catégorie : l'astronomie générale
Company: Caltech
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acromática

Arts et artisanat; Beaux-arts

Negro, blanco y los grises. Obra que se ejecuta sin color.

lente

Photographie; Photographie Professionnelle

elemento óptico hecho de vidrio o de plástico capaz de concentrar luz. Un lente puede ser construido con elementos individuales o múltiples.

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Astronomie; l'astronomie générale

Developed by the National Radio Astronomy Observatory.

órbita

Astronomie; l'astronomie générale

The path of one object about another (used here for an object orbiting the sun).

meteoros

Astronomie; l'astronomie générale

Small rocky and/or icy particles that are swept up by the earth in its orbit about the sun. Also called "shooting stars", they travel across the sky in a very short time, from ...

equinoccio

Astronomie; l'astronomie générale

Either of the two points (vernal, autumnal) on the celestial sphere where the ecliptic (which is the apparent path of the sun on the sky) intersects the celestial equator. Due to ...

cometa

Astronomie; l'astronomie générale

A celestial body orbiting the sun (though some may be ejected from the solar system by planetary perturbations) that displays (at least during a portion of its orbit) some ...

cenit

Astronomie; l'astronomie générale

The point directly overhead in the sky.

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Secteur d’activité/Domaine : Alimentaire (autres) Catégorie : Restauration rapide

chimmichurri

The Chimmichurri a.k.a. the Chimi is usually sold by stands and is most popular during the wee hours of the night. It consists of one all-beef patty, ...