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LIQUIDE REFLECTEUR [1 record]

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Record 1 2004-02-13

English

Subject field(s)
  • Optics
CONT

The reflectivity of mercury does not vary over several weeks within the accuracy of our measurements (±3%). Although throughout this paper I assume that the reflecting liquid is mercury, it should be possible to make liquid mirrors with other reflecting liquids. I [Ermanno Borra] have also considered alloys of the alkali metals that could be used in a lunar or space telescope.

French

Domaine(s)
  • Optique
CONT

Le volume normal de mercure nécessaire à la réalisation d'un miroir de 1,6 mètre est d'environ dix litres, ce qui veut dire, à 30 dollars le kilogramme de mercure purifié, une somme de 4000 dollars, soit près de 30 pour cent du coût de l'ensemble de l'instrument, seulement pour le liquide réflecteur.

Spanish

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