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Grégory telescope
Claude Paris1750
École Polytechnique
Palaiseau, France
Telescopes are glasses in which the lens is replaced by a large concave mirror. The special advantage of these instruments consists in the property that mirrors have of producing absolutely achromatic images, and as it is easy to give them large dimensions, we can impose considerable magnifications on them.
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Details
- Title: Grégory telescope
- Creator: Claude Paris
- Date Created: 1750
- Physical Dimensions: L. 83 x l. 25 x h. 54 cm
- Subject Keywords: Science, Technology, Physique
- Type: Artefact
- Rights: École polytechnique, Jean-Luc Deniel
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