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speculum metal · Vinony

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EntityQ910399· pop 14· linked from 45 articles

speculum metal

metal alloy

Connections

Mount Wilson Observatory

Categories

Bronze Copper alloys Optical materials

Sources

wikipedia.externallinksexternallink

Person

International Standard Book Number

Pliny the Elder

William Herschel

refracting telescope

William Parsons, 3rd Earl of Rosse

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What links here45 pages

40-foot telescope

history of the telescope

Sir Howard Grubb, Parsons and Co

astrological symbol

optical telescope

Yerkes Observatory

William Parsons, 3rd Earl of Rosse

Hamburg-Bergedorf Observatory

Newton telescope

reflecting telescope

Crossley telescope

planetary symbol

copper-based alloy

William Herschel

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