Traduzioni di „speculum metal“ nel dizionario inglese » arabo

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speculum metal METALL

speculum metal

سبيكة المرايا المعدنية مزيج من النحاس والقصدير

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inglese

He started building his own reflecting telescopes and would spend up to 16 hours a day grinding and polishing the speculum metal primary mirrors.

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After much experiment, he chose an alloy (speculum metal) of tin and copper as the most suitable material for his objective mirror.

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For nearly 200 years speculum metal was the only mirror substance that could perform this task.

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Glass was also more thermally stable than speculum metal, allowing it to hold its shape better through temperature changes.

en.wikipedia.org

He chose an alloy (speculum metal) of tin and copper as the most suitable material for his objective mirror.

en.wikipedia.org

Speculum metal was very hard to cast and shape.

en.wikipedia.org