Difference between revisions of "Speculum"
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speculum (Fr.); Spiegelmetall (Deut.); speculum (Ned.) | speculum (Fr.); Spiegelmetall (Deut.); speculum (Ned.) | ||
| − | == | + | ==Resources and Citations== |
G.S.Brady, ''Materials Handbook'', 10th edition, McGraw-Hill, New York, 1971. | G.S.Brady, ''Materials Handbook'', 10th edition, McGraw-Hill, New York, 1971. | ||
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 15:53, 2 June 2022
Description
A mirror or polished metal plate. Speculum is a highly reflective, noncorroding, bronze alloy composed of about 67% copper and 33% tin (Brady 1971). The high tin alloys give almost as much reflecting power as silver. Ancient Roman and Egyptian mirrors used 14-24 % tin while Greek mirrors contained up to 32% tin. Chinese speculum contains about 8% antimony and 10% tin.
Synonyms and Related Terms
speculum (Fr.); Spiegelmetall (Deut.); speculum (Ned.)
Resources and Citations
G.S.Brady, Materials Handbook, 10th edition, McGraw-Hill, New York, 1971.