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2007-01-01 15:32:33 · 2 answers · asked by Anonymous in Science & Mathematics Chemistry

2 answers

Lancenigo di Villorba (TV), Italy

This is true, in medieval times technical processes enhanced toward higher quality's mirrors. But, in the elder times ages womens used primitives mirrors since ancient civilizations knew that someone metalic matters could be cold-worked (e.g. copper and its tin-alloys). After Middle Age, in the italian renaissance's period lived a famous scientist, L. Da Vinci (XV-XVI centuries) who wrote of arsenic'ores and other ones in addiction to tin-copper alloys..he said obtained better mirrors.
Nowadays, our mirrors are not metal substrated. How is possible? In the XIX century, J. von Liebig (german chemist) is among former scientist who converted a glass in mirrors. When you dipp a glass's face in an apposite mixture (Tollens's solution, silvery composition) you can warm this ensemble and few minutes are sufficient for a thin silver's layer on the glass's face.
You have a mirror.

I hope this helps you.

2007-01-01 22:15:36 · answer #1 · answered by Zor Prime 7 · 0 0

Q. When did mirrors first appear?
A.
Actually mirrors have been around since the Middle ages, but they were made of polished metal. Glass backed with a metalic coating replaced the older versions in 13th century Europe and quickly became a must have for the wealthy. Actually, mirrors made in Venice are well known for their workmanship and would be worth a small fortune now, so keep your eyes open when visiting antique shops. You just never know what you might find.

2007-01-01 23:43:53 · answer #2 · answered by mgs4Real 3 · 0 0

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