In reply to various correspondents who are desirous of as certaining the best methods of coating glass with silver ... concrete and other fireproof material. A Remarkable Little Steamer.

Cranking up the air conditioner is one way to keep buildings cool, but it guzzles energy. Passive materials can regulate ...

Mercury glass, which was first patented in 1849, was commonly called “poor man’s silver” because of its shiny, silvery finish ...