Celebrating ingenuity, invention and imagination brought to life on a grand scale, MODERN MARVELS tells the fascinating stories of the doers, dreamers and sometime-schemers who created everyday items, technological breakthroughs and man-made wonders. It was called the "mother lode"- a deposit of silver so massive that it would produce $300-million in its first 25 years of operation, establish Nevada as a state, and bankroll the Union Army in the Civil War. See how the Comstock Lode - named after an early investor--proved to be a scientific laboratory that pioneered vast improvements in mining technology and safety, including innovations in drilling, ventilation, drainage, and ore processing. Silver mining is the resource extraction of silver by mining.

Silver is found in native form very rarely as nuggets, but more usually combined with sulfur, arsenic, antimony, or chlorine and in various ores such as argentite (Ag2S), chlorargyrite ("horn silver," AgCl), and galena (a lead ore often containing significant amounts of silver). As silver is often found in conjunction with these or alloyed with other metals such as gold, it usually must be further extracted out through amalgamation or electrolysis.

Silver mining has been undertaken since ancient times. As silver is a precious metal often used for coins, its mining has historically often been lucrative. As with other precious metals such as gold, newly-discovered deposits of silver ore have sparked silver rushes of miners seeking their fortunes. In recent centuries, large deposits were discovered and mined in the Americas, influencing the growth and development of Mexico, Andean countries such as Bolivia, Chile, and Peru, as well as Canada and the United States.

Film Duration: 44 min .