posted in General
at Mon, 31 Mar 2014 13:55:21 -0600
Among a cast of rivals, copper is warm, friendly and eager to please.
To the ancient Egyptians, copper represented eternal life. They had part of it right: Because it's in the cells of plants and animals, and in much of what we eat, it's fair to say it is vital to life.
Since it was first used more than 10,000 years ago, our dependence on copper has grown to the point that in 2012 we used 20 million tonnes of the metal.
The supporting actor of other metals, it's found in more than 400 alloys, ...