The High Price of Copper

The High Price of Copper
Froth flotation, once called """"the single most important operation used for the recovery and upgrading of sulfide ores,"" uses a number of surfactants and wetting agents to exploit the natural differences in hydrophobic reactions between copper ore … Read more on Gizmodo India

Excerpts from Sara's email to the author
I was so addicted to meth that I could shoot up an 8 ball in as few as three hours time. The misery I felt was … I can say no today, but I know that without daily maintenance of my recovery program, I will die in the disease of addiction. As Scott S … Read more on Harrison Daily