Urban Miners in Japan Find Precious Metals in Discarded Gadgets. For example, a ton of ore from a gold mine gives about 5 grams of gold, but a ton of cellphones gives 150 grams of gold.
One man's junk.....
Urban Miners in Japan Find Precious Metals in Discarded Gadgets. For example, a ton of ore from a gold mine gives about 5 grams of gold, but a ton of cellphones gives 150 grams of gold.
