Ajax loader
By using our website, you agree to our use of cookies as described in Cookie Policy.

Can't find what you're looking for?

 

Be sure to Sign in to see all available content.

 

If you don't have an account, Register here.

Search results for:

ENVIRONMENT-PERU/MINING
RTR2D3CY
April 21, 2010
A worker cleans bubbles that have risen to the surface attached to pebbles of gold from a machine invented...
Lima, Peru
A worker cleans bubbles that have risen to the surface attached to pebbles of gold from a machine at...
A worker cleans bubbles that have risen to the surface attached to pebbles of gold from a machine invented by Peruvian engineer Carlos Villachica at a laboratory in Lima April 16, 2010. Villachica says he has come up with an environmentally sound way to isolate gold from clumps of sand without using toxic mercury that wildcat miners in the Amazon basin rely on to extract the precious metal, then dump into rivers. The small, cylindrical machine blends mineralized dirt with jets of pressurized air, water and biodegradable chemicals in a centrifugal motion that produces a cocktail of thousands of bubbles that rise to the surface attached to specks of gold. Picture taken April 16. REUTERS/Pilar Olivares(PERU - Tags: ENVIRONMENT SCI TECH)
Sort by
Display
Items per page
Page
of 1