Battery-Powered Balancing Robot DIY STEM Kit
$9.99$5
|
|
(Latin cuprum , from the island of Cyprus) It is believed that copper has beenmined for 5,000 years.
Copper occasionally occurs native, and is found in many minerals such as cuprite,malachite, azurite, chalcopyrite, and bornite.
Large copper ore deposits are found in the U.S., Chile, Zambia, Zaire, Peru, andCanada. The most important copper ores are the sulfides, the oxides, and carbonates. Fromthese, copper is obtained by smelting, leaching, and by electrolysis.
'I beseech you to take interest in these sacred domains so expressively called laboratories. Ask that there be more and that they be adorned for these are the temples of the future, wealth and well-being. It is here that humanity will grow, strengthen and improve. Here, humanity will learn to read progress and individual harmony in the works of nature, while humanity's own works are all too often those of barbarism, fanaticism and destruction.'