COPPER: Manhattan Project artifacts up for sale; but history’s not the big attraction. “Nine really big magnetic coils, once part of the World War II calutrons that enriched uranium for the atomic bomb dropped on Hiroshima, Japan, are up for sale. The attraction to bidders, however, is apparently not the history of the Manhattan Project units, but rather the value of the metals. Each of the ‘D-ring coils’ reportedly contains 11 tons of copper. Copper has been trading at $3.15 to $3.25 a pound in recent days, so there’s obviously some money to be made there.”