A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. A cache is a smaller, faster memory, closer to a processor core, which stores copies of the data from frequently used main memory locations.
It takes approximately 31 empty aluminum cans to equal 1 pound. As of 2014, the average weight of an empty aluminum can is 14.9 grams.
In 1972, approximately 26,500 tons of aluminum cans were recycled and today that number is estimated to be as high as 800,000 tons. Over 100,000 Aluminum cans are recycled every minute in the U.S. alone. Every can that is recycled means more resources that are available at a lesser cost.