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.
At the time, aluminum was 30 cents a pound, and it takes about 30 cans to make a pound. So in other words, I was making a penny a can. I gave up on it when I had a pickup bed full of crushed cans and made $38. But I put in many hours of work to get to that point to where I was only making a buck or 2 per hour of work.