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.
The average person creates over 4 pounds of trash every day and about 1.5 tons of solid waste per year (Busch Systems) Aluminum. Every year, Americans throw away almost $1 billion worth of aluminum cans (Aluminum Industry) Recycling 1 ton of aluminum cans conserves the equivalent of 21 barrels of oil. Recycling one aluminum beverage can saves enough energy to run a 60-watt bulb for 20 hours, a computer for three hours, or a TV for two hours. Recycling just 1 aluminum can saves enough electricity to run a laptop computer for 4 hours.