it should be manual...no computers or electricity involved
poorly supported buildings...the fat lady when she's done singing..
get some scrap meatl and weld it all together to make something that looks like a hand pump. make a space at the bottom for the can and attach some springs to the base and the handle. push down to crush the can and the springs shoudl send the crusher back up.
Have a bowl of cold water near to the gas stove. Light a gas ring on the stove. Hold a can with the open-end down, over the heat (with a pair of salad tongs), for about 20 seconds to fill the can with hot air and combustion gases and thoroughly heat the can. Holding the can in the same position, quickly dunk the open end into the cold water. The can will completely collapse as the cold water causes the can and inside gases to contract and cause a vacuum in it. The external atmospheric pressure will do the crushing. (Try it also with a plastic pop or water bottle. Carefully pour about 1 or so of boiling water into the bottle and quickly cap it tightly. Leave it to stand on the kitchen counter-top for a short time...watch the effect).
put on some big boots,, and do some stampin..lol
