BUILD YOUR OWN HERO TYPE MODEL ENGINE
1. Set an aluminum can on its side and using a nail, carefully punch four equally spaced holes right above and around the bottom rim. Before removing the nail from the holes, push it slightly to the right so that the hole is at an angle and slanted.
2. Bend the cans opener lever straight up and tie a nylon string or any type of string to the opener.
3. Immerse the can in water until it is filled. Then lift the can by its string, watch the water leaving the can through the holes and watch it begin to spin.