It can be surprising which objects float and which don't. An apple floats, but a ball of aluminum foil does not. If that same ball of foil is shaped into a boat, it floats! And how is it possible that a huge ship made of steel can float?
Alcohol stoves have long been a favorite of ultralight backpackers. Using aluminum cans for the stove and alcohol for fuel, they’re cheap to make, easy to operate and weigh less than 2 ounces. Visit the Co-op Journal for a step-by-step guide.