Sep 18, 1993
In response to a curious viewer in Missouri, Beakman begins his second season with an explanation of how submarines work. Noting that they can be over six hundred feet long, Beakman explains that subs operate by controlling their buoyancy, changing their density by taking on water which allows them to rise and sink in water. After demonstrating the different densities of wood, coins and water, he then goes on to make a simple homemade submarine, using a plastic soda bottle, a balloon, some rubber tubing, straws, tape, coins and rubber bands. In the "Beakman Challenge,...