Understanding the center of gravity.
Try this simple experiment. Stack two books on top of each other on the floor. Place a third single book far enough away on the floor so you can lay a small board across the books to form a bridge.
Place the second board next to the first board to form a V Track with the open end of the V on the stack of two books. Tape the boards to the books to keep them from spreading apart. Tape the bowls of the funnels together. Place the joined funnels on the lower end of the track formed by the boards. The joined funnels will now roll up the incline. Although the joined funnels appear to defy the laws of gravity, in reality the center of gravity moves downward as the joined funnels travel along the inclined boards. The center of gravity is located at the large part of the joined funnels. If we add equal overall weight to the large part of the funnels it will make a quicker trip through the Gravity V Track.
Question: If you were to re-position the books so that the Gravity V Track was open on each end, can you build up enough speed and momentum to fall out of the end of one V Track and onto the beginning of another?
