At one side of the vacuum chamber there is a pinhole in the wall.
EditByBSEditor: In a classic physics experiment, a magnet is encapsulated within a vacuum chamber. The magnet is shaped such that the two poles point towards one another but there is a significant gap Between them. At one side of the vacuum chamber there is a Pinhole in the wall. Atomic Hydrogen gas, not molecular hydrogen, is shot through the pinhole in a thin stream. As the hydrogen approaches and enters the gap between the two poles of the magnet, the gas splits into two equal streams. One stream arcs over to the North Pole and the other stream goes to the south pole. you can free download PyramidalProtons now.