Science Projects And Inventions

YOU  NEED:

• A single page of a newspaper

Let us make a "paper pistol." It can be fun. The "pistol" can be made by folding a single sheet of a newspaper as shown in the illustration. Hold it from one corner and swing it rapidly in the air. A part of the paper comes out with a cracking noise as if a pistol is being fired. Fold the paper in half along its length and breadth. Now flatten it and fold the corners on the long side along the Length wise fold line. Now fold the whole paper in half to ensure that that the folded corners stay inside. It ought to resemble the illustration in Figure 3. The outer corners need to be folded towards you so that it continues along the midline as in Figure 4. Now turn the packet over as in Figure 5 folding it towards you in half along the middle. Finally hold it at the bottom and make it go pop.

HOW DOES IT WORK?

The pistol shot like sound that you hear is created by rapid flowing out of a folded part of the newspaper. It comes in contact with the air as it is swung. The sound resembles that made when a paper bag filled with air is crushed.