Science Projects And Inventions

YOU NEED :

• A sheet of newspaper

Hold a sheet of newspaper in your left hand and let the sheet hang down as shown in the illustration. Now can you poke your index finger through the paper?

While it seems unlikely, it can be done. Jab your finger as rapidly as you can at the centre of the paper. You need to be fast and then only will your finger go through the sheet

 HOW DOES IT WORK?

 When you jab your finger into the newspaper the air pressure behind the newspaper maintains a rigidity in the paper which is also reinforced by the newspapers inertia, this is what causes it to tear.