Exploring Interference of Particles

Try a similar experiment with some particles. We can do this one of two ways, please pick the method that is most convenient for you.

Method 1
To simulate objects similar to Newton's particles of light you will use BBs. Place a blank piece of paper in a shallow pan. Over this paper place a sheet of carbon paper with the carbon side down.

To simulate the two slit experiment place the BBs in a small box with two holes in it. Over the carbon paper take your fingers off the holes and let the BBs drop. A carbon mark will appear where the BBs land.

HINT: A much better pattern appears if the carbon paper is placed on a hard surface that is angled so that when the BB's bounce they don't land back on the carbon paper.

Method 2
Take an aluminum can (i.e. a soup can) and use a can opener to make two holes in the bottom. Place a large shallow pan on the floor, or go outside on to a smooth surface. Fill the can with sand, covering the two holes with your fingers. Hold the can at least a meter above the pan (or ground) and remove your fingers allowing the sand to fall out.

Note which method you used and describe the pattern of particle locations below.