A shadow is an area where direct light from a light source cannot reach due to obstruction by an object. It occupies all of the space behind an opaque object with light in front of it. The cross section of a shadow is a two-dimensional silhouette, or reverse projection of the object blocking the light.Shadow play or shadow puppetry is an ancient form of storytelling and entertainment using opaque, often articulated figures in front of an illuminated backdrop to create the illusion of moving images. It is popular in various cultures. At present, more than 20 countries are known to have shadow show troupes.In this video you can find shadow puppetry show performed by a man.A must watch video
