
When we move in a partial darkness or on a full moon day, we see our shadow behind us. Do these shadows posses weight. It is unusual to read it, but it is true our shadow too cast some weight which we neglect. Some of you may have some question on how that possible if light is a form of energy having no weight. It is true also the light do not have weight but as they are a form of energy when they travel through air medium they push the particles...