Law of Gravity and Gravitational Force by Isaac Newton

The law of gravity was developed by Isaac Newton, following his discovery of gravity and gravitational force. Gravitational force is one of nature’s greatest forces that create attraction between all objects in the universe. Gravity causes the attraction between masses near the surface of the earth. Several factors influence gravitational force, including the mass of …


Environmental Pollution in Qatar: Water Pollution and Sediment Quality Analysis

Environmental pollution in Qatar. Water sediment quality analysis. Environmental studies and Forestry in Qatar. Water and sediment quality in Qatar.