The development in science, particularly in physics, has changed the life style of man. To day, with the help of satellite communication, one can watch any event occurring anywhere in the world.A man can travel faster than sound He has landed on the moon and has dived deeper into the ocean bed.With powerful microscope. man can observe the motion of the tiny atoms and molecules of matter) With telescopes one can observe stars, galaxies and look for the edges of the universe. Most of the benefits we draw from science are due to the applications of physics. Energy plays an important role in social life.Physics has led us to utilize the energy stored in coal and petroleum It has enabled us to obtain enormous amount of energy stored in atomic nuclei. To day, electricity is our essential requirement. Electricity has made it possible to use radio, wireless, telephone, television, computers and other automatic machines. The invention of heat engine has enabled us to run vehicles on the road and fly airplanes in the air. We can preserve food in deep freezers. These benefits are due to the applications of physics. Physics is the basis of engineering and technology. Their combination has been continuously affecting
the social, economic and political life of man. Their coordination has provided man with numerous facilities. Scientific development has also produced some adverse effects on human society. Atom bomb and hydrogen bomb are extremely devastating inventions. The highly developed science and technology in the Western countries have provided them an economic and political dominance over the other nations of the world. Due to this, the poorer and developing countries are being exploited in many respects.
