It is an age of science. Discoveries and inventions are taking place. Science helps man to manufacture a pin and also a jet plane. Man's comforts have increased and his powers strengthened. Man is now the master on land, on sea and in air.
One such marvel is the aeroplane. It enables us to travel hundreds of miles in a few hours. It carries mails quicker than the train or the steamer. Doctors are using the plane to rush to distant places to save the lives of their patients. The aeroplane has been used to save the lives of patients. It has been used to fight the locust pest that destroys the crops in the fields.
Now-a-days it is also adopted for sowing seeds over large acres of land. It is also useful to explorers in helping them to travel to places where other methods of transport cannot be used. With the help of aeroplanes man has flown over the Everest, the world's highest peak, and has reached the Poles. In war, it is used as a weapon of destruction.
Talkie is another modem marvel; images projected on a screen act and converse like actors on the stage. The talkie is an improvement on the movie. It makes the cinema show more realistic, for we are not in the company of dumb shadows that flit across the screen. The talkie has almost driven out the drama. The talkie machine would be very useful in schools.
Screen projections could be shown to the pupils to illustrate the lessons in their text books and also teach them new ideas which do not find place in text-books.
The radio is yet another marvel. Sounds are transmitted over long distances without the help of wires by electro-magnetic waves. A listener in Madras can hear on his radio-set the speeches made in the United Nations or in other world assemblies. The radio has become very popular.
News, music and other forms of entertainment from far-off countries can be heard on the radio. The radio can replace the teacher in school to a certain extent. The children learn many things. Besides, mass...