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, in sea and 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 crops in fields. Nowadays it is also adopted for sowing seeds over a large area 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 modern 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 electromagnetic 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 education on a large scale can be carried on by means of the radio. Friendly and fruitful contacts with foreign countries can also be established.
Lastly, the radio has been improved to enable the audience to actually see the image of the person whom they hear. This is called the television. It helps persons who are far-away from their country not only to enjoy their national songs or concerts but also to see the artistes. Thus, it makes one feel the intensity of separation from his motherland lesser. Manufacturing processes, technical demonstrations and even lectures with experiments are being shown on the TV. screen. TV has become a powerful educative factor.
The list of modern inventions is very long, for it embraces the whole sphere of human knowledge. The people of every country should benefit by modern inventions. But they should at the same time see to it that it is not used for destruction.