There have been innumerable inventions. One of the greatest inventions is the invention of medicines. There has been a series of tests carried out using animals as subjects and various medicines have been tried out on these animals to check their efficacy. Many fatal diseases can now be cured because we have the drug to fight those diseases. It has reduced the rate of infant mortality and increased the life span. Before these inventions millions of people died for lack of medical care. Science has given us many machines that have made our lives very comfortable.
Buses, cars, sewing machines, mixies, grinders, etc. are all machines that are used every day by us and the discovery of electricity has made it possible for us to change night into day and summer into a comfortable cool season. It is now easy to cultivate fields as we have tractors. New forms of irrigation are now being employed.
It is easier to protect the crops because of the use of various chemicals and pesticides. Even mosquitoes can be driven away because of the discoveries made in science. It has enabled man to entertain himself in many ways. TV, radio, video and the cinema are all popular means of entertainment.
Besides entertainment they educate the masses. Today the computer has made life even easier for us. The press, the means of communication, etc.
have all improved because of science and its gifts to us.