While our forefathers lived in houses, built of mud and stone, with thatched roofs; we, now, not only have strong brick houses, but own even multistoried buildings. Our houses are air-conditioned so that we escape from the scorching heat of summer and the biting cold of winter.
Other areas, where scientific devices have brought about enormous changes, are the transport and communication. Using the telephone, we can communicate with people anywhere in the world. In fact, when one talks to a dear one abroad, one forgets the vast distance separating one person from another.
On a photo phone we can even see the picture of the person, we are speaking to. Then there is the telegraph for brief, urgent messages and the fax for detailed information to be relayed anywhere in the world. E-mail, internet and website have made communication far more easy, fast and reliable.
Hardly a day passes when we do not receive news and events from different countries and, of course, our own country through the newspaper, the radio and the T.V. We travel everyday in vehicles, which have come to us after long, arduous researches. We have buses, cars, scooters, cycles for long or short distance travels, and, of course, aeroplanes, which take us through the air and ships, which take us over oceans, and trains for long...