Page 272 - New Medley 5 Semester 2
P. 272

Airways

               Man has always wanted to fly. He used

               balloons filled with hot gases to go up into
               the air. The Wright brothers of America

               made a successful attempt to fly in the
               air in 1903. They developed an aeroplane

               which flew a distance of about 230 metres.
               This flying machine was named The Flyer.                                      Aeroplane

               Modern aeroplanes fly at a height of about 11 km with a speed of about

               1000 km per hour. Some aeroplanes can carry about 400–500 passengers.

               The aeroplanes move in the air with the help of jet engines.

               Today, practically all the countries in the world  are connected by air
               routes.  The  main  needs  of  air  transport  are  airports,  aeroplanes  and

               clear weather.  Due  to  its  speed,  airways  have  become  the most  popular
               means of transport in the world, although it is far more expensive than

               any other means of transport.

               The busiest airports in the  world are New York, Los Angeles, Chicago,

               Montreal, London, Paris, Frankfurt, Rome, Jeddah, Mumbai, New Delhi,
               Hong Kong and Tokyo.


               In India, the government and the private airlines provide regular services
               to major cities and also to all the neighbouring countries.


               Waterways

               Early humans used rafts and simple boats
               for thousands of years. The invention

               of the steam engine and the growth of
               industries helped in the making of large-

               sized boats, called ships. A ship can carry
               heavy cargo and a large number of people

               to far-off places and at a fast speed. Water
               transport is now the cheapest means of                                           Ship

               transport.





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