Radio (lat. radiare, radio "emit, irradiate, radiate in all directions"; radius "beam") — a method of wireless transmission of messages over a distance by means of radio waves, as well as the field of science and technology related to the study of physical phenomena underlying this method, and its use for communication, sound broadcasting, image transmission, signaling, monitoring and control, detection of various objects and determining their location, and many other purposes
The term "radio" was first coined by the English chemical physicist William Crookes in 1873 (to explain the results of some chemical experiments), i.e. almost 20 years before the invention of radio
2. Michael Smith is from Great Britain. (4) His birthday is (5) on 25th May. He (6) has got ten Olympic medals.
3. My (7) name is Sasha and I'm (8) Moscow Russia. It's a big city with a lot (9) of interesting places.
4. Bill and Jack are thirteen (10) years old. (11) They are British. Their favourite football (12) player is Pele.
5. The (13) colours of the Russian flag are red, blue and (14) white. You can see it on 12th June, (15) Flag Day.
6. Helen is (16) a good-looking girl (17) of medium height, with wavy (18) hair, who is from Russia.
7. Michael Phelps (19) is one of (20) the most famous swimmers in (21) the world.
