ocr: SHORT WAVES ONOSPHERE - - - - - - - - - - - - loe WAVE - KEILECIED Short waves are reflectedby the ionosphere (a layer ofthe Earth's atmosphere) and by the ground. They can reflect many times in this way, - sO a short-wave radio station can be picked up around the other side of the world.
(.png)
(Dorling Kindersley).iso/article3/radi/radi1x.dib/radi1x.png)