Radio Coloring Page

Radio waves are invisible, and they travel through the air at the speed of light. In 1895 an Italian inventor named Guglielmo Marconi used them to send a signal without any wires, first across his family's fields and then over longer distances. In 1901 he sent one across the Atlantic Ocean, from England to Newfoundland, which is now part of Canada.

At first radios could only send beeps in code, which was a big help to ships at sea. By the 1920s stations were broadcasting music and news, and families gathered around the radio at home.