Roosevelt with his fireside chats...
Warren G. Harding
In 1820 Hans Christian Oersted noticed that electricity could cause magnets to move. This was the first "discovery" of radio waves.
Radio waves....defineately radio waves. It will also kill small children
no, mechanical waves are not radio waves
Radio waves ARE electromagnetic waves.
Transverse. Radio waves are electromagnetic waves, which are transverse.
No. Radar waves are one category of radio waves. Think of all the radio waves that are all around you right now . . . AM radio, FM radio, police and fire radio, highway patrol radio, taxi radio, television picture and sound radio waves, cellphone radio waves, garage-door-opener radio waves, bluetooth radio waves, WiFi waves, microwaves ... and you can't see any of them ! Radar waves can easily be there in the group.
James Clerk Maxwell
Dr. Heinrich Hertz
Radio waves were detected in space for the first time in 1938. At the time, radio waves traveled around 60 light years away.
Radio waves are electromagnetic waves occurring on the radio frequency portion of the electromagnetic spectrum.
by changing the amplitude or frequency of the radio waves.