cellular phones use radio signals and repeater stations.
Vacuum tubes still find uses where solid-state devices have not been developed, are impractical, or where a tube has superior performance, as with some devices in professional audio and high-power radio transmitters. Tubes are still produced for such applications.
the person next to uses the radio to listen to it
One uses infrared light and the other uses radio waves. Hope this helps!
Can be used to carry messages such as mobile phone texts and CV radios
"Radar" comes from RAdio Detection And Ranging. If it didn't use radio it would be called something else.LIDAR (LIght Detection And Ranging) is laser instead of radio. That uses light.
it doesn't, it uses microwaves
bluetooth is an open wireless protocol for exchanging data over short distances. it uses short length radio frequencies. bluetooth uses a radio technology called frequency-hoping spread spectrum.
Thinnet 10BASE2 cable
Via iTunes you can download podcasts of different radio programs (presuming they have been made by the program) and listen to them the same as any other music on your iPod. Also, often radio stations have Apps that allow you to stream programs live, although this usually uses a lot of downloads, so be careful.
anybody on earth
hearing FM and am news in radio
Radio-sodium is used to check action of medicines