Light is energy that can take on many forms. Radio waves, microwaves, infrared, visible, ultraviolet, X-ray and gamma radiation are all different forms of light. (Illustration: NASA/CXC/M.Weiss)
2012 é o ano do rádio! Vem aí um super documentário sobre os 10 anos do título Paulista do Ituano!
Radio Wave - Wikipedia
Ham Radio Tutorial – HF Radio Wave Propogation
In November 1888, Heinrich Rudolph Hertz built an Oscillator, produced and detected radio waves.
Raspberry Pi RTL-SDR Scanner See what's in the radio waves around you using software-defined radio and a Raspberry Pi!
How to make globe radio wave animation in After Effects AND Cinema 4D
The Electromagnetic Spectrum -- Radio Waves to Cosmic Rays wave or particle quilt?