How does a simple AM radio work.?

Question

Just a SIMPle exlanation of how AM radios work. Just the small details thanks.

Answer 1

AM stands for Amplitude Modulation. It consists of two waveforms: A high frequency carrier wave from 500KHz to 1600KHz and the Audio waves from 20Hz to 20 KHz.

The audio waves are mixed with (modulates) the carrier wave in such a manner that they change the amplitude of the carrier at the frequencies of the audio signal.  

An AM radio demodulates the signal so that you hear the audio portion.

Answer 2

AM (Amplitude Modulation) is decoded or Demodulated by running the signal through a diode detector and capacitive filter which strips the Radio frequencies off and leaves only the Amplitude variations that carry the intelligence.  The simple Crystal radio was a crystal diode.