1
Physics, Astronomy & Cosmology / Radio Wave Electrical generator?
« on: 04/05/2007 01:28:24 »
The way crystal radios work is they have an antenna that gets hid by radio waves in the atmosphere and send electricity down the wire to a grounding point. Before it reachers there one of the frequenceys is seperated out and powers a little speaker to hear whats going on.
If theres enough energy to power a speaker in one frequency, why not set up large grids of antennas each taking every frequency of radio waves and use them to charge a battery or what now?
If theres enough energy to power a speaker in one frequency, why not set up large grids of antennas each taking every frequency of radio waves and use them to charge a battery or what now?