Radio waves are now gaining significance.Joseph Tate of California has patented the Tate Ambient Power Module.
An ambient power module (APM) is a simple electronic circuit which, when connected to antenna and earth ground, will deliver low voltage up to several milliwatts. The amount of voltage and power will be determined by local radio noise levels and antenna dimensions.
Tate made effective use of the APM by loosely wrapped wire around a 3-inch plastic tube with a whip antenna. The resultant Tate APM converts radio frequency energy to power that can be usefully applied in power devices such as clocks, radios and smoke detectors. The device has been known to give 36 volt/9 watts. It does away for the need for batteries by extracting energy from natural and man made radio waves.
The power produced seems to improve near bridges, ships and any thing containing a great deal of metal. An interesting side line is that the inventor claims to be able to detect earthquakes by the rise and fall of energy levels.
Via: Triple Pundit
