HERE IS YOUR FREE ENERGY. HANDLE WITH CARE.

[0ne]

A cyrstal radio can collect radio waves with no external power needed. Only the power from the radio signal is used.

http://en.wikipedia.org/wiki/Crystal_radio

Radio Waves are just "electromagnetic radiation" at a certain frequency. When that frequency is raised or lowered, it is no longer classified as radio waves, even though it is still the same force.

http://en.wikipedia.org/wiki/Electromagnetic_radiation

This means, a cyrstal radio is a free energy device taping into FREE ELECTROMAGNETIC RADIATION.

Modify the tuning coil of your radio, and you can pick up ALL OTHER ELECTROMAGNETIC RADIATION including microwaves, terahertz radiation, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.

If you can capture radio waves with an antenna and a coil, then you can capture microwaves, terahertz radiation, infrared radiaiton, visible light, ultraviolet radiation, x-rays and gamma rays that same exact way because ALL of those forces are the same thing! The only difference is the frequency.

Teslas free energy reciever was basicly a simple radio. Instead of a speaker, he used a motor!

D.K.S.

[Rosphere]

If you can capture radio waves with an antenna and a coil, then you can capture microwaves, terahertz radiation, infrared radiaiton, visible light, ultraviolet radiation, x-rays and gamma rays that same exact way because ALL of those forces are the same thing! The only difference is the frequency.

I was thinking the same thing earlier this week.  Do you have any ideas about this special antenna; size, shape, material(s)?

Also, what changes would need to be made to the basic radio circuit to accept this broad band of frequencies, all at the same time?

EDIT: I just did a google image search on, "multi frequency antenna," and got 188 hits.

[Crane]

   The size of an antenna is proportional to it's wavelength. Ultra long waves needs very large antennas while shorter waves needs smaller antennas. The shorter waves in use these days, if I'm not mistaken, are high definition radar, in the order of 1 cm... You can always try to build very tiny antennas for the far infrared but I doubt you can do something useful since no diodes can't operate at their frequencies.  

   To get energy from visible light I suggest solar cells. Simple and easy, and more effective than before, thanks to technological advances.

   X-rays and cosmic rays are powerful, yes, but they aren't very powerful on earth. Luckily, since they are a health hazard... No way to get usable enery from these AFAIK.

A.A.

[0ne]

If I were you, I would be more focused on the tuning coil, not the antenna, because the coil is basicly the antenna. Although, soft iron is a good metal to use for an antenna. Soft iron loves magnetic force. For best results, at night, point the antenna exactly precisely at the North star. Did you know that radio stations are weaker in the day time, compared to night? The Sun disrupts things.

[Rosphere]

...I would be more focused on the tuning coil,...

You mean, "detuning coil," in this case, no?