why did we evolve eyes that see visible light?

Because most other wavelengths are blocked in the ozone layer.

However, there are birds that see ultraviolet light. Image above is from wikipedia.

i love light.

Another interesting observation that I made one day, is that the range of visible light frequencies extends almost just far enough to constitute what in the musical world would be considered an "octave." Whether this has any real significance or not, I don't know, but it does seem strange.

I think nature follows alot of very simple mathematical patterns, or is just mathematical in general.

Visible light also reflects off of things (objects) so they can be seen. Radio waves make it to the ground, but I don't think they reflect off of objects very well, so they aren't useful for "seeing" objects (at least in detail).

No matter what we would only see "visible" light. If we saw xrays we would call it "visible" light.

I DONT THINK THAT IS TRUE..

Do xrays reflect off of surfaces like light?

I was referring to a combination of attributes which make a particular wavelength of light (visible light) something which is more likely to be selected for.

You asked why our eyes evolved for visible light, and CoolW pointed out that visible light makes it through our atmosphere (but so do radio waves). So I pointed out that visible light also reflects off surfaces, unlike radio waves. The combination of qualities makes it a prime candidate for selection.

Correct, basic physics. The smaller the wavelength, the smaller objects you can see.

"Visible" is a term we apply to a light spectrum because it means we can see it.

The term "visible" would be used no matter which spectrum we see. If we could see xrays then xrays would be "visible".

ahhh, lol