Colored Black Spectrum

Two miles ought to be good enough; at least not visible. Risible, though.

Are you serious tornado? Like really?

If you don't like my number, just move the decimal point around at your pleasure.

Here, this might help:

Oops, image didn't take; it was a dart board.

A fair square dart target you mean?

Yes.

'Black' is a relative term. It's an extremely low level of light in the vicinity of a much brighter region of light.

Sunspots on the Sun are a good example. They look black in a photograph of the Sun because they are much less bright than the surrounding 'surface' of the Sun. But in actuality they have a temperature of thousands of degrees and would look extremely bright viewed by themselves (in comparison to almost any light source here on Earth).

'Black' can be any color, and thus any spectrum, you want; it just has to be much dimmer (lower intensity) than some other light source near by, and that bright light source can have the same spectrum as the black area, or a different spectrum.

Could you somewhat elaborate a little, actually i find it hard to digest. But thanks for the insight.

Black is what the human eye interprets when something absorbs all visible wavelengths of the color spectrum whereas white reflects all wavelengths of color so I would assume all colors and wavelengths would be present in the colored black spectrum. Yes? No?

Kulas,

You come up with some real doosies of questions!

Here is something from Dorkapedia Wikipedia

Non-spectral colors

Among some of the colors that are not spectral colors are:

• Grayscale (achromatic) colors, such as white, gray, and black.
• Any color obtained by mixing a gray-scale color and another color (either spectral or not), such as pink (a mixture of a reddish color and white) or brown (a mixture of orange and black or grey).
• Purple colors, which in color theory include line of purples colors (such as, approximately, magenta and rose), and other variations of purple.
• Impossible colors, which can not be seen under normal viewing of light, such as over-saturated colors or colors that are seemingly brighter than white.

1 Å.

Excuse me lyn, have i offend you? Im sorry. Did i write somethingbyou dont like?

I am niether angel nor an a-hole.

GA. I know it's a joke, but a good way of looking at it. For anybody who doesn't know, that's the range visible to humans.

Black is an absence of light. As such it has no wavelength. So if one illuminates an object with a monochromatic light source that completely absorbs that wavelength of light it will appear to be black. (I'll ignore for now the object's thermal black body radiation and other effects.) If you illuminate the same object with a monochromatic light that is not completely absorbed the object will appear to be the color of the monochromatic light source.

Black color would be the absence of reflected light in the visible spectrum...

Black light on the other hand is ultraviolet in nature and has a purple glow....

What you see with a black light incandescent bulb is the visible spectrum remnants that bleed through the UV filter. If one selects just the ultraviolet wavelength of interest with a prism or diffraction grating monochomator then the human eye will not see any light. However, if one puts a florescent object (phosphorous, many minerals, some white papers, psychedelic poster, etc.) then that object will now glow.

Here's a nice video that explains ultraviolet light.

Then why do we see the color black? Unobservable spectrum should be transparent to the eye, like a perfect comoflouge. Hmmm. Interesting insight...

"It was just a colour out of space - a frightful messenger from unformed realms of infinity beyond all Nature as we know it; from realms whose mere existence stuns the brain and numbs us with the black extra-cosmic gulfs it throws open before our frenzied eyes."

Be careful where you let your mind wander to, for there are many thoughts that do not sit well in the skull that holds a healthy mind, yet sit and stay they do, and slowly 'redecorate' the skulls contents to be more comfortable to them.

(Quoting and channeling Lovecraft, for the uninitiated.)

I think you are just a troll.

Just curious. Whats a troll by the way?