What's Blue?

Answer 1

A beam of light with a wavelength between 420 and 490 nanometers is blue. But that is not all.

Any set of frequencies which produce the same ratio of stimulation to cone cells is also perceived as blue by humans. Humans have cone cells which are most sensitive to of 564 nm, 534 nm, and 420 nm but are broadly sensitive at least 100 nm on either side. So it is quite possible to make something appear blue to a human by making it less red, for example (this is why water appears blue).

Likewise, any set of pigments or natural coloration which produces wavelengths of light that is perceived by humans to be 'blue' is ALSO said to be blue. So it is blue light which is reflected from the blue paint on the blue table. Technically it is only the LIGHT which is blue, but in linguistic parlance, they are all blue.

Beings incapable of seeing or that are equipped with different sensory capabilities will undoubtedly perceive very different things than the 'blue' most humans describe. There is little that can be done to share this perception, other than by describing the effects the color blue has on a viewers' psyche, which can be rather varied, but which are generally described as a calming one (which is perhaps why being sad is sometimes describes as 'being blue').

It also bears mention that being one of a very limited range of colors perceptible to humans, it has a very large associative context. Blue is present in the natural environment as sky and water, but is also heavily used in symbols for political, religious, and social organizations. Blue thus is likely to have numerous connotations for each individual perceiving it, which is very likely to flavour their experience as well.

Answer 2

Most blues are boring, but when mixed with other colors can be vibrant and exciting; like red to make purple and lots of yellow to make turquoise or a little yellow to make green.

This mixture, creating something better than the original by combinations, is a metaphor for life, I think.

I hope you weren't meaning to be really bland and asking about slang meanings for blue, like "feeling blue" for being sad, etc. or Picasso's Blue Period or something, especially Picasso, who has to be one of the most over rated bad artists who ever fooled critics into admiring his work.

Answer 3

The sky, the sea, the blue octopus, the blue crab, my paper clip holder, my calculator, my hair rollers, my ol' cell phone, my blanket, my pack of Bubblicious gum, MySpace...

Answer 4

the Clues are Blue.

Answer 5

Deep. If yourealy look at it it is deep. It is also a mix of yello and green= blue

Answer 6

blue is light waves and the impression they make upon our eyes which is then interpreted by our brains.

Answer 7

Cool !

Answer 8

a bruise with a little black

Answer 9

may b ur eyes r blue.........=O)

Answer 10

What is knowledge?