Viewing Thread:
"Just a thought"

This may belong somewhere else but I'm bored.

The sky is blue
The grass is green

Fair enough everybody knows that.

Now what I'm thinking is... you only know it is blue because over your life you have been told that it is blue and everything of that *colour* is blue.

But how do you know that somebody sees it as that exact colour... your blue might be somebody elses green.

Now your probably saying no the grass is green... but think about... what you see as green may be what I see as your blue.

I'll leave you to think about it :)

Thought about this for a long time since being told I was colourblind.

Okay, here's an answer for those of you that acutally undestood the question in the first place ;)

What everyone sees, is not exactly the same. Assuming we're all humans who aren't colourblind, then our blue will be blue for someone else - though it will almost certainly be a very slightly different shade.

The reason we'll all see blue, is because our eyes are all made up of the same things, (cones and rods), which will interpret light based on the frequency of the wavelength recieved. Light with a longer wavelength will always be converted to a redder colour (unless you have some serious eye mutation).

The reason we'll all see slightly different shades of blue, is because we all have different numbers of cones and rods. I can't remember which is which, but one will detect the amount of colour in something, and the other detects light. This is why some people may squint more than others in the same light, or have slightly better night vision.

Animals eyes work very differently though... and I don't know enough about animal eyes to tell you any more about that.

I used to wonder that colour thing too SHEEPY. And I also used to wonder if what I saw as a human, would actually be seen by someone else as a dog or something?? Well, I was just a stupid kid back then!

Just think how many people who are colour blind and don't even no it. I could be colour blind. When what you see is green i could see red and think it's green... Amazing!

Sheepy, although your post is though provoking, and as someone else has already said we do have unique eyesight. It is known as a common fact what blue is because we have so many different shades of it.

Its like a majority thing, most people will know that pink is pink. Although my dad thinks pink is more red and says so when looking at pink colours. We know the blue on the left of this screen in the banner is blue, because its what is universally recognised as blue...

...I am probably not going anywhere... Go read my old topic in Life. That had a thought :-D

Heh, yeah, interesting.

I'm red and green colour blind.

Does that mean I can't see red and green colours??

*taps side of nose*

I may not go to heaven... I hope you go to hell...

Ahem, sorry.

It's a possibility.

Now we can use istruments to measure the wavelenghts of the light from the sea, grass, sky. and define what colour they are by their wavelenghts.
But they couldn't do that many years ago.

I had that conversation with someone years ago but remember it to this day, It was only brief but it made me wonder for a long time. In the end I figured all our eyes are the same and the signal sent to the brain is the same so which ever colour your looking at unless your colourblind we all see the same colour.

however there is no proper way of seeing what someone else sees, we tell each other what we see but if there was some real way of looking at the world through somebody's eyes you might be shocked with the results!!

What? if everyone see's the grass and says that is green then it is green, i think thats it or maybe im wrong there is another ponder there