Colors

martynrss2 · **Posted:** Mon Aug 30, 2010 10:56 am

I've actually thought about this before (especially after watching the matrix!), about how we could all view things differently, such as colours shapes and all that.

Really screws with your mind thinking about it for too long.

radio_friendly_unit_shifter · **Posted:** Mon Aug 30, 2010 3:06 pm

yellow

Floyd_The_Barber · **Posted:** Mon Aug 30, 2010 3:13 pm

radio_friendly_unit_shifter wrote:

yellow

blue

radio_friendly_unit_shifter · **Posted:** Mon Aug 30, 2010 3:23 pm

Floyd_The_Barber wrote:

radio_friendly_unit_shifter wrote:

yellow

blue

black

Floyd_The_Barber · **Posted:** Mon Aug 30, 2010 5:46 pm

radio_friendly_unit_shifter wrote:

Floyd_The_Barber wrote:

radio_friendly_unit_shifter wrote:

yellow

blue

black

orange

Floyd_The_Barber · **Posted:** Mon Aug 30, 2010 5:50 pm

Floyd_The_Barber wrote:

radio_friendly_unit_shifter wrote:

Floyd_The_Barber wrote:

radio_friendly_unit_shifter wrote:

yellow

blue

black

orange

rainbow

JSJH · **Posted:** Mon Aug 30, 2010 6:09 pm

Cosmic, man....

Twelvebar · **Posted:** Mon Aug 30, 2010 6:13 pm

d3nyd94 wrote:

Think about it, Every person may see a different color spectrum. For example your red might be their blue but you will both identify the color as red because everybody is taught that this color is red or blue or green ect. and even though their red may be your blue you will still be able to point out the color red because that was the name that you were taught to pair with that color.

You are a bit short of the mark of what is really going on though.

One thing most people don't understand is that colour is not actually a property of light. it is only a sensation occurs in the brain. a little trick we evolved to easily sort out different wavelengths of light.

What is really happening when someone points out the colour red, as you hypothesize in your example is identifying a common physiological response to exposure to a known wavelength of light.

There is no such thing as colour or sound in the natural world, they are all just internal responses to certain vibrations hitting our eardrums (in the case of sound,) and certain frequencies of light hitting the cone cells in our eyes (in the case of color.)

Red is only the name we give to the physiological response to that wavelength. We all have the same response due to shared physiology, a genetic feature passed through our DNA, and measurable, and shared between species with the same genetic construct we have (eyes.) This has been measured by tracking brain activity.

in fact mammals are among the most visually impoverished of sighted creatures. We (descendants of the Old World Primate family,) have only 3 types of cone cells, responsive to different ranges of wavelengths of light.Most mammals actually only have 2. A lot of lizards, fish and birds have 4, and can see into the near UV spectrum of light, possibly actually even into it, in the case of some fish. At some point our mammalian ancestors had all 4 different cones and saw through the same spectrum, but during the reign of the dinosaur mammals were forced to become primarily nocturnal.
this meant the cones not needed for seeing in dim light were not as advantageous for survival, and were actually lost. after dinosaurs died out, and the mammalian population skyrocketed, and the various species began to diversify our Primate ancestors reclaimed one of these cones through genetic mutation, although not responsive to exactly the same frequencies as the species who still sport the original. that is why primates have one more type of cone than most mammals, but still far less visual range than most species with eyes.

guitslinger · **Posted:** Mon Aug 30, 2010 6:14 pm

A doctor here developed a test to guage the degree of colourblindness in people.She assembled dots of similar colours that were close in hue and just slightly different.A normal sighted person could discern a number inside the dots but depending on the degree of colourblindness some couldn't see anything.

Goranm · **Posted:** Tue Aug 31, 2010 1:58 am

Twelvebar wrote:

d3nyd94 wrote:

Think about it, Every person may see a different color spectrum. For example your red might be their blue but you will both identify the color as red because everybody is taught that this color is red or blue or green ect. and even though their red may be your blue you will still be able to point out the color red because that was the name that you were taught to pair with that color.

You are a bit short of the mark of what is really going on though.

One thing most people don't understand is that colour is not actually a property of light. it is only a sensation occurs in the brain. a little trick we evolved to easily sort out different wavelengths of light.

What is really happening when someone points out the colour red, as you hypothesize in your example is identifying a common physiological response to exposure to a known wavelength of light.

There is no such thing as colour or sound in the natural world, they are all just internal responses to certain vibrations hitting our eardrums (in the case of sound,) and certain frequencies of light hitting the cone cells in our eyes (in the case of color.)

Red is only the name we give to the physiological response to that wavelength. We all have the same response due to shared physiology, a genetic feature passed through our DNA, and measurable, and shared between species with the same genetic construct we have (eyes.) This has been measured by tracking brain activity.

in fact mammals are among the most visually impoverished of sighted creatures. We (descendants of the Old World Primate family,) have only 3 types of cone cells, responsive to different ranges of wavelengths of light.Most mammals actually only have 2. A lot of lizards, fish and birds have 4, and can see into the near UV spectrum of light, possibly actually even into it, in the case of some fish. At some point our mammalian ancestors had all 4 different cones and saw through the same spectrum, but during the reign of the dinosaur mammals were forced to become primarily nocturnal.
this meant the cones not needed for seeing in dim light were not as advantageous for survival, and were actually lost. after dinosaurs died out, and the mammalian population skyrocketed, and the various species began to diversify our Primate ancestors reclaimed one of these cones through genetic mutation, although not responsive to exactly the same frequencies as the species who still sport the original. that is why primates have one more type of cone than most mammals, but still far less visual range than most species with eyes.

Is this forum great or what! So rich! Outstanding! I love it! More! More!

radio_friendly_unit_shifter · **Posted:** Tue Aug 31, 2010 2:17 am

Floyd_The_Barber wrote:

radio_friendly_unit_shifter wrote:

Floyd_The_Barber wrote:

radio_friendly_unit_shifter wrote:

yellow

blue

black

orange

rainbow

white

ripitup555 · **Posted:** Tue Aug 31, 2010 4:52 am

Once worked on a machine that took months to fabricate and a few days to wire up, multi coloured, multi stranded cable, think multi coloured spaghetti, just nearing the end the designer paid a visit to see how things were going with his baby, as he walked past I asked him to hand me the wire snips, when he handed the blue handled ones I said not those ones the blue ones , the look on his face as he stopped halfway and turned around was priceless :lol:

Twelvebar · **Posted:** Tue Aug 31, 2010 8:25 am

ripitup555 wrote:

Once worked on a machine that took months to fabricate and a few days to wire up, multi coloured, multi stranded cable, think multi coloured spaghetti, just nearing the end the designer paid a visit to see how things were going with his baby, as he walked past I asked him to hand me the wire snips, when he handed the blue handled ones I said not those ones the blue ones , the look on his face as he stopped halfway and turned around was priceless :lol:

hah!!

You have a bit of a nasty streak, which i admire!!

Ceri · **Posted:** Tue Aug 31, 2010 9:07 am

guitslinger wrote:

A doctor here developed a test to guage the degree of colourblindness in people.She assembled dots of similar colours that were close in hue and just slightly different.A normal sighted person could discern a number inside the dots but depending on the degree of colourblindness some couldn't see anything.

These things?

That system was in fact invented by a Japanese opthalmologist, Shinobu Ishihara, in the 1910s.

Amusing aside: my dad taught in art schools most of his working life. During the '70s they briefly included testing for colorblindness using the Ishihara system for candidates applying to the degree courses. But they had to drop it very quickly - far too many of the good students turned out to be colorblind. Amazing how many artists (especially in graphics) can't see all the colors - strange but true.

Then again, excellent classical percussionist Evelyn Glennie has been profoundly deaf since birth, so...

Cheers - C

Floyd_The_Barber · **Posted:** Tue Aug 31, 2010 9:52 am

Ceri wrote:

guitslinger wrote:

A doctor here developed a test to guage the degree of colourblindness in people.She assembled dots of similar colours that were close in hue and just slightly different.A normal sighted person could discern a number inside the dots but depending on the degree of colourblindness some couldn't see anything.

These things?

That system was in fact invented by a Japanese opthalmologist, Shinobu Ishihara, in the 1910s.

Amusing aside: my dad taught in art schools most of his working life. During the '70s they briefly included testing for colorblindness using the Ishihara system for candidates applying to the degree courses. But they had to drop it very quickly - far too many of the good students turned out to be colorblind. Amazing how many artists (especially in graphics) can't see all the colors - strange but true.
i only see one shade of green and one of orange...

Then again, excellent classical percussionist Evelyn Glennie has been profoundly deaf since birth, so...

Cheers - C

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