Blue skin? Cool, but how?

Started by Teyl Maktoyu Ayfìwopxä, May 20, 2010, 01:20:08 PM

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omängum fra'uti

Quote from: Ku'rända on November 05, 2010, 04:48:11 AM
Okay but...  That would imply exposure..  Lot's of the staff (Grace, for example) have been there for years, and they're still light-skinned, yet in the movie, babies and children are blue right from the get go.
Exposure itself wouldn't cause it. What people are saying is the exposure is an evolutionary pressure which causes the development of a skin pigment which happens to be blue.
Ftxey lu nga tokx ftxey lu nga tirea? Lu oe tìkeftxo.
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Luke Sully

Maybe it has something to do with the fact that the gas planet Polyphemus looks blue. So at night, when the light from the suns reflects on it, it colors the night on Pandora mostly blue. And maybe the Na'vi were nocturnal thousands of years ago, and hunted at night. Then the blue skin would give perfect camouflage.

Human No More

Mllte, the oxygen level on Pandora is almost identical to Earth's. Red blood implies haemoglobin or something similar as an oxygen-carrying method. They just have different natural pigmentation instead of melanin. As I said in my previous post, I think it's likely largely evolutionary with how well it can blend into the forest.
"I can barely remember my old life. I don't know who I am any more."

HNM, not 'Human' :)

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ToS: Human No More
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"God was invented to explain mystery. God is always invented to explain those things that you do not understand."
- Richard P. Feynman

true Navi

Quote from: omängum fra'uti on November 02, 2010, 10:14:41 PM
No it is still oxygen/nitrogen based, there is just much higher levels of other things like CO2, among others. The Na'vi still breath oxygen, and as such still have red blood. On Pandorapedia you should be able to find the numbers, but the Oxygen level is comparable to Earth.

the oxygen particals are bit more larger bit to much for sky people lung passage to take in and somethink else... i forgot

Ataeghane

Quote from: Luke Sully on November 06, 2010, 10:07:23 AM
Maybe it has something to do with the fact that the gas planet Polyphemus looks blue. So at night, when the light from the suns reflects on it, it colors the night on Pandora mostly blue. And maybe the Na'vi were nocturnal thousands of years ago, and hunted at night. Then the blue skin would give perfect camouflage.
Well, yeah, I think I found that kind of info in A Confidential Report on the Biological and Social History of Pandora.

Oer wivìntxu ngal oey keyeyt krr a tse'a sat. Frakrr.

Teyl Maktoyu Ayfìwopxä

I found this on the planet's info,

Air: Nitrogen, Oxygen, Carbon Dioxide (over 18%), Xenon (5.5%), Methane and Hydrogen Sulfide >1%

Diameter :    11447 km
Mass :   0.72 Earths
Gravity :   0.8 g
Atmospheric density :   1.2 Earths
Surface pressure :   0.9 atm

Pandora receives significant light from Alpha Centauri B (ACB). Because of this, for half the Polyphemian year its nights are never dark, but instead are more like Earthly dusk. At the closest point in its orbit, ACB is about 2,300 times as bright as Earth's full moon; at its farthest, it is still one hundred and seventy times as bright. During the other half of the year, when ACB is in the daytime sky, many Pandoran nights are illuminated both by Polyphemus's huge disk and reflected light from other nearby moons. Truly dark nights are uncommon. Polyphemus occasionally eclipses ACB at night for about one hundred minutes, but the light reflected by the planet still keeps the night from being dark.

When ACB shares the daytime sky with ACA, at its closest it adds about half a percent to the total illumination. When the 2 stars are close together in the sky, the effect of ACB's more orange light is unnoticeable, but as they separate over the years, an orange tint may be seen in areas shadowed from ACA's direct illumination. At its most distant, ACB is about 2,700 times dimmer than ACA and does not produce noticeable lighting effects. However, it still appears as a blindingly-bright tiny orange disk in the sky.

Because of its high axial tilt (29°), Pandora exhibits considerable annual variation in the day-to-night ratio. In addition, its elliptical orbit produces seasonal temperature variations and a range in daytime illumination of about ten percent.

#  Skin color is due to the presence of the cyanin pigment. It can "tan" to a darker purplish color after prolonged sunlight exposure.
# Despite their cyan skin color, the Na'vi have red blood, utilizing an iron oxygen-transporting compound similar to hemoglobin.

Ataeghane


Oer wivìntxu ngal oey keyeyt krr a tse'a sat. Frakrr.

ToktorGrace

Quote from: Mìhìl Taronyu on January 08, 2011, 09:25:02 AM
I found this on the planet's info,

(snip)

#  Skin color is due to the presence of the cyanin pigment. It can "tan" to a darker purplish color after prolonged sunlight exposure.
# Despite their cyan skin color, the Na'vi have red blood, utilizing an iron oxygen-transporting compound similar to hemoglobin.[/u]

Thanks for sharing! Btw where did you dig up the info?

And yeah.. HRH at purple Na'vi.... I may need to make some silly arts XD
Miracles are not contrary to nature, but only contrary to what we know about nature.  - St. Augustine

 



I speak Na'vi with a French accent...

Teyl Maktoyu Ayfìwopxä


Kea peyral

Kaltxì pongu! Oe tìng fì'u..

Mì 'ìnglìsì ;)

I see all kinds of theory.  But why over complicate? Let your eyes see..

Dusk, on Pandora.  See how it begins to get blue.  More predators come out at night.


Therefore we must simplify things and try to realise that it may just be as simple as; night camouflage.  Avoiding predators.

In this image you can see the colours very well.  You may also realise a similarity between the background colours and shapes, and that which appears on the body of the Na'vi.  Note that in this image, you can clearly see the Na'vi.  But they are not trying to hide at this time.


The next image will show you more camouflage elements.  Not just the colour similarities of the Na'vi and the environment around them, but also lets look at her hair.  Notice how it looks remarkably similar to the tree leaves/foliage that she is standing beside.


Finally, in this last image you will see how easily she could just disappear into the luminescent hue of the night.


I don't know if anyone else will agree.  But I believe the answer is as simple as that.

true Navi


Ataeghane

Well, it really makes sense. Mllte ngahu.

Oer wivìntxu ngal oey keyeyt krr a tse'a sat. Frakrr.

Human No More

Quote from: true Navi on January 07, 2011, 04:35:40 AM
Quote from: omängum fra'uti on November 02, 2010, 10:14:41 PM
No it is still oxygen/nitrogen based, there is just much higher levels of other things like CO2, among others. The Na'vi still breath oxygen, and as such still have red blood. On Pandorapedia you should be able to find the numbers, but the Oxygen level is comparable to Earth.

the oxygen particals are bit more larger bit to much for sky people lung passage to take in and somethink else... i forgot
No, they aren't, that's impossible and wouldn't affect anything even if it was. Humans breathe oxygen from Pandora's atmosphere after the CO2 and H2S have been filtered out by the exopack.
"I can barely remember my old life. I don't know who I am any more."

HNM, not 'Human' :)

Na'vi tattoo:
1 | 2 (finished) | 3
ToS: Human No More
dA
Personal site coming soon(ish

"God was invented to explain mystery. God is always invented to explain those things that you do not understand."
- Richard P. Feynman

true Navi

#53
oxygen partical thing i was told by morphersis

does someone know what a morphersis even is he not tell me because i not ask him

owen_thornton

quick questions for ya, why are we the colour we are? its because of a chemical in our skin. therefore i propose that the Na'vi peoples have a similar chemical, except it shows blue, instead of pink, and then maybe a purplish or violet colour, for brown, to black skin down here
"and so it ended, not with a bang or a whimper, but with nightmarish howls of glee" grubbs grady
"male tomboy, running, jumping, climbing trees and putting makeup on while ur upthere" points if u know this comedian
"you can never step in the same river twice" cannae remember XD but i likes it
"yesterday is history, tomorow is a mystery, but today is a gift, thats why it is called the present" master oogway

oeyä tireaioang syaw fko Aruthey.

Kerame Pxel Nume

Quote from: owen_thornton on January 10, 2011, 04:31:57 PM
quick questions for ya, why are we the colour we are? its because of a chemical in our skin. therefore i propose that the Na'vi peoples have a similar chemical, except it shows blue, instead of pink, and then maybe a purplish or violet colour, for brown, to black skin down here
The hue of all human's (except albinos) skin is the same, as it's caused by the same kind of pigment called melanin, which colour varies between red over brown to black. It's also responsible for the hair colour. What varies amongst humans is the concentration of melanin. Albinos are distinct by their inability to produce and thus total lack of melanin. The basic pink hue that's mixing into our skin's colour comes from the hemoglobin in our blood, but as one can see at albinos, this contributes only very little. So blue skin: Totally feasible, it just takes the right kind of pigment.

zineketaye

Quote from: Kea peyral on January 08, 2011, 12:40:07 PM
I see all kinds of theory.  But why over complicate? Let your eyes see..

I don't know if anyone else will agree.  But I believe the answer is as simple as that.

Ma Kea peyral! I explicitly like your functional approach ... and your way to derive it from the movie.
Thank you!
Projektprozente:
1 (aU): 5,0; 2: 0,0; 3: 26,3 (31,0; 26,3; 32,4)

owen_thornton

Quote from: Kerame Pxel Nume on January 10, 2011, 04:47:56 PM
Quote from: owen_thornton on January 10, 2011, 04:31:57 PM
quick questions for ya, why are we the colour we are? its because of a chemical in our skin. therefore i propose that the Na'vi peoples have a similar chemical, except it shows blue, instead of pink, and then maybe a purplish or violet colour, for brown, to black skin down here
The hue of all human's (except albinos) skin is the same, as it's caused by the same kind of pigment called melanin, which colour varies between red over brown to black. It's also responsible for the hair colour. What varies amongst humans is the concentration of melanin. Albinos are distinct by their inability to produce and thus total lack of melanin. The basic pink hue that's mixing into our skin's colour comes from the hemoglobin in our blood, but as one can see at albinos, this contributes only very little. So blue skin: Totally feasible, it just takes the right kind of pigment.

thats what i was getting at, i just didnt wnat to phrase it too wordly, as not to confuse things  :D ;D
"and so it ended, not with a bang or a whimper, but with nightmarish howls of glee" grubbs grady
"male tomboy, running, jumping, climbing trees and putting makeup on while ur upthere" points if u know this comedian
"you can never step in the same river twice" cannae remember XD but i likes it
"yesterday is history, tomorow is a mystery, but today is a gift, thats why it is called the present" master oogway

oeyä tireaioang syaw fko Aruthey.

Ftxavanga Txe′lan

Quote from: Mìhìl Taronyu on January 08, 2011, 09:25:02 AM
#  Skin color is due to the presence of the cyanin pigment. It can "tan" to a darker purplish color after prolonged sunlight exposure.
# Despite their cyan skin color, the Na'vi have red blood, utilizing an iron oxygen-transporting compound similar to hemoglobin.[/u]

Very useful, irayo nìtxan for sharing this! :)

Quote from: Kerame Pxel Nume on January 10, 2011, 04:47:56 PM
Quote from: owen_thornton on January 10, 2011, 04:31:57 PM
quick questions for ya, why are we the colour we are? its because of a chemical in our skin. therefore i propose that the Na'vi peoples have a similar chemical, except it shows blue, instead of pink, and then maybe a purplish or violet colour, for brown, to black skin down here
The hue of all human's (except albinos) skin is the same, as it's caused by the same kind of pigment called melanin, which colour varies between red over brown to black. It's also responsible for the hair colour. What varies amongst humans is the concentration of melanin. Albinos are distinct by their inability to produce and thus total lack of melanin. The basic pink hue that's mixing into our skin's colour comes from the hemoglobin in our blood, but as one can see at albinos, this contributes only very little. So blue skin: Totally feasible, it just takes the right kind of pigment.

This makes sense! :) Explains pretty much everything for me.

Kea peyral

Quote from: zineketaye on January 10, 2011, 05:52:18 PM
Quote from: Kea peyral on January 08, 2011, 12:40:07 PM
I see all kinds of theory.  But why over complicate? Let your eyes see..

I don't know if anyone else will agree.  But I believe the answer is as simple as that.

Ma Kea peyral! I explicitly like your functional approach ... and your way to derive it from the movie.
Thank you!

You are very welcome my friend.