PlaneShift
Gameplay => General Discussion => Topic started by: Saphire on April 18, 2004, 01:52:33 am
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Simple question. :)
If we\'re in a cave, why is there a blue sky? Shouldn\'t it be earth-like tones? (Brown, grey, orange, deep red, etc)
If there\'s a blue sky, that means that there\'s a atmosphere possibly thick enough to create weather.
So, is this discrepancy going to be fixed or are the walls just painted blue from the radiation of the crystal or simply colored blue by ? ?(
It might confuse players when a playable version comes out as to why there\'s no rain or clouds, but has a blue sky... while the setting is in a cave. 8*/
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Well I have another confusing question for you what came first the chicken or the egg, think about it! I know the answer :)
The sky is blue because thats how it was made, don\'t worry about the fact we are in a cave!
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Actually, I agree with Saphire. I never really thought about it until he mentioned something. It seems kind of weird now that I know it...
Hehe. :P
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I think I\'ve come up to an answer as to why the sky would be blue. Well, actually two of them.
Answer one: That\'s what the people in the art department painted the sky. Notice that it still retains the texture of rock though.
Answer two: It would probably be blue. Nitrogen, the most common element in the atmosphere, scatters blue light. If you use a telephoto lens and zoom in on a very distant object you will notice that the object looks bluish. That is due to the Nitrogen scattering blue light. If the ceiling in the large cave is high enough the blue light, coming from the crystal up top, would tend to get scattered about, thus creating a blue haze.
Have a nice day!
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So, you are saying the Crystal gives off Nitrogen? That could be a possibility, I just never thought of that. :P
The first answer was just an obvious answer. I like the second one better. ;)
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Yes, that\'s a good explanation, but the sky tone should be changed just a little (or a lot) to make it more fitting. Yours is an excuse, not an explanation. So I suggest it be changed just enough to shut people up.
Who\'s with me?
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Well actually number 2 is the answer. Number 1 was a joke. However, the develoopers can color it any darn thing they like. If you\'re actually interested in this here\'s a link. I thought it was a fun read.
http://www.why-is-the-sky-blue.org/why-is-the-sky-blue.html (http://www.why-is-the-sky-blue.org/why-is-the-sky-blue.html)
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Azure Sun: Emits light
If the crystal is Azure then in theory the light it gives off should have a bluish color, since Azure is a tinted blue color it should therefore give off a bluish color sky, even though its underground in cave.
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I\'d guess the cave ceiling/sky is blue because of the blue illumination radiated from the azure crystal.
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i notice no one has corrected him that it does rain in the cave but i\'m not sure why
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yes if you havnt noticed already it does rain, there is an atmosphere. read the \"planeshift world\" thread. it explains alot. there is no mystery in why the sky is blue in planeshift. i dont know how this thread has gotten this far, i thought someone would have noticed the pointlessness of it all by now.
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In Atomic Blue(previos release) the sky wasnt blue, there was no sky at all. Why is it now blue... if there is an explanation i forgot it :D
Yes, it rains, because... eh, its no rain, its just water falling from the roof of the stalactite.
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can\'t believe so many people are wondering about that :D
\"Azure Sun\"... c\'mon... not hard to guess ;)
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AFAIR it\'s also on the homepage
AFAIR it\'s the Azure Sun (=huge crystal on the \"ceiling\", through which the (real) sun\'s light passes ...so the sky should be more azure then blue, but that\'s just a small tint glitch
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if you look carefully there\'s a rock texture in the sky to :p
so the azure christal emitting bleu light theorie could be right
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*pokes*
Blue-grey rock?
Nah, couldn\'t be...
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no but there are some kind of black lines in the air :p you can see it if you check the pics :p it could be just clouds tough...probably that ^^
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well the azure sun is propably so high up that it makes an magical barrier that is reflected by the water.
which makes the sky blue.
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Personally, I think the sky isn\'t done yet, they just colored the rock blue right now just...because. In CB I bet there will be clouds and stuff too...
O.T. DepthBlade, How many sigs do you have, you make a new one every week lol.
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Originally posted by DepthBlade
Well I have another confusing question for you what came first the chicken or the egg, think about it! I know the answer :)
The sky is blue because thats how it was made, don\'t worry about the fact we are in a cave!
LOL...
\"The chicken arrived at 10:31 a.m. Wednesday. The staff at the post office told me that this was the first chicken anyone had mailed to the James A. Farley General Post Office in recent memory, and perhaps ever.
The egg arrived that same day, at 9:37 p.m., eleven hours after the chicken.
It has now been empirically determined that the chicken came first, the egg second.
However, seeing the history of previous questions that were taken up first by philosophers and only later by scientists, I am loath to predict that these results ? clear as they are ? will settle the question to everyone?s satisfaction.\"
A joke on the question :p
Back on topic: The crystal reflects the daylight. Therefore, the sky would be blue because that is the reflection, am I right?
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I believe i can clear that up....There is a natural form of light high atop the the stalactyte. As you may well know, light particles reflect blue light, i.e. the sun\'s light is what makes the the sky (in reality) blue! :)
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Makes sense that the sky would be rock.
1: Ykliam(however the hell you spell it) is underground.
2: You can stand on it :p (has been up there)
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Odd...I never thought about the blue sky until now. =)
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If the crystal reflects blue light, why isn\'t everything in the cave tinted blue? :P
But i guess it could just be some sort of mineral that turns blue due to radiation or from oxidizing. copper turns green when it oxidizes, so something HAS to turn blue...
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Originally posted by FlippySeal
I believe i can clear that up....There is a natural form of light high atop the the stalactyte. As you may well know, light particles reflect blue light, i.e. the sun\'s light is what makes the the sky (in reality) blue! :)
light particles? I\'ve never heard of such a thing... perhaps you meant water particles?
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molecules even
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He means gases which make up the atmosphere :). But guys.......... Azure sun is UNDER us..... So how can its light reach us? And how exactly tall are the each of the levels? Because, realisticly, there can\'t be a blue sky (unless there is blue rock) if the levels are too short.
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The Azure Sun is not under us, where did you get that idea? It sticks out of the surface of the planet...
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Wait, what? If we are on a stalagtite (or stalagmite the one that points down), and the sun is on the lowest level, wouldnt it be under us?
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The sun isn\'t on the lowest level...
(http://www.planeshift.it/pix/yliakum_map.jpg)
See the bright light at top?
\"...they discovered one quiet planet with a crystal column full of energy and mystery. Together, they explored the depths of the planet where the majestic obelisk has its roots, full to the brim and quivering with the azure energy.
Together, they reached the lower end of the column and discovering a rocky niche that contained the luminous and faceted extremity that now gives life-energy to Yliakum.... \"
Obviously its at the top...
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The crystal then extends up to the surface of the cold earth above, where the sun shines on the crystal f the surface which then relfects the light down through the Azure crystal and into the cave.
Only problem with that diagram is how the HELL is the sky blue when there\'s clearly no way a sky could possibly be contained within... then again, there isn\'t a distance referance so we really dont now the distance between the highest leven and the crystal/ceiling.
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Right, I think its just one of those things we need to accept...
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i guess the reason for the blue sky is cause of the crystal dont seem to be any logical explanation other than that ... maby its they way light travels ya know blue or is it purple being the faster colours with more penetrating power ? it explaines why the sea is blue .... (ok so its a little green in some parts but thats cause of agle )
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Ah, ok, thanks Icefalcon for clearing it up :)
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Dont take it to nerd level!! No one really cares! Just play the game and DONT try to make reality out of everything in the game.... its fantasy! Use your imagination... perhaps the atmosphere itself is different from ours and thats why it shows up blue. What do you want from me a poem???!!
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I\'m going to take it to a nerd level...So there.
The Reason the Sky is Blue
Light is made up of electromagnetic waves.
The distance between 2 crests in this wave is called the wavelength.
White light contains all the colors of the rainbow.
The amount of light scattered for any given colour depends on the wavelength of that colour.
All the colors in white light have different wavelengths.
Red light has the longest wavelength.
The wavelength of blue light is about half that of red light.
This difference in wavelength causes blue light to be scattered nearly ten times more than red light. Lord Rayleigh studied this phenomena in detail. It is caused the Tyndall effect or Rayleigh scattering.
Lord Rayleigh also calculated that even without smoke and dust in the atmosphere, the oxygen and nitrogen molecules would still cause the sky to appear blue because of scattering.
When blue light waves try to go straight through an oxygen and nitrogen molecules, its light is scattered in all directions because of this collision.
This scattered blue light is what makes the sky blue.
All other colors (with longer wavelengths than blue light) are scattered too.
Blue light\'s short wavelength causes it to be scattered the most.
(The shorther the wavelength of the color, the more that color gets scattered by the atmosphere)
Actually, violet has the shortest wavelength of all colors. Violet is scattered even more than blue light. However, our eyes are much more sensitive to see blue than violet, therefore we see the sky as blue.
Very little visible light is absorbed by the atmosphere.
The same would happen in Yliakum. I\'d imagine the distance between the Azure Sun and the people looking up at the sky is great enough to make the thing appear blue.
There you go. An explenation.
P.S. If you look to the sides of the sky dome you can see grey cracks which look like the cave\'s walls.
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Originally posted by FlippySeal
Dont take it to nerd level!! No one really cares! Just play the game and DONT try to make reality out of everything in the game.... its fantasy! Use your imagination... perhaps the atmosphere itself is different from ours and thats why it shows up blue. What do you want from me a poem???!!
Hey, it gives us something to do ok?!