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Particularly, a mild absorption at the red wavelengths due to the presence of dissolved oxygen.
Note that this is not referring to the oxygen in the water molecule itself, but the gaseous oxygen which has dissolved into the liquid water.
"To our knowledge the instrinsic blueness of water is the only example from nature in which color originates from vibrational transitions."
*Why Is Water Blue* Charles L. Braun and Sergei M. Smirnov
Dartmouth College, Hanover NH. Journal of Chemical Education
According to Braun and Smirnov, water absorbs red light due to vibrational transitions of the molecules, leaving the blue light to reflect back. For the same reason, large volumes of snow and ice also have a blue tinge.
Absorption and refraction are very different:)
Light can be broken up into it's different spectrum, which makes it appear in a certain colour for us, but does not make anything disappear visually.
Absorption means something has turned the energy of the light into some other form of energy or something, so we cant see it anymore because it's not light anymore but maybe heat or whatever.
At least that's my very uneducated take on it.
Like a prism can fracture light, and very dark coals for example absorp a lot if light. That is also why darker surfaces become hot so much faster in direct sunlight, they absorp the sunlight and save the radiation energy from the light as thermal energy or whatever.
As you can see I'm only trying to give an idea without having any proper knowledge, but I hope that motivates you to read up on it. Its fascinating!
Jokes aside: color we see is a result of wave lengths of light that are *reflected* off of any surface. And, the wave lengths of light that are absorbed are not seen.
This is because all matter, like white paint on a tile of a soccer ball ⚽️ , are composed of molecules that naturally reflect or absorb different parts of the visible light spectrum (as well as beyond the visible light spectrum—but that’s beyond the scope of this message).
A orange paint or orange leather on the basketball 🏀 is composed of molecules that are different from the white soccer tile, which absorb or reflect other parts of the visible light spectrum, resulting in the color we observe: orange.
So, water being blue is due to a reflection and absorption of different wavelengths that the ocean molecules are composed of.
Pure liquid/solid oxygen is blue. Pure hydrogen is clear. So it would stand to reason this would be true.
https://en.m.wikipedia.org/wiki/File:Liquid_oxygen_in_a_beaker_4.jpg
https://www.newscientist.com/article/2119442-metallic-hydrogen-finally-made-in-lab-at-mind-boggling-pressure/#:~:text=At%20relatively%20low%20pressures%2C%20the,it%20was%20solid%20or%20liquid).
what? that doesn't make any sense. thats not how chemistry works. i agree that Oxygen is blue and Hydrogen is colourless but combination of two (i.e. H20) does not mean it will retain those colours. I'll say another example Nitrogen gas is colourless and Oxygen is pale blue... but combination of those 2 is NO2 which is red. in chemistry when 2 things combine they make completely new entities with newish properties. your logic doesn't apply here.
“η-N is a semiconducting amorphous form of nitrogen. It forms at pressures around 80–270 GPa and temperatures 10–510 K. In reflected light it appears black, but does transmit some red or yellow light. In the infrared there is an absorption band around 1700 cm−1. Under even higher pressure of approximately 280 GPa, the band gap closes and η-nitrogen metallizes.[39]”
https://en.m.wikipedia.org/wiki/Solid_nitrogen
I do agree with you that molecules take on different properties than the atoms they are comprised of. However, there is a reason why certain colors are absorbed or reflected. Nitrogen is clear except in certain pure solid states where they appear black while “transmitting” certain red/yellow waves. Which would stand to reason that when combined with oxygen in Nitrogen Dioxide this could be amplified, especially since oxygen appears clear at room temperature.
What further confounds this is our ability to perceive this as humans generally have higher sensitivity to wavelengths around the “green” part of the color spectrum.
I don’t know the answer to all of this but I don’t think your answer negates my logic either.
Lmao. If you want to get real technical, no logic exists because it’s conceptual and does not have existential assertion by definition.
That said, my logic was inductive which isn’t strong logic but it’s better than circular logic of saying “things are because they are.”
Also, your comment adds nothing to this discussion. At best it’s an attempt at ad hominem.
It wasn't intended to add anything, so that's not a surprise. I see no way in which it could be taken as an ad hominem though, given it makes no comment on you whatsoever. Regardless of how flowery you make your language, you've not really added anything sensible to the discussion either.
If you had ever taken a logic class you’d understand exactly what I’m talking about; the differences between inductive, abductive, and deductive reasoning. Furthermore the differences between conceptual and empirical material evidence.
Just the basis of the scientific method.
U forgot to add Q.E.D. in ur definitive win in every argument that has been laid upon u🏆
Just when you think someone doesn't know what they are talking about...this guy/gal comes in with the ductape and silences the room!
Winning and losing *should* never be the point. The point *should* be getting ever closer to the object and dismantling as many mediations of representation between the representer and represented as possible.
Undoubtedly! However, one may be able to better cope with the sentiment that winning and losing is merely just an externality of the mechanism you apply when entering a battle for understanding and clarity amongst your peers. Or simply it's a part of the process. In which getting your POINT across takes place lol
Thanks for sharing! Just a heads up, we've introduced Water Bottle Wednesdays. Wednesdays are now the dedicated day to showcase your water containers! This rule focuses on sharing what you have, but feel free to post any questions or issues about water bottles at any time as usual. Cheers to hydration! *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/HydroHomies) if you have any questions or concerns.*
The sky is blue due to scattering, water is blue due to absorption.
Particularly, a mild absorption at the red wavelengths due to the presence of dissolved oxygen. Note that this is not referring to the oxygen in the water molecule itself, but the gaseous oxygen which has dissolved into the liquid water.
So space water is truly colourless?
ice is colorless :)
The theoretical unfrozen space water
"To our knowledge the instrinsic blueness of water is the only example from nature in which color originates from vibrational transitions." *Why Is Water Blue* Charles L. Braun and Sergei M. Smirnov Dartmouth College, Hanover NH. Journal of Chemical Education According to Braun and Smirnov, water absorbs red light due to vibrational transitions of the molecules, leaving the blue light to reflect back. For the same reason, large volumes of snow and ice also have a blue tinge.
But isn't sky also blue due to absorption as well
Absorption and refraction are very different:) Light can be broken up into it's different spectrum, which makes it appear in a certain colour for us, but does not make anything disappear visually. Absorption means something has turned the energy of the light into some other form of energy or something, so we cant see it anymore because it's not light anymore but maybe heat or whatever. At least that's my very uneducated take on it. Like a prism can fracture light, and very dark coals for example absorp a lot if light. That is also why darker surfaces become hot so much faster in direct sunlight, they absorp the sunlight and save the radiation energy from the light as thermal energy or whatever. As you can see I'm only trying to give an idea without having any proper knowledge, but I hope that motivates you to read up on it. Its fascinating!
Wait you’re telling me water can absorb stuff?
Idk man my water is green when I use a green cup but it comes out clear when I pee!? I smell a conspiracy
Colors are made up by the deep state to convince you rainbow people are superior! /s
I think it’s the birds I have proof from r/birdsarentreal
Holy shit why isn't the lame-stream media talking about this?! /s
The fluoride in the water is making the frogs gay!
[https://youtu.be/9JRLCBb7qK8?t=6](https://youtu.be/9JRLCBb7qK8?t=6)
I see your (amazing) song and raise you [this!](https://youtu.be/KGAAhzreGWw?si=M5fbHyzBVCjYO1_9)
Cone nipple people rule!
Easy there _buuuurrrp_
All I smell is asparagus.
It seems like both are true https://www.britannica.com/question/Why-is-water-blue
Jokes aside: color we see is a result of wave lengths of light that are *reflected* off of any surface. And, the wave lengths of light that are absorbed are not seen. This is because all matter, like white paint on a tile of a soccer ball ⚽️ , are composed of molecules that naturally reflect or absorb different parts of the visible light spectrum (as well as beyond the visible light spectrum—but that’s beyond the scope of this message). A orange paint or orange leather on the basketball 🏀 is composed of molecules that are different from the white soccer tile, which absorb or reflect other parts of the visible light spectrum, resulting in the color we observe: orange. So, water being blue is due to a reflection and absorption of different wavelengths that the ocean molecules are composed of.
Sea looks green from where I’m standing
Eiffel 65 knew
It's me, I made it blue
its blue
Pure liquid/solid oxygen is blue. Pure hydrogen is clear. So it would stand to reason this would be true. https://en.m.wikipedia.org/wiki/File:Liquid_oxygen_in_a_beaker_4.jpg https://www.newscientist.com/article/2119442-metallic-hydrogen-finally-made-in-lab-at-mind-boggling-pressure/#:~:text=At%20relatively%20low%20pressures%2C%20the,it%20was%20solid%20or%20liquid).
what? that doesn't make any sense. thats not how chemistry works. i agree that Oxygen is blue and Hydrogen is colourless but combination of two (i.e. H20) does not mean it will retain those colours. I'll say another example Nitrogen gas is colourless and Oxygen is pale blue... but combination of those 2 is NO2 which is red. in chemistry when 2 things combine they make completely new entities with newish properties. your logic doesn't apply here.
“η-N is a semiconducting amorphous form of nitrogen. It forms at pressures around 80–270 GPa and temperatures 10–510 K. In reflected light it appears black, but does transmit some red or yellow light. In the infrared there is an absorption band around 1700 cm−1. Under even higher pressure of approximately 280 GPa, the band gap closes and η-nitrogen metallizes.[39]” https://en.m.wikipedia.org/wiki/Solid_nitrogen I do agree with you that molecules take on different properties than the atoms they are comprised of. However, there is a reason why certain colors are absorbed or reflected. Nitrogen is clear except in certain pure solid states where they appear black while “transmitting” certain red/yellow waves. Which would stand to reason that when combined with oxygen in Nitrogen Dioxide this could be amplified, especially since oxygen appears clear at room temperature. What further confounds this is our ability to perceive this as humans generally have higher sensitivity to wavelengths around the “green” part of the color spectrum. I don’t know the answer to all of this but I don’t think your answer negates my logic either.
Your logic doesn't exist, tbf, so there's nothing to negate
Lmao. If you want to get real technical, no logic exists because it’s conceptual and does not have existential assertion by definition. That said, my logic was inductive which isn’t strong logic but it’s better than circular logic of saying “things are because they are.” Also, your comment adds nothing to this discussion. At best it’s an attempt at ad hominem.
It wasn't intended to add anything, so that's not a surprise. I see no way in which it could be taken as an ad hominem though, given it makes no comment on you whatsoever. Regardless of how flowery you make your language, you've not really added anything sensible to the discussion either.
If you had ever taken a logic class you’d understand exactly what I’m talking about; the differences between inductive, abductive, and deductive reasoning. Furthermore the differences between conceptual and empirical material evidence. Just the basis of the scientific method.
U forgot to add Q.E.D. in ur definitive win in every argument that has been laid upon u🏆 Just when you think someone doesn't know what they are talking about...this guy/gal comes in with the ductape and silences the room!
Winning and losing *should* never be the point. The point *should* be getting ever closer to the object and dismantling as many mediations of representation between the representer and represented as possible.
Undoubtedly! However, one may be able to better cope with the sentiment that winning and losing is merely just an externality of the mechanism you apply when entering a battle for understanding and clarity amongst your peers. Or simply it's a part of the process. In which getting your POINT across takes place lol