*Note:* You won't find colors like brown or grey on the chromaticity graph in this video because it's only a 2D slice of the _actual_ graph. Actual chromaticity requires a third axis, a lightness/darkness axis, to show the darker versions of colors. Brown is dark orange, grey is dark white, etc.
So, how does the "star color curve" vary in the 3-D chromaticity graph? Is it the same or do we get to see dimmer versions of stars too? Awesome video by the way.
So brown dwarf stars are actually orange with a low intensity. Then also that curve you embedded in this 2d slice of "all" perceptible colors, it must be only a 1d slice of some 2d surface that is derived form the spectrum emitted by a particular star.
I'll be the nerd clone today: I think that you oversimplified when you said we have red, green and blue color receptors, it's actually red, yellow and blue (although of course they see a range and only peak their sensibility in those frequencies), RGB is a convenient color generation using light but not what we see, and that's probably why we discern better the differences in the yellow-red narrow range than in the green-blue wider one. Edit: I was wrong: the actual peak frequencies of the three receptors (cones) are typically purple, green (or teal) and yellow. It's the yellow receptor which mostly allows us to discern red too.
Actually if you watch the sunset there's a certain point when the other colors of the star get blocked by the earth and you can see for a quick second the sun change to a green color, as its the most prominent color at that time its called the "green flash" look it up
Purple stars would be cool, but green would be fantastic, imagine being in a planet where everything looks like tones of green because of the star, would be awesome!
4:43 "almost all the light is red, so the star appears red" seems to be incoherent with a similar graph gearing towards the left when you're saying colors are mixing!...
Well, but green flame do exist! For example, burning triethyl borate results in green flames. So is there any chance that green stars exist, but for different reasons that just surface temperature? Besides, what about redshifting blue stars? Will that light become seen as green, or white back again?
I thought the reason we would not see purple stars is because purple was our brain's way of interpreting a body that admit's a lot of blue and red light, but little green. There is no "purple", it is kind of an optical illusion.
I think what you're doing is great but, for me, the comedy interrupts the flow of information which makes it disjointed and difficult to follow. That said, I can see how your style might appeal to others. "Science", which is really just "reality", is often perceived as too complex to understand by many who then immediately assume that they won't understand it. So a more light hearted approach is hardly without merit. Anyone helping to create a greater understanding of science and the world we inhabit is doing good work, so good work!
So in theory: if you filtered out the red and blue from an entire star in a giant Dyson sphere. You would form the most obvious “lighthouse” to other life in the galaxy... a green star?
I don't think so because aliens may see light in an entirely different way. There are not green stars, in part, because of the way humans interpret light. The chromaticity diagram is for humans, other animals and insects have different diagrams. They might experience something like a green star.
You learn this in College, specifically Physics and Astronomy related courses. However I definitely didn't learn this in high school, as I barely did anything with Logs in High School so calculating this would have been hard. But this guy did just prove that you can explain the concept to someone who doesn't know the underlying math.
@@Anankin12 Yeah you can explain the concept to someone but unless they have the math background good luck trying to show the proof / how the theory actually works the moment Calculus or Linear Algebre get involved xD
Congrats on the sliding emission curve with higher surface temperatures through the visible spectrum, it makes things more ... eh ... 'visible'. Thanks to include also the link to human vision spectral sensitivity.
Math has the opposite problem -- so many of the names sound pretty cool, but are actually misleading. e.g. "Imaginary" numbers are no more or less imaginary than "real" numbers.
If you look at the sun in space outside of the vast majority of the Earth's atmosphere, you would see it as white. (Then you would regret that you weren't wearing super shielding sun glasses because now you have irreversible eye damage because the sun burned a hole in the center of your retina going through your entire eyeball.)
If you look at a rainbow or through a prism, you can see the separated colors from the sun and judge for yourself. Too bad our eyes aren't sensitive enough to see the rainbows from the stars.
you're simply amazing, I've finally understood the monochromatic curve and the chromaticity graph thanks to your creative way of explaining stuff. Thank you
The comprehensive recap at the end was a nice touch. Temperature is such an interesting concept, and many things that seem mysterious suddenly make sense when the distribution of kinetic energy is considered.
@@thomasraahauge5231 Being less massive than it needs to be to reach self sustained fusion and having the maximum peak in infrared radiation. So it is really dark red.
Mr Lucid: "What did you expect?" Mr Einstein: "I have deep faith that the principle of the universe will be beautiful and simple." Mr Lucid: "The universe to be simple!? Pff!" :D
Emergent behavior is awesome and/or headache inducing. The basic principles don't have to be complicated for the universe to be an incomprehensible mess.
Nick, great job adding the 20-second summary at the end. This is an improvement on your normal way of structuring scripts, not REALLY reaching a conclusion (because physics doesn't generally allow for cleanly-delimited conclusions, and I like that you don't pretend that it does), just reaching the end of what you're going to explain, and then going straight into "So, what do you think..." . The summary wrap-up statement wouldn't be nearly as necessary if you were just doing the regular surface-level explanations that most other science channels do, but since you're ACTUALLY trying to get people to develop new heuristics in most of your videos, and not just put a check in a box for "well, yep, I did a video about that", the summary is a great way to put a bow on things.
Between Science Asylum, PBS spacetime and Fermilab, I've learned more than I ever did in school, but most of my teachers would have taught like this if they weren't constrained by the school rules and curriculum and they sometimes did when they could. So i'm hoping these channels are around when my kids grow up so I can show them. Great channel, keep up the great work, Nick.
I'm a teacher, and I'm always so grateful to hear that someone from outside the profession understands that there are chains that the system shackles us with that are stronger than we are, no matter how hard we fight - and please believe, we never stop fighting for our students!
You can only teach so much at school. If you want to learn literally everyhing there is or more than that go in depth to understand the stuff and not just learn "facts" and simple concepts, you can do that in your free time or go to University and learn the subject that interests you. Even at University you eventually specialize in something after learning some general foundation. And let me tell you, even most university students bitch about why they have to learn stuff that they'll never use. Many students bitch why they have to take Math, when all they want to do later is e.g. become a biologist. Don't pretend like you want to learn everyhing. You might be interested in science, but others are not. You might like to learn more about atoms, while others would rather learn more about fashion. The goal of school is to give you a foundation to expand on, that allows you to learn for yourself. If you are more interested in something and want to go more in depth, that what University is for. Be honest, if the school would not force you to take certain subjects, you wouldn't bother learning about them. You might that stuff, but it is part of a general education. Others hate it that they have to take science classes. You have no clue how much stuff there is that you could learn. Most students are already sick of the stuff that is taught in school. You can't expect school to teach you everything, nor would you want school to teach you everything. Be honest, most of the stuff you'd find boring. And even if you didn't find something boring, you might be overwhelmed by it. If you think school doesn't teach you alot and it is too easy, you can just jump classes any time you want. Get your highschool diploma at age 14 or younger and move on to college.
@@maythesciencebewithyou No, every university force you to learn so leftist ideology, like gender studies 101. While what you said may be right 20 years ago. IT is not like that even in BASIC bachelor degree course, after all.
Why violet is on the edge while it's after the limit of our blue sensor? It cannot be a mixed color from other green and red senors since more violet means less green and red response (it's not a monochromatic color). In RGB code violet corresponds to a blue with some red, but violet should be a dark blue according the eye cone cells response. In HSL code the hue is a loop, blue and red are smoothly connected with the violet. I really want to understand!
The red sensor actually has a second bump/sensitivity on the violet end of the visible spectrum. It doesn't get talked about much because it's smaller than the main peak, but it's there.
@@ScienceAsylum : I discussed with a PhD specialized in light and laser and he has another explanation. The bump exists but it's very small and it might be the absorption curve and not the real sensibility response curve. The answer might be that purple color sensation is the real response of the "blue" cone, but when the blue cone is at its max response, the green et red cones are also existed to give the blue sensation. This happen especially with the blue cone because its response is far from other cones and it can be excited alone (purple at 400nm). It would be interesting to get the color of each cones taken separately, that's not the RGB primary color we use. For some reason a mix of blue and red gives the purple/magenta color so that a screen can reproduce all colors of the chromacity triangle. Can I have your opinion?
@@ScienceAsylum That's a common misconception. Unfortunately, that graph with the red bump in violet-blue is actually from a color matching graph, and not the actual cone sensitivity graphs. The reason violet appears to contain red still eludes me to this day! I've searched online for an answer, and I'm not sure there is an absolute known answer.
Magnificent video Nick. You are constantly wanting to explain every single detail of every physical phenomena to make it less abstract and accessible for many people. And this is rare in education, thats why i admire your work A LOT
this was easily the best explaination anyone has given on this subject, i havent heard anyone else make it so easy to understand and grasp. very nice i like the video
Im no expert but I think youre looking from the wrong perspective. In our Time scale the two objects are still moving. And as such they can do all the stuff they want to. Like spinning, deforming, and merging. (Seriously with the infinite time dilatation thing they couldnt even do that properly, because they move to the middle of the black hole faster than the speed of light. This just dont work - as far as we know.) In the end its a singularity and we dont know whats physically inside a black hole. All the space and time switchting inside a black hole is just because our mathematics from outside a black hole say so. We dont know if there are other factors for the formulas and how they look like.
The same reason a photon, which experiences no "subjective" time nor space at all (infinite time dilation as well), interacts with electrons and such, including our eyes, in less dilated space-time? I don't understand how exactly either but I think I understand it is much more common and general than black holes only.
Because the event horizon is just a bounds. It's vaguely true that within a black hole you'd experience no time, but that's a different situation than the bounds of the black hole. From within, you would never experience the collision because the collision never reaches you. The collision DOES reach the bounds, though, which is the event horizon. If you were in the black hole, you'd experience the collision after an infinite amount of time, but that's only true from within. Einstein said that there's no preferential reference frame, so it's all about what the observer sees.
@@linksfood The thing is, from our perspective, nothing ever crosses event horizon in the first place. That's why it's called an event horizon. Those events never take place in... uhm... our universe. I'm no expert (far from it), but if that's the case, how the two bounds of never happening stuff can even merge? How can it suck matter (or energy, and yes, I'm aware it doesn't suck really) if that matter (or energy) never enters the black hole from our point of view. Instead of my pathetic rumbling, better check this video ua-cam.com/video/vNaEBbFbvcY/v-deo.html But a video on the topic would be a blast.
-He talks as if he's talking to a child. But I like it because I can understand it all. -Man, he talks like that to an adult like you and me cause he is crazy. -Oh! Poor soul. -Man, we're crazy too! -Whaaaaat? -We're in a ASYLUM! -NO SH*T!
@Matthew H Yep, especially cyan. On older screens, cyan looks like light blue. Real cyan is much richer than that! It looks like a beautiful mix of blue and green. It's unfortunate that we're robbed of such a gorgeous color by our inadequate screens.
@@ewthmatth Look up screens with a wide color gamut. What kind of phone do you have? Newer phones are starting to have wider gamuts. My phone, for example, shows cyan much better than my old phone, but it's still not as good as real spectral cyan.
Wow, now I know where the temperature color of the light bulbs comes from. That's why I love 6000K bulbs. They are white and not yellow like the 3000K ones.
There’s a lot of things that blow my mind, but this really blew my mind. I love light and color science, it’s a much deeper rabbit hole than I ever expected. I need more!
@Science Asylum Thank you for doing a video including color theory. It's one of my favorite things! Also, thank you for saying the sun is white. As a color science enthusiast, it's infuriating hearing people claim the sun is yellow. It's only yellow when it's very low in the sky.
I think it would be neat to see purple and green stars. I made some in Photoshop a few years back. They're a bit crude, but, kinda cool to look at. This was also done under the assumption that stars came in every color at the time.
I'm sure If you ask a Mantis shrimp with 12 vision receptors it would say there's green purple and many other different colors, Compared to humans who only has 3 vision receptors, Real science.
RGB means we identify the mix of additive light colors needed to generate the color in question. CMYK means we identify the mix of pigments, which are subtractive because pigments absorb color.
Thank you, but a few nitpicks: 1) It is the photosphere of a star that emits visible light, not its chromosphere. 2) The Sun's blackbody curve peaks in the blue-green part of the spectrum. But because of the shape of the blackbody curve, with its long slope on the right (red) side, the Sun still emits about equal amounts of red and blue light even though its blackbody curve peaks in the blue-green part of the spectrum. Like you said, equal amounts of red and blue light (and yellow and green) equals white light. Thank you for stating clearly that the Sun is white!!!
Same is true for metal heating in blacksmithing. Though past white hot glow it often melts! You can catch more color in the metal at lower temps, but turquoise is as close to green as I have seen in temper colors.
Pretty neat explanation of what happens with the mixture of colored light. I set up and executed professional outdoor aerial pyrotechnics displays for 20 years and during a finale, if I sent many multicolor shells, the resulting effect in the sky would be clusters of white with colors at the edges. I never knew what to call it but would say the colors wash out to white.
What if you had a cool star that had an extremely high amount of something like copper which emits light in a very specific wavelength? Would that shift the colour of the star far enough off the temperature curve to to visibly change its colour? Or would the blackbody radiation still be brighter than whatever emission lines the dominant element produced? Also, this would probably indicate that someone had artificially created a particularly heavy star for some reason (maybe they just wanted to try it out for a youtube video).
Very informative! I Subscribed~ I remember playing Star Control II and learning what star colours went from coldest to hottest, but I don't remember what the order was and if that was factual.
3:22 According to that graph, our brain never gets only signals from the green receptors. Now I wonder how the brain would interpret it if we could somehow either directly stimulate the "green" nerves or suppress the other two.
@@frogz You mean looking directly into the laser to burn out the receptors for that color? I don't know if the damage of the laser is selective like that. If it is, it's still a very drastic measure. I'd prefer a non permanent suppression of receptors.
The world needs to make lots of clones of you so that you can be *everybody's* science or physics teacher. With you teaching science and 3blue1brown teaching math, school would be a WHOLE lot more enjoyable and understandable. Thanks for what you do.
how long exactly _is_ that path between los angeles & new york? if 16,777,216 colors exist _inside_ the visible spectrum, I think I can calculate the amount of colors in the universe saying that 16,777,216 colors is 100 nanometers
I haven't seen a video like this on UA-cam. Thanks for the very clear and will presented explanation! I always wondered about this exact question. I just never really looked into it! Glad to know now :) Edit: why was I not already subscribed? Gonna be binging your videos soon haha
Next time people try to convince me that we don't percieve color "chords" (mixes of several colors) the same way as sound/music chords (mixes of several notes/tones/frequencies), I'll send them this video with a comment "nonsense".
*Note:* You won't find colors like brown or grey on the chromaticity graph in this video because it's only a 2D slice of the _actual_ graph. Actual chromaticity requires a third axis, a lightness/darkness axis, to show the darker versions of colors. Brown is dark orange, grey is dark white, etc.
So, how does the "star color curve" vary in the 3-D chromaticity graph? Is it the same or do we get to see dimmer versions of stars too?
Awesome video by the way.
So brown dwarf stars are actually orange with a low intensity. Then also that curve you embedded in this 2d slice of "all" perceptible colors, it must be only a 1d slice of some 2d surface that is derived form the spectrum emitted by a particular star.
I'll be the nerd clone today: I think that you oversimplified when you said we have red, green and blue color receptors, it's actually red, yellow and blue (although of course they see a range and only peak their sensibility in those frequencies), RGB is a convenient color generation using light but not what we see, and that's probably why we discern better the differences in the yellow-red narrow range than in the green-blue wider one.
Edit: I was wrong: the actual peak frequencies of the three receptors (cones) are typically purple, green (or teal) and yellow. It's the yellow receptor which mostly allows us to discern red too.
Bei Nacht sind alle Katzen grau
"Grey is dark white." - ...Holy fuck.
Puting the EM spectrum into scale blew my mind.
I thought I understood that but obviously did not
Great explanation. perfect visuals good job bud.
I don't know why you have less views and subscribers than other educational channels. Your videos are really awesome.
Simply awesome 😎. When I was a child my mind was full of questions something you describe in the videos. ❤️❤️❤️
"See a image of jiggling Copper"
*laughs in portuguese*
Actually if you watch the sunset there's a certain point when the other colors of the star get blocked by the earth and you can see for a quick second the sun change to a green color, as its the most prominent color at that time its called the "green flash" look it up
Purple stars would be cool, but green would be fantastic, imagine being in a planet where everything looks like tones of green because of the star, would be awesome!
plants: too much green from the sun, let's reflect it
Or else they would over-heat and wither. True story.
"No green suns"
Laughs in homestuck
This is awesome. My favorite color is purple, and my fiancee loves green.
Wouldn’t the same thing go for yellow? They’re both equally in the middle.
4:43 "almost all the light is red, so the star appears red" seems to be incoherent with a similar graph gearing towards the left when you're saying colors are mixing!...
So. There are maybe lots of starts we can't see during night because our limited spectrum? Are there stars that emit majority of uv or ir ?
Well, but green flame do exist! For example, burning triethyl borate results in green flames. So is there any chance that green stars exist, but for different reasons that just surface temperature?
Besides, what about redshifting blue stars? Will that light become seen as green, or white back again?
Gotta love that "black body curve". 😁😋
1:07 Look at white star (F type Star) there's a secret sign in there.
I thought the reason we would not see purple stars is because purple was our brain's way of interpreting a body that admit's a lot of blue and red light, but little green. There is no "purple", it is kind of an optical illusion.
Not all purple is a mixture of colors. Violet, a type of purple, is a single wavelength. #IWillDieOnThisHill
I suppose this means that our own sun is a green star, but we can't see it since it looks white to us.
I think what you're doing is great but, for me, the comedy interrupts the flow of information which makes it disjointed and difficult to follow.
That said, I can see how your style might appeal to others. "Science", which is really just "reality", is often perceived as too complex to understand by many who then immediately assume that they won't understand it. So a more light hearted approach is hardly without merit.
Anyone helping to create a greater understanding of science and the world we inhabit is doing good work, so good work!
Okay now this makes me curious so purple stars are not a thing but what about Violet Stars is that a thing?
So in theory: if you filtered out the red and blue from an entire star in a giant Dyson sphere. You would form the most obvious “lighthouse” to other life in the galaxy... a green star?
Cool idea. Copyright: You?
That's a really cool idea.
I don't think so because aliens may see light in an entirely different way. There are not green stars, in part, because of the way humans interpret light. The chromaticity diagram is for humans, other animals and insects have different diagrams. They might experience something like a green star.
any filtering away from black-body curve would be an obvious beacon
@@gregoryfrancis7389 it will still be different for them and they will notice, whatever color it is on their spectrum
When you don’t think you’re going to learn anything and end up learning everything.
I also came here expecting to learn nothing. Turns out I already knew basically everything here.
It's like I'm enlightened or en- coloured
Exactly
I don’t think I retain much. These science shows are entertainment for me.
That’s kinda what this channel is about…
How to find out that you're dreaming:
Normal person: Look at clock or pinch themselves.
Crazies: Try to find a green or purple star with telescope.
Good idea to trigger lucidity!
Okay, thanks.. xD
@@nrdkraft That's true. Just do something deliberate.. well.. "just".. xD
You know WHAT. In a dream once the sun was purple. Should've known
> Normal person: Look at clock or pinch themselves.
Me: look at own hand.
Tip: don't do it. It will look horrifying.
If homestuck has taught me anything, is that a green sun is bad news.
Spike Link lmao HS is literally everywhere i swear
Good thing they don't exist. Ness is NOT Sans btw.
Boi
So is green and purple cheese . . .
“Why are there no green stars?”
Me, an intellectual: *laughs in super mario galaxy*
One of the best games every made... incredibly misleading astronomy and physics.
No purple stars...? *Cries in Wah*
We just need to visit 120 star systems, then green stars will begin to appear throughout the galaxy
"why are there no _cube_ stars?"
me: *_laughs in minecraft space mod_*
@@ScienceAsylum I have to wonder, how many people actually know that "galaxy" and "star system" are different things?
This is the type of info you’ll never learn in school. I’m thankful for this channel.
They taught this to us in high school in the 90's. But I learned it first in a boyscouts astronomy class when I was about 12.
You learn this in College, specifically Physics and Astronomy related courses. However I definitely didn't learn this in high school, as I barely did anything with Logs in High School so calculating this would have been hard.
But this guy did just prove that you can explain the concept to someone who doesn't know the underlying math.
@@occultninja4 yeah, they didn't teach us the math or anything. They just explained it much like this guy did.
Actually it is taught somewhere. Uni or college.
Why? Because the justification for all this is very complicated.
@@Anankin12 Yeah you can explain the concept to someone but unless they have the math background good luck trying to show the proof / how the theory actually works the moment Calculus or Linear Algebre get involved xD
"Those colors are thermodynamically inaccurate!"
I don't why, but I love this quote.
I love when I see a simple question like this that never would have even crossed my mind
Hi Dotson :)
I love how all the red stars shown in the video have sunglasses, because they're the "coolest" ones
black ones are even COOLER
Y types are brown dwarf and it’s black
Congrats on the sliding emission curve with higher surface temperatures through the visible spectrum, it makes things more ... eh ... 'visible'. Thanks to include also the link to human vision spectral sensitivity.
I've often seen green and purple stars, but only when I've banged my head hard enough.
“Science names: they are boring, but descriptive” 🤣
And then I started learning about the physics of electromagnetic radiation and the prof threw conventional current notation our way... :\
Yeah flavour
Math has the opposite problem -- so many of the names sound pretty cool, but are actually misleading. e.g. "Imaginary" numbers are no more or less imaginary than "real" numbers.
“And yes the sun is white”
Me:my whole life is a lie....
Don't worry, the Earth is filtering the sun's light so it still looks yellow for us!
@@zanderoneil3405 so in theory is green.... But actually no..?
If you look at the sun in space outside of the vast majority of the Earth's atmosphere, you would see it as white. (Then you would regret that you weren't wearing super shielding sun glasses because now you have irreversible eye damage because the sun burned a hole in the center of your retina going through your entire eyeball.)
If you look at a rainbow or through a prism, you can see the separated colors from the sun and judge for yourself.
Too bad our eyes aren't sensitive enough to see the rainbows from the stars.
@@Will-be-free not with that attitude *munches drugs*
you're simply amazing, I've finally understood the monochromatic curve and the chromaticity graph thanks to your creative way of explaining stuff. Thank you
You’re welcome! 🤓
The comprehensive recap at the end was a nice touch. Temperature is such an interesting concept, and many things that seem mysterious suddenly make sense when the distribution of kinetic energy is considered.
For this video you get a Gold star sir.
What does it take to get a brown star?
@@thomasraahauge5231 Being less massive than it needs to be to reach self sustained fusion and having the maximum peak in infrared radiation. So it is really dark red.
@@Aliasbaba41 I was trying to be funny - a brown star _COULD_ be a poop-coloured "reward" for the less than well achieving student . . .
You are seriously one of the absolute best science teachers I've seen. Please don't stop doing what you're doing.
I love the questions you can come up with. I have never thought about why there are no green stars :)
Mr Lucid: "What did you expect?"
Mr Einstein: "I have deep faith that the principle of the universe will be beautiful and simple."
Mr Lucid: "The universe to be simple!? Pff!" :D
Emergent behavior is awesome and/or headache inducing. The basic principles don't have to be complicated for the universe to be an incomprehensible mess.
@@benjaminbuchan6497 I just ignored the fact that those quotes refer to different things, hehe. It's more fun to be a lunatic sometimes =)
a complex universe based on several simple rules!
Y'all seem to have sold your humor to afford the tuition fee? :P
vertex rikers I love science jokes lol
Because Green and Purple are not creative colors
Oh no 😂
I completely forgot about that lol
Shut. We don't talk about that.
I wonder how many people got that joke.
@@Lucky10279 let's never get creative again.
Nick, great job adding the 20-second summary at the end. This is an improvement on your normal way of structuring scripts, not REALLY reaching a conclusion (because physics doesn't generally allow for cleanly-delimited conclusions, and I like that you don't pretend that it does), just reaching the end of what you're going to explain, and then going straight into "So, what do you think..." . The summary wrap-up statement wouldn't be nearly as necessary if you were just doing the regular surface-level explanations that most other science channels do, but since you're ACTUALLY trying to get people to develop new heuristics in most of your videos, and not just put a check in a box for "well, yep, I did a video about that", the summary is a great way to put a bow on things.
So is programming "codes" with words gestures colors and 5 Gee
Between Science Asylum, PBS spacetime and Fermilab, I've learned more than I ever did in school, but most of my teachers would have taught like this if they weren't constrained by the school rules and curriculum and they sometimes did when they could. So i'm hoping these channels are around when my kids grow up so I can show them. Great channel, keep up the great work, Nick.
The "constrained by school rules" comment is too accurate.
I'm a teacher, and I'm always so grateful to hear that someone from outside the profession understands that there are chains that the system shackles us with that are stronger than we are, no matter how hard we fight - and please believe, we never stop fighting for our students!
You can only teach so much at school. If you want to learn literally everyhing there is or more than that go in depth to understand the stuff and not just learn "facts" and simple concepts, you can do that in your free time or go to University and learn the subject that interests you. Even at University you eventually specialize in something after learning some general foundation. And let me tell you, even most university students bitch about why they have to learn stuff that they'll never use. Many students bitch why they have to take Math, when all they want to do later is e.g. become a biologist. Don't pretend like you want to learn everyhing. You might be interested in science, but others are not. You might like to learn more about atoms, while others would rather learn more about fashion.
The goal of school is to give you a foundation to expand on, that allows you to learn for yourself. If you are more interested in something and want to go more in depth, that what University is for. Be honest, if the school would not force you to take certain subjects, you wouldn't bother learning about them. You might that stuff, but it is part of a general education. Others hate it that they have to take science classes.
You have no clue how much stuff there is that you could learn. Most students are already sick of the stuff that is taught in school. You can't expect school to teach you everything, nor would you want school to teach you everything. Be honest, most of the stuff you'd find boring. And even if you didn't find something boring, you might be overwhelmed by it. If you think school doesn't teach you alot and it is too easy, you can just jump classes any time you want. Get your highschool diploma at age 14 or younger and move on to college.
@@maythesciencebewithyou No, every university force you to learn so leftist ideology, like gender studies 101. While what you said may be right 20 years ago. IT is not like that even in BASIC bachelor degree course, after all.
@@MrHkl8324 this man has never stepped foot in a university
Why violet is on the edge while it's after the limit of our blue sensor? It cannot be a mixed color from other green and red senors since more violet means less green and red response (it's not a monochromatic color).
In RGB code violet corresponds to a blue with some red, but violet should be a dark blue according the eye cone cells response.
In HSL code the hue is a loop, blue and red are smoothly connected with the violet.
I really want to understand!
The red sensor actually has a second bump/sensitivity on the violet end of the visible spectrum. It doesn't get talked about much because it's smaller than the main peak, but it's there.
@@ScienceAsylum For true? Never heard about that, it's really surprising, thanks!
So it's not a coincidence if the color sensation "after the blue" looks like a blue + red mix, soo interesting!
@@ScienceAsylum : I discussed with a PhD specialized in light and laser and he has another explanation. The bump exists but it's very small and it might be the absorption curve and not the real sensibility response curve.
The answer might be that purple color sensation is the real response of the "blue" cone, but when the blue cone is at its max response, the green et red cones are also existed to give the blue sensation. This happen especially with the blue cone because its response is far from other cones and it can be excited alone (purple at 400nm).
It would be interesting to get the color of each cones taken separately, that's not the RGB primary color we use.
For some reason a mix of blue and red gives the purple/magenta color so that a screen can reproduce all colors of the chromacity triangle.
Can I have your opinion?
@@ScienceAsylum That's a common misconception. Unfortunately, that graph with the red bump in violet-blue is actually from a color matching graph, and not the actual cone sensitivity graphs. The reason violet appears to contain red still eludes me to this day! I've searched online for an answer, and I'm not sure there is an absolute known answer.
Thanks for answering this question pretty simply. You'd be surprised how many college professors couldn't really do this like you did.
Whoa, this is a real red letter day for me - I understood this one on the first viewing! Thanks for continuing to enlighten me, Nick!
This channel, Stated Clearly, and 3blue1brown are my favorite STEM channels
That's a great list to be included on 😊
try technology connections, he made a similar video on the 'color' brown
Mine too
3 blue 1 brown is high level. I like arvin ash and learn engineering as well. Anything brilliant sponsors!
Magnificent video Nick. You are constantly wanting to explain every single detail of every physical phenomena to make it less abstract and accessible for many people. And this is rare in education, thats why i admire your work A LOT
this was easily the best explaination anyone has given on this subject, i havent heard anyone else make it so easy to understand and grasp. very nice i like the video
Another great video
Explaining complex concepts in simple terms like no one can
Something I never really thought about before, but now I know. And knowing is half the battle.
yeah but what's the other half..?
@@rillloudmother Cold Fusion !
@@monad_tcp for real? I got (bs&t^-r) /n...
Half of knowing is the battle!
How can 2 event horizons with infinite time dilation orbit each other and merge dammit!!!
That's an unrelated question, but I comment in order to receive a notification for the answer.
Im no expert but I think youre looking from the wrong perspective. In our Time scale the two objects are still moving. And as such they can do all the stuff they want to. Like spinning, deforming, and merging. (Seriously with the infinite time dilatation thing they couldnt even do that properly, because they move to the middle of the black hole faster than the speed of light. This just dont work - as far as we know.) In the end its a singularity and we dont know whats physically inside a black hole. All the space and time switchting inside a black hole is just because our mathematics from outside a black hole say so. We dont know if there are other factors for the formulas and how they look like.
The same reason a photon, which experiences no "subjective" time nor space at all (infinite time dilation as well), interacts with electrons and such, including our eyes, in less dilated space-time?
I don't understand how exactly either but I think I understand it is much more common and general than black holes only.
Because the event horizon is just a bounds. It's vaguely true that within a black hole you'd experience no time, but that's a different situation than the bounds of the black hole. From within, you would never experience the collision because the collision never reaches you. The collision DOES reach the bounds, though, which is the event horizon. If you were in the black hole, you'd experience the collision after an infinite amount of time, but that's only true from within. Einstein said that there's no preferential reference frame, so it's all about what the observer sees.
@@linksfood The thing is, from our perspective, nothing ever crosses event horizon in the first place. That's why it's called an event horizon. Those events never take place in... uhm... our universe. I'm no expert (far from it), but if that's the case, how the two bounds of never happening stuff can even merge? How can it suck matter (or energy, and yes, I'm aware it doesn't suck really) if that matter (or energy) never enters the black hole from our point of view.
Instead of my pathetic rumbling, better check this video ua-cam.com/video/vNaEBbFbvcY/v-deo.html
But a video on the topic would be a blast.
because we're nothin but a big bowl of lucky charms, and god ate the green and purple marshmallows first.
-He talks as if he's talking to a child. But I like it because I can understand it all.
-Man, he talks like that to an adult like you and me cause he is crazy.
-Oh! Poor soul.
-Man, we're crazy too!
-Whaaaaat?
-We're in a ASYLUM!
-NO SH*T!
"your RBG screen is faking it"
OMG. My life (lived entirely in front of my computer screen) IS A LIE
if it would be a difference seeing 0.00000001% more of the light spectrum. I want better eye ! put more rods in that crap bit
@Matthew H Yep, especially cyan. On older screens, cyan looks like light blue. Real cyan is much richer than that! It looks like a beautiful mix of blue and green. It's unfortunate that we're robbed of such a gorgeous color by our inadequate screens.
Matthew H Don't try to say that you did not see it.
@@DANGJOS so what newer screens show good cyan? A specific type of display?
@@ewthmatth Look up screens with a wide color gamut. What kind of phone do you have? Newer phones are starting to have wider gamuts. My phone, for example, shows cyan much better than my old phone, but it's still not as good as real spectral cyan.
Wow, now I know where the temperature color of the light bulbs comes from.
That's why I love 6000K bulbs. They are white and not yellow like the 3000K ones.
Yep!
God i love this channel
Eyes closed, hands shaking, it's "anyway" time.
When that happens you know something awesome's about to be learnt.
Imma keep looking for that Mace Windu Star
You deserve 4M!! Subscribers literally.your work is worth of Saluting
There’s a lot of things that blow my mind, but this really blew my mind. I love light and color science, it’s a much deeper rabbit hole than I ever expected. I need more!
Pink stars... super Mario shit
thank you for bandaging my brain with the missing info.
You're welcome 😊
@Science Asylum Thank you for doing a video including color theory. It's one of my favorite things! Also, thank you for saying the sun is white. As a color science enthusiast, it's infuriating hearing people claim the sun is yellow. It's only yellow when it's very low in the sky.
This was one of the most brilliant videos I have ever watched
I totally understood this fascinating topic
thank you
You're welcome 😊
So this was like, actually the best explanation for this subject I’ve seen yet.
As in, I actually get it lol.
Did anyone else realize that the white star had the Science Asylum icon on it? You can see it if you look at the screen from the side.
I think it would be neat to see purple and green stars.
I made some in Photoshop a few years back. They're a bit crude, but, kinda cool to look at.
This was also done under the assumption that stars came in every color at the time.
Your presentation is incredible.
I have known everything you explained.
But I have never known anything about it LIKE THAT.
I'm sure If you ask a Mantis shrimp with 12 vision receptors it would say there's green purple and many other different colors,
Compared to humans who only has 3 vision receptors,
Real science.
And then there's the difference between RGB and CMYK and that there's no actual frequency associated with the magenta color as we perceive it.
RGB means we identify the mix of additive light colors needed to generate the color in question. CMYK means we identify the mix of pigments, which are subtractive because pigments absorb color.
Today I learned that to be purple a star has to be infinitely hot and that our sun could actually be emitting more green than any other color?
@Just Looking Don't you mess with the artist formerly known as Prince! 🟣🟣🟣🟣🟣🟣😁😁😁😁😁😁
Nah. Infinite temperature color is still blue. You can make infinite temperature even hotter, but it would still blue
Crazy. I literally just asked this very question in my head when telling my kids about star colors this week. Thanks for reading my mind. 😁
Glad I could help 😊
Thank you, but a few nitpicks: 1) It is the photosphere of a star that emits visible light, not its chromosphere. 2) The Sun's blackbody curve peaks in the blue-green part of the spectrum. But because of the shape of the blackbody curve, with its long slope on the right (red) side, the Sun still emits about equal amounts of red and blue light even though its blackbody curve peaks in the blue-green part of the spectrum. Like you said, equal amounts of red and blue light (and yellow and green) equals white light. Thank you for stating clearly that the Sun is white!!!
Will a gamma ray burst be slighlty violet? Since it has a ton more gamma radiation than reddish one?
"stars dont get anywhere near infinite surface temperature" is gold
Great, great, great! Thank you so much!
You are very welcome! 🤓
Why are there no purple stars? Because, sadly, the universe just isn't that cool...er, i mean hot.
I can't believe two hours ago i was wondering, why no new video has come for so long and here you are😊
Same is true for metal heating in blacksmithing. Though past white hot glow it often melts! You can catch more color in the metal at lower temps, but turquoise is as close to green as I have seen in temper colors.
yay nerd clone was in this one. I missed that dude.
Pretty neat explanation of what happens with the mixture of colored light. I set up and executed professional outdoor aerial pyrotechnics displays for 20 years and during a finale, if I sent many multicolor shells, the resulting effect in the sky would be clusters of white with colors at the edges. I never knew what to call it but would say the colors wash out to white.
What if you had a cool star that had an extremely high amount of something like copper which emits light in a very specific wavelength? Would that shift the colour of the star far enough off the temperature curve to to visibly change its colour? Or would the blackbody radiation still be brighter than whatever emission lines the dominant element produced? Also, this would probably indicate that someone had artificially created a particularly heavy star for some reason (maybe they just wanted to try it out for a youtube video).
Very informative! I Subscribed~
I remember playing Star Control II and learning what star colours went from coldest to hottest, but I don't remember what the order was and if that was factual.
You're a purple star in my heart 💜
3:22 According to that graph, our brain never gets only signals from the green receptors. Now I wonder how the brain would interpret it if we could somehow either directly stimulate the "green" nerves or suppress the other two.
@Paul Paulson I'm not sure what you would see. Color works on an opponency process, and it isn't as simple as people think.
got a green led/laser? try it yourself, view the world in monochromatic, add filters to eyes for bonus effect
@@frogz You mean looking directly into the laser to burn out the receptors for that color? I don't know if the damage of the laser is selective like that.
If it is, it's still a very drastic measure. I'd prefer a non permanent suppression of receptors.
0:46 That's one *cool* star
I believe the temperatures on sink faucets are labeled that way because the human body turns blue when cold and red when hot
Or just ice and hot metal. There are a lot of examples you could use.
always that pink floyd shirt :))
dont change it😅
Here I am... In Brazil... On my lunch time, eating an hamburger and learning about star colors in a language not native to me.
The world needs to make lots of clones of you so that you can be *everybody's* science or physics teacher. With you teaching science and 3blue1brown teaching math, school would be a WHOLE lot more enjoyable and understandable. Thanks for what you do.
The 12yo me had no trouble relating "wiggles and jiggles" to "hot".
Very Feynman-esque!
I’ve never learned so much in 9 minutes before. I’m in love with this channel
7:00 "only"😂😂😂
Laugh I mean, it's still closer to 0 than it is to infinity
@@pleaseenteraname4824 it sounds like its closer to infinity tho
A googol is closer to 0 than to infinity, so that doesn't really have much meaning.
how long exactly _is_ that path between los angeles & new york?
if 16,777,216 colors exist _inside_ the visible spectrum, I think I can calculate the amount of colors in the universe saying that 16,777,216 colors is 100 nanometers
I just realized why this channel is called "The Science Asylum" It's cause you keep seeing and talking to yourself. Clever.
I haven't seen a video like this on UA-cam. Thanks for the very clear and will presented explanation! I always wondered about this exact question. I just never really looked into it! Glad to know now :)
Edit: why was I not already subscribed? Gonna be binging your videos soon haha
This just filled some major gaps I had in understanding colour perception. Totally fascinating
This guy reminds me of a young David Hewlett.
Wow. As crazy as this Science Asylum may seem, I actually learned something. Maybe I should get myself checked out.
Great content. I'm such a blue collar guy. But I love space stuff. So I'm killing it in the dating pool. 🤣😂
Thanks for portuguese subtitles!!!!!!!!!!
Next time people try to convince me that we don't percieve color "chords" (mixes of several colors) the same way as sound/music chords (mixes of several notes/tones/frequencies), I'll send them this video with a comment "nonsense".