if you are actually seeing it, it will tilt as you tilt your head. For me when I looked through the polarizer I saw blue the brightest and yellow was faint. But on the screen yellow was the brightest. This may be different for different people though.
@@1tubax Meh, the only reason these subjects interest me, is purely because this guy explains everything so well. I am not dedicated enough to grab the books and learn
@@expertoflizardcorrugation3967 Legal blindness, nystsgmus, light sensitivity, strabismus ( though that part has mostly corrected itself since childhood) lack of pigment in skin. With a special pair of glasses i am able to drive though.
@@lbrown21494 does it effect your perception of colour properly. from what I can find it mostly decreases general visual acuity and image quality as opposed to recognition of wavelengths
It’s important to note this might not work in OLED screens, as those don’t need to use polarisers. Furthermore, screen protectors usually scramble the polarisation due to them using a thin plastic film (if you look at a screen protector through a polariser you can see random multicolor interference patterns).
With the particular presentation in this video it's also possible that you're going to see a persistence aftereffect from having stared at the yellow and blue nodes.
Real Haidinger's brush has an unbroken yellow part, and broken blue. When you tilt your head, its orientation won't follow your eyes. A negative afterimage of a picture of Haidinger's brush has an unbroken blue part, and broken yellow. When you tilt your head, its orientation will follow your eyes.
I got the afterimage from staring at a fullscreen Notepad and then tipping my head -- didn't notice much while my head was upright, but a strong yellow when tipped. I presume that means I'm seeing, but not easily perceiving, a blue while my head is level?
Same. Also are we able to see it or not? Like… I can see the blue/yellow electron thingy… but is that what I am supposed to see or am I supposed to see a brush. I don’t have a polarizer so idk what I am supposed to see or if i can already see it
You could orient your phone to make it work. If you have polarized sunglasses, put them on and rotate your phone until it dims or turns purple. That's the angle you should try to see this "brush" at
Optical Engineer here, a lot of the light "information" here is not right. For example, metals do reflect and polarize light. There is a whole field of measurements "metrology" dedicated to thin films and metal polarization detection also known as ellipsometry. Linear polarizers dont work on circular or elliptically polarized light, instead, you need a retarder (compensator), quarter wave plate + a linear polarizer to resolve the polarization of light coming from a metal.
I'm no engineer, but I appreciate your comment a lot. The video shocked me a little when the metal film didn't get blocked by the linear polarizer. I thought to myself, "does this mean that metal doesn't polarize light when it reflects? There seems to be a contradiction somewhere." Then you came into the comments and helped clarify it. Thanks.
I'm a chess lover; I feel offended. Edit: That was just a joke... The most popular chess channel "agadmator" starts his videos by *"Hello* everyone!" that's why I said I feel offended for saying "Hey everyone"
The last time I was at an eye doctor's, I was able to tell the screen they were using was polarized because I've discovered that one of my eyes starts hurting when staring at polarized light in a dark room and everything starts to look weird with that eye.
I can also identify a specific artificial light; for me it's infrared light. I get really bad headaches if I'm around it for long enough, like Microsoft Hololens or TrackIR
I remember an Inuit guide describing a similar vision that he used to navigate in the snow. I was so crazy how these guys could get around in wast expanses of white with no landmarks before GPS and compasses were very bad in the Arctic.
@@AGKyran They see the polarized light in the snow and can tel where the sun is on a cloudy day. There are special goggles you can make that will do this too.
This is perfect timing! My wife and I were talking about polarized sunglasses and our kids asked what polarization is. This video explains it better than I did so now I can show them this!
Quick notice for people trying this on phone or tablet. Protective glass strongly depolarizes the light coming from LCD, so it won't work with glass screen protector.
It's neither the color nor the pixel depth, it's the polarization effect and your ability to discern it. In fact the pixel depth is super irrelevant to this one. One giant pixel would do the job just fine. And as for colors, I would *imagine* that the exact same effect is there no matter what, but the color of the light would wash out the effect to the degree that that color interacts with yellow and blue, so if the light was bluish, the blue region would disappear and the yellow region would take a greenish cast...but everything after the word 'imagine' is just speculation.
What's even worse is when you do get the joke, but are the only one who doesn't find it funny, and you think to yourself "why is that roll-on-the-ground funny to everyone?"
I've seen this around lights constantly since I was young. Around 12 years old I told my mom about it because I thought there might be something wrong with my eyes and she (being a spiritual lady) told me I see auraa. It's neat to have a scientific explanation for what I'm seeing, because I've never shared her spiritual explanation.
Or possibly Fuchs' Dystrophy? It is a genetic condition that causes corneal edema and _could possibly_ progress to blindness. I see bright star-like rays from bright lights and circular rainbows around them. (The edema causes refractory changes.)
I have been noticing something yellow in my field of view for about a year now only with my iPad on white background when reading. It was quite annoying, I though it was old age and my eyes were going. But so cool to know what it is now. Thanks!
I actually noticed this when looking at computer screens more that a decade ago. I searched for “blue and yellow blob in vision” and got my answer. It’s always fascinated me that some (or most) of us can faintly detect not only polarized light, but the direction of polarization. Really cool. A 6th sense.
As a child, I always stopped and stared at the puddle in the parking lot. The oil on the top made a polarizing effect. I tried to explain it to my parents, but they couldn't see it.
i’m kinda really glad this channel went mainstream. it’s used to be like my guilty pleasure of learning bout random sciency nerdy things, now the comments are flooded with meme replies and inside jokes and action labs lore, lmao. i love it. feels like a hidden gem i like is being shared w the world (in a good way)
The sun is usually above our heads, so all the polarized sunglasses just block glares from right above sources best and do a decent job when the source is slightly to the side. If the sun is below your head you might better be slightly concerned about your car being upside down.
5:17 The normal orientation, it's invisible, but I imagine the starting point is that the yellow line is vertical. If I tilt my head left, the yellow line tilts right, and if I tilt my head right, the yellow line tilts left. It's possible that it's invisible to me when level because I'm used to looking at this screen with a level head, so my brain just filters it out.
Oooh thanks! You actually helped me see it consistently. I was beginning to wonder if I was just seeing things because I would see it faintly for only a split second at a time.
Me: "I can see it, but the blue is horizontal." Video: "Which direction it is depends on how you're tilting your head." me, laying on my side: "Well there you go then."
i think everyone or almost everyone can see it but if you are actually seeing it he said that as you tilt your head you should see it tilting too or something like that which doesnt happen to me
Light in nature are made of oscillating pairs of magnetic and electric fields. Normal light is like tons of those pairs of waves he showed, but all mooshed and close together and tilted at random angles from each other. Imagine lots of fish randomly swimming serpentine in one direction, but some are upside down, sideways, etc. The polarizers he had are like microscopic window blinds. When the sun shines through your blinds, some light is blocked and you get parallel lines of light on the wall or whatever. Polarizers block all the light waves that aren't parallel to the little blinds on the sheet. So, if some light is LINEARLY polarized, then those polarizers will let it through if its wave can slide through the polarizer slits. The light gets dimmer if it's not lined up perfectly, and gets blocked when the wave is perpendicular.
I used to see that RIDICULOUSLY often on the back glass of cars after I tried my dad's sunglasses for about a week I could see it for MONTHS at a time, about 4 months, before the effect seemed to taper off.
@@smilloww2095its just being recommended, you replied this one hour ago in a 2 year old comment leading for it to be recommended to me, just wait a little and you will (probably) see
@@persephonehades7547 yes absolutely, its almost like a hint of a "second shadow" Its most evident to me in very bright, direct sunlight, with the sun almost overhead, to eliminate other shadows.
I love this channel so much b/c it reminds me of the early days of science communicator youtube. Every video is creative and discusses science topics I've never heard of before. These days, there are countless channels that just rehash what others have talked about already. Awesome work!
@@doesntmatter2732 Try looking at a big fluorescent black light bulb (regular, not blue-black) for a minute. You can also see them against the blue of the sky, maybe not quite as well.
@@doesntmatter2732 I guess I should elaborate a bit, we were all tripping one night. A few of my friends were over by the black light, "Can you see them yet?" "Whoa!." I had never heard of floaters, but after looking at the light for a minute or two, I suddenly saw them as well. The sun was coming up, when I went outside and looked against the blue of the sky, I saw a whole bunch of floaters, from that day forward, unfortunately. Once you see them, you can't unsee them. Are you absolutely sure that you want to see them? They have always been with you, but you block, them out, like background noise. But after you notice that spot on the wall, you're might see it the rest of your life. Are you _sure_ that's what you want???
I rarely see floaters, but it's nice when I do. Wouldn't wish for anyone to see them all the time though. But after taking a lot of drugs during about 4 years, I now have phosphenes all the time. I mostly see them at night, it's very easier to see them in dark places. And it's cool. If you start focus at them, they may start to change and make shapes. The more I focus on them, the more they get detailed. It's a fun thing. Also staring for a moment dehydrates your eyes. You can play with it by fixing the ground. It works better on clear repetitive patterns. When you do, it then starts to move. I've done that again recently (don't do it too often!), and it looked like ripples. It's quite awesome. Also, learned the trick where you stay in the dark, and turn on a light above your head on the side of your head. Makes you able to see the blood vessels in your eyes, like a web (it will be in a dark gray most likely).
That was actually amazing, I never thought I would learn something this weird about myself and then pick up on it within seconds of turning my head a few times. Now this is probably something I'm going to see all the freaking time!
I turned off my blue light filter for this video and saw nothing. I even checked with my polrised sunglasses that my screen is definitely polarised, but I can still not see it
“Left polarized light, and right polarized light” Me: There’s a political joke in there somewhere. *Shows the light waves in red and blue* Me: Oh come on.
Apparently, if you were randomly dropped anywhere in the United States, you can use the filters in this kit to determine if you're in a blue state or a red state. 😉
I just started messing with a polarizing filter on my camera and this made me realize why the filter can still be turned after being screwed in. Don’t know why I didn’t realize it sooner. Thank you.
oh my god i’ve been seeing this for YEARS and never had any idea what it was!!!! i’m diagnosed with HPPD and have extremely bad visual snow so because of that i always second guessed myself thinking it was whenever i was on a bright white screen it was causing like a tiny part of my visual snow to become way more noticeable (despite knowing from experience that my visual snow improves greatly with strong light and only gets bad and intense in low light) but it was unmistakably different and i’m so glad i finally have an answer!! it’s extremely noticeable on my monitor but i see it sometimes on my ipad too (never on phone) for anyone having trouble seeing it, keep in mind that for me at least the simulation he shows of it is a bit misleading in terms of its visual clarity and shapes, for me on my pc monitor when my head was in the normal vertical position i was seeing the blue as quite large messy circular shapes like an infinity sign, but when i tilted my head sideways to see the yellow it was a much thinner profile in comparison as it wasn’t as messy (still very vibrant though) thank you for finally giving me the answers to this extremely mild “inconvenience” that i thought was me just being crazy lol
WOW that's subtle! The moment I took off my normal nearsighted glasses I could see it, because the yellow part switched from being vertical to horizontal. I'm confused how that could happen given the explanation, but it was really cool to see!
Same here. When I tilt my head left and right the yellow bar rotates a few degrees as well. Very interesting. Now I am going to be seeing that all day as I work at my computer.
Wow! I couldn't see it at first, and then I got the test image to look more bright, so I tried again with the actual white image and I saw two yellow dots flip sort of diagonally! Cool stuff.
It looks pretty viewable (if that's even a word), I was able to see it clearly, not clear to the point of where it's not blurry, but it's clear, the white light altough starts to block me from seeing the blue part after a while.
Video Idea: Do the opposite where you show how to find your blind spot by closing one eye, extending your arm, stick out your thumb, and move it away from the center of your vision until when you wiggle your thumb, you don't see it.
@@D_D._ ... Because most games on the DS/Wii are only playable on the DS/Wii? Because they still have their old console and games and don't have to buy anything? Because they couldn't care less if the console/game is used as long as it plays fine?
Pretty neat stuff. I use cross polarization all the time on VFX projects where we need to control which lights are producing specular highlights on objects that are going to be comped in with 3D animated elements. Each light source will have a polarizer that is aligned specifically for that group and the the camera lenses will have a circular polarizer that can be adjusted depending on the lighting group that is needed.
While I didn't see the Brush, I did get the thought to turn my polarized sunglasses and WOW when it dimmed that white background (at around 45 degree tilt) I saw all the spots on my monitor! Thanks for this new tech.
Me first seeing the polarizer in action: Wow, imagine if there was like something you can wear that would just block all the glares on screens Me like a few seconds later when he gets to the phone: Crap I just accidentally reinvented sunglasses
Well, thanks to the "Hooded Claw" here you can now inform them when they are wearing sunglasses the wrong way although I thought there was only one way to wear any kind of glasses....
I didn't not expect to see it myself with no filter!! So cool! I could only see one color at a time though, I had to focus on the color itself. It also would rotate opposite of the direction I would tilt my head. As I tilted right, it would tilt left.
I've been able to see this phenomenon for years. At first it freaked me out and I thought there was something wrong with my eyes and rushed to the eye doctor
This was actually so cool. It's funny to me that we were seeing the brush the entire time you were describing it, we just didn't know what to look for and didn't realize it.
I remember seeing this when I was a kid It was when I came inside, after playing in the snow, but the colors were different I remember it being blue and pink; which kind of makes sense, thinking that yellow Easter egg dye comes from a tablet that looks red, because it's so condensed
Now I know what he's talking about. I see a few different colors after bleaching my eyes with bright white, particularly in the winter. Going inside everything turns pink, yellow, or blue
I realized some time ago that when in darkness i see better not looking directly at stuff. Luckily videogames trained me to use a lot of my periferal vision.
This always tripped me out when I was laying in bed. I’d see something clear as day in my peripheral vision, look over and not see it! Scared me when I was a kid.
You don't need sunglasses to see it. You need an ability to perceive polarization of light. You can even look at the blue sky on sunny day (not with the sun in your field of view ofc:) and see this phenomena. If you don't you just don't have this "superpower" then. :P
Actually had a really easy time with this one :) Blue was horizontal, yellow was vertical, and the would each fade in an out, peaking as my head was perpendicular to the orbital
i used to see this thing all the time back when i used to be really concerned with my visual disturbances, i thought that was just another one of them!!! i saw it every time i rotated my phone. this is super cool!!
Without polarizer - yes. Good - depends. I could only see it faintly appear when I tilted my head left and right, probably because my brain filters it out due to me spending so much time in front of a computer screen. You only need the polarizer if you have a nice new phone with no access to normal LCD screens, or want to observe this while looking at a white wall.
That's not right at all :) There's actually 3 directions it can be - up-down, left-right, which polarized filters rectify to... and then around... end up getting rectified to an up-down or left-right when filtered... that's why two filters together 90 degrees apart end up blocking it. But - each layer of polarizer is a new interaction, and really a different photon is emitted from the far side - it's not that only some of them get emitted as the same... hence if you put a polarizer not 90 degrees between two that are 90 degrees you still end up with light going through... but 2 immediately 90 degree apart layers will block all so there's no possibility of retransmission. (sorry I had only made it to 0:50 before commenting)
When I was little, my dad would take us out on the boat or along the pier at the beach and let us use his polarized sunglasses to see the fish through the water. As a kid it was SO cool to feel like you had x-ray vision. We could dee the fish through the water clear as day, as if looking into an aquarium.
![ลองสุ่มไอโฟน 990 โกงมั้ย? [ โกงมั้ยครับ ep.101 ] | DOM](http://i.ytimg.com/vi/bfsWe0j492k/mqdefault.jpg)
if you are actually seeing it, it will tilt as you tilt your head. For me when I looked through the polarizer I saw blue the brightest and yellow was faint. But on the screen yellow was the brightest. This may be different for different people though.
cool
For me, I see the yellow brightest and blue after I see yellow
Humm. 🤔👍
I see it as light yellow
Yep
What's amazing about him is he has very good knowledge of biology, chemistry & physics and he knows how to use them
And he knows how to give the information as interesting as possible
Honestly if you invest 2 years into studying each of the abovementioned sciences you can be just as good as him
@@1tubax Meh, the only reason these subjects interest me, is purely because this guy explains everything so well. I am not dedicated enough to grab the books and learn
@@1tubax that’s also a problem with schools, only one year to teach a bunch of subjects and people lose interest so fast
@@aquacelot i choose learning german in my school, now i don't want to learn it from school but still wanted to learn
Me with macular albinism trying to see it.
Him: it occurs in the macula.
Me: Oh, well damn.
ouch. what sort of unique visual quirks are associated with macular albinism
Incredibly niche, unrelatable moment
@@scheezy Lol, look at you with your functioning eyes over here.
@@expertoflizardcorrugation3967 Legal blindness, nystsgmus, light sensitivity, strabismus ( though that part has mostly corrected itself since childhood) lack of pigment in skin. With a special pair of glasses i am able to drive though.
@@lbrown21494 does it effect your perception of colour properly. from what I can find it mostly decreases general visual acuity and image quality as opposed to recognition of wavelengths
It’s important to note this might not work in OLED screens, as those don’t need to use polarisers. Furthermore, screen protectors usually scramble the polarisation due to them using a thin plastic film (if you look at a screen protector through a polariser you can see random multicolor interference patterns).
*cries in super AMOLED*
Works on my Kindle
Worked on mine (mate 20 Pro)
Oh so that's why my Zenfone's screen reflection looks fine but my Xiaomi looks like Note 10+'s sugar rush candy racer backdoor
rip :(
With the particular presentation in this video it's also possible that you're going to see a persistence aftereffect from having stared at the yellow and blue nodes.
This indeed seems to be the case -- after he quit showing the pattern, I saw it rotated 90 ` for several seconds before it eventually faded away.
Real Haidinger's brush has an unbroken yellow part, and broken blue. When you tilt your head, its orientation won't follow your eyes. A negative afterimage of a picture of Haidinger's brush has an unbroken blue part, and broken yellow. When you tilt your head, its orientation will follow your eyes.
@@magentamonster . . . And that's what I got.
I thought so too, but as I rotate my head one way the 'brush' rotates the reverse.
I got the afterimage from staring at a fullscreen Notepad and then tipping my head -- didn't notice much while my head was upright, but a strong yellow when tipped. I presume that means I'm seeing, but not easily perceiving, a blue while my head is level?
The Action Lab: "Not Everyone Can See Haidinger's Brush-Can You?"
Me: No, but I will blame my monitor.
Same
I see it
I have two monitors. I can see it much better on one than on the other.
Same
I see it it's a yellow line going in-between two light blue dots like a plus sign
When I saw "Includes paid promotion" I started to pray for not being Raid Shadow Legends.
Still better than Manscaped.
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@@nou4898 Drop a nuke on Iraq...
@@mr.stealyourspaghetti8004 as an Iraqi I give you full permission to do so
I wish this started off with an explanation of what "Haidinger's Brush" is.
Same. Also are we able to see it or not? Like… I can see the blue/yellow electron thingy… but is that what I am supposed to see or am I supposed to see a brush. I don’t have a polarizer so idk what I am supposed to see or if i can already see it
@@TheCatsofVanRaptorMe too, i wish we had an explanation
(im not done watching so idk)
Patience is a virtue. This is what watching tiktok and skibidi toilet all day does to people, smh
@@PunakiviAddikti
I need the subway surfer in the corner or I can't leave this video long enough to hear about harbinger's bush
@@PunakiviAddiktihow do you know these terms, hm? 😏
Me, on my phone: I'm sure that was cool.
I could see it on my phone
Barely
You could orient your phone to make it work. If you have polarized sunglasses, put them on and rotate your phone until it dims or turns purple. That's the angle you should try to see this "brush" at
I am on phone I see it it doesn't change lol
@@EfrenMunoz313 most phones do not use the polarized light anymore.
They use oled's that are directly viewable.
@@allhumansarejusthuman.5776
That might explain why I can see it on my older phone.
Optical Engineer here, a lot of the light "information" here is not right. For example, metals do reflect and polarize light. There is a whole field of measurements "metrology" dedicated to thin films and metal polarization detection also known as ellipsometry. Linear polarizers dont work on circular or elliptically polarized light, instead, you need a retarder (compensator), quarter wave plate + a linear polarizer to resolve the polarization of light coming from a metal.
I’ve got the retardation and compensation covered.
Engineer here too. Happens all the time when you get a great education 😪... The "news" is The Worst
I'm no engineer, but I appreciate your comment a lot. The video shocked me a little when the metal film didn't get blocked by the linear polarizer. I thought to myself, "does this mean that metal doesn't polarize light when it reflects? There seems to be a contradiction somewhere."
Then you came into the comments and helped clarify it. Thanks.
Thank you for taking your time to explain it.
@@jamescollier3 ho
The "hey everyone" never gets old
""Hey everyone today I'm going to be....""
I'm a chess lover; I feel offended.
Edit: That was just a joke... The most popular chess channel "agadmator" starts his videos by *"Hello* everyone!" that's why I said I feel offended for saying "Hey everyone"
@@LeventK why?
yea will nerver get old
@@LeventK what are you talking about
The last time I was at an eye doctor's, I was able to tell the screen they were using was polarized because I've discovered that one of my eyes starts hurting when staring at polarized light in a dark room and everything starts to look weird with that eye.
I hope you told your doctor about that
I can also identify a specific artificial light; for me it's infrared light. I get really bad headaches if I'm around it for long enough, like Microsoft Hololens or TrackIR
same. and I thought I was the only one. tbh, this is bad eye condition.
LED lights makes me feel woozy I feel like it's their flicker frequency
*professor Xavier enters the chat*
I remember an Inuit guide describing a similar vision that he used to navigate in the snow. I was so crazy how these guys could get around in wast expanses of white with no landmarks before GPS and compasses were very bad in the Arctic.
You mean, like, being able to see magnetic fields?
😲
@@AGKyran They see the polarized light in the snow and can tel where the sun is on a cloudy day. There are special goggles you can make that will do this too.
Vikings used a sunstone.
That's awesome
Me, when I saw that brush: Woah, I have a super power
Me, after realising that it was an image: Oh....damn
Me, after the image is gone: AM I BLIND?!
This is perfect timing! My wife and I were talking about polarized sunglasses and our kids asked what polarization is. This video explains it better than I did so now I can show them this!
ok
ok
ok
ok
I know the feeling, it's humbling but motivating to see someone do something better than you
Quick notice for people trying this on phone or tablet.
Protective glass strongly depolarizes the light coming from LCD, so it won't work with glass screen protector.
Thank you.
Wait why can I still see the brush
Yeah I doesnt have protective glass on my tablet and i can see nothing with my polarized glass on..😅
I have an iPad Pro and immediately saw the blue and yellow image. I’m confused about what he’s trying to show us.
@@Somethingaboutthatsame. I’m confused by this video.
"that is so cool" "holy cow" can never get old
"woooah! (giggles)"
*so kewl
@@tjsudac kul
Kinda reminds me when i was in india with the holy cows huh no wonder why the name got invented
thumbnail: "can you see this?"
people with High quality 8K Display : "yep clearly"
Im on 144 p and i can see it, my eyes are pros
@@oscarfine8343 the amount of pixels doesnt really matter, its the color
Me with my 2016 phone : i can see it clearly, cuz i always see it everyday
@@dimp.3102 yep and High quality 8K Display has better color quality, like OLED 8K Display or something
It's neither the color nor the pixel depth, it's the polarization effect and your ability to discern it. In fact the pixel depth is super irrelevant to this one. One giant pixel would do the job just fine. And as for colors, I would *imagine* that the exact same effect is there no matter what, but the color of the light would wash out the effect to the degree that that color interacts with yellow and blue, so if the light was bluish, the blue region would disappear and the yellow region would take a greenish cast...but everything after the word 'imagine' is just speculation.
Me, on my phone : is this how you feel when you don't get the joke that makes everyone laugh?
yes
😂😂😂😂
What's even worse is when you do get the joke, but are the only one who doesn't find it funny, and you think to yourself "why is that roll-on-the-ground funny to everyone?"
On my phone and I can see it
Me with an old phone
I've seen this around lights constantly since I was young. Around 12 years old I told my mom about it because I thought there might be something wrong with my eyes and she (being a spiritual lady) told me I see auraa. It's neat to have a scientific explanation for what I'm seeing, because I've never shared her spiritual explanation.
Are you sure what you're seeing isn't due to astigmatism?
@@SuperC142 Or glaucoma. Circular auras around lights are a possible warning sign for that.
Or possibly Fuchs' Dystrophy? It is a genetic condition that causes corneal edema and _could possibly_ progress to blindness. I see bright star-like rays from bright lights and circular rainbows around them. (The edema causes refractory changes.)
@@MossyMozartwait, that’s not normal?
I have been noticing something yellow in my field of view for about a year now only with my iPad on white background when reading. It was quite annoying, I though it was old age and my eyes were going. But so cool to know what it is now. Thanks!
Was it as prominent as when the blue and yellow stuff was shown here or not that intense?
@@user-bf6gz8ej4o Just the yellow not the blue
There r many reasons you might see a yellow haze.
That's more likely IPS glow, an artifact that IPS panels often have which becomes most visible with bright backgrounds.
I thought I was special till he took the image away.
I'm your 100th liker here & bye.
I actually noticed this when looking at computer screens more that a decade ago. I searched for “blue and yellow blob in vision” and got my answer. It’s always fascinated me that some (or most) of us can faintly detect not only polarized light, but the direction of polarization. Really cool. A 6th sense.
Oh that's what it was, I see them quite a lot…
As a child, I always stopped and stared at the puddle in the parking lot. The oil on the top made a polarizing effect. I tried to explain it to my parents, but they couldn't see it.
I haven't noticed that effect in awhile, come to think of it..... Do you still notice it?
Wait, not everyone can see it?
Wait they can't see it?
@@heyyo3746 No, not the ones I was looking at.
@@w13rdguy angles
i’m kinda really glad this channel went mainstream. it’s used to be like my guilty pleasure of learning bout random sciency nerdy things, now the comments are flooded with meme replies and inside jokes and action labs lore, lmao. i love it. feels like a hidden gem i like is being shared w the world (in a good way)
Yes. But if you are being honest it in part is based on the quality of the screen you are using.
Test like this is not usefull if it wasn't played on same display or on paper and people looking at it from same distance and angle,but it fun tough
@@HanisExperiments you are everywhere
The idea is to look into a diffuse homogenous white backlite that fills your field of view if i understand correctly ?
He’s not talking about the example image he showed, he talking about looking through a polarizing filter at a flat white light source.
@@HanisExperiments I thiink you watch what I watch
If you orient your sunglasses correctly,
*Rotates head*. .
Driving 10/10
The sun is usually above our heads, so all the polarized sunglasses just block glares from right above sources best and do a decent job when the source is slightly to the side.
If the sun is below your head you might better be slightly concerned about your car being upside down.
Thank you for showing me how dirty my laptop screen really is
I just had to clean my phone and my iPad trying to see this thing… 🤣🤣🤣
I got a great view of how dirty my monitor is and a terrifying realization that I have an absolute ton of floaters I didn't use to have.
had to clean mine for this vid
Family caught me staring at a white screen with my sunglasses on. Thanks Action Lab!
Congrats
Congrats
This man looks like hes so sick of life yet he opens my mind to life
He's too smart so now he's just bored
someone else described him as looking like both the happiest and saddest man in the world, which is both perfect and kind of disturbing
@@evilotis01 eyebrows are everything here. I recon anyway, plus he is maybe doing a presenter smile not a genuine one.
I actually saw everything, though the yellow was relatively clearer to me than the blue
Same to me
yellow was a lot stronger yes
There's no blue touch liars
@@no_idea0537 there is, just concentrate
For me, blue was more obvious
5:17 The normal orientation, it's invisible, but I imagine the starting point is that the yellow line is vertical.
If I tilt my head left, the yellow line tilts right, and if I tilt my head right, the yellow line tilts left.
It's possible that it's invisible to me when level because I'm used to looking at this screen with a level head, so my brain just filters it out.
I'm gonna second the brain filter theory
I can see it while tilting my head, but only while my head is moving
Once I stop, it fades away
Oooh thanks! You actually helped me see it consistently. I was beginning to wonder if I was just seeing things because I would see it faintly for only a split second at a time.
It's becuase the polarization of your phone is at an angle.
Me: "I can see it, but the blue is horizontal." Video: "Which direction it is depends on how you're tilting your head." me, laying on my side: "Well there you go then."
You see blue?
That’s the polarization of it
@@lionessfit3041 I also saw blue
That happened to me too
I see both of them. Doesn't change when I turn my phone or tilt my head.
Yellow: Horizontal
Blue: Vertical
All I could see was how dirty my screen was when I watched this on my TV.
SAME
same
I can see it perfectly without the polarizer.
Same
lcd screen huh
I could only see the blue.
Same.....
I GUESS I'M A SUPERHERO NOW MOM TIME TO DECIDE A NICKNAME
i think everyone or almost everyone can see it but if you are actually seeing it he said that as you tilt your head you should see it tilting too or something like that which doesnt happen to me
I could see the yellow as clear as day, but the blue was like thinly stretched watercolor. (Without polarization)
Same. maybe because the white is tinted blue.
Y'know, this would be *really* interesting if he actually explained what polarized light is! :D
Light in nature are made of oscillating pairs of magnetic and electric fields. Normal light is
like tons of those pairs of waves he showed, but all mooshed and close together and tilted
at random angles from each other. Imagine lots of fish randomly swimming serpentine in
one direction, but some are upside down, sideways, etc.
The polarizers he had are like microscopic window blinds. When the sun shines through your
blinds, some light is blocked and you get parallel lines of light on the wall or whatever. Polarizers
block all the light waves that aren't parallel to the little blinds on the sheet. So, if some light
is LINEARLY polarized, then those polarizers will let it through if its wave can slide through
the polarizer slits. The light gets dimmer if it's not lined up perfectly, and gets blocked when
the wave is perpendicular.
I was waiting the whole time for him to explain it or point us somewhere we can learn about it lol
@@willbe3043 It just takes a second to search it on TH-cam tbh
It means it's cold lmao
Yes. Or you could do your own research further into it.
Not that hard and Google is free.
I’ve always been able to see this. This has actually been a problem though. LED headlights really mess with my eyes.
I used to see that RIDICULOUSLY often on the back glass of cars after I tried my dad's sunglasses for about a week I could see it for MONTHS at a time, about 4 months, before the effect seemed to taper off.
I have the same issue. I might buy those night driving glasses that block the glare from bright lights. The LED lights completely destroy my eyes.
@@persephoneblack888 same
wait, so that's the reason I can't see glowing writings sharp? I always thought it was my glasses being wrong!
Same. I often have to wear polarised shades to stop my eyes hurting at certain as well.
This is indeed like unlocking a superpower, cool.
69 likes, not gonna ruin it
@@QuietStudiosOfficial the world needs more people like you
@︎ ︎ ︎ ︎ 😢
I like your content, but I find it a bit polarizing...
Weird that this doesn't have a thousand likes
@@smilloww2095its just being recommended, you replied this one hour ago in a 2 year old comment leading for it to be recommended to me, just wait a little and you will (probably) see
@@RichD1 2 years to make a massive comeback lol
I see what you did there
But I needed some sunglasses
😎
😂
Instructions are wrong, ended up activating mangekyo sharingan.
This is the moment I realized I've always seen it but never paid attention
Same here, its always been there, just didnt realize what i was looking at.
Is it supposed to be really feint?
@@persephonehades7547 yes absolutely, its almost like a hint of a "second shadow"
Its most evident to me in very bright, direct sunlight, with the sun almost overhead, to eliminate other shadows.
Everyone else with the naked eye?
I thought for years that my monitor was messed up. Now I know that it’s just my eyes being awesome.
Everyone who can't see it:
"Alright, then. Keep your secrets. 😏"
Nice frodo quote 👌
:(
I didn't see it, but I did notice a lot more floaters than I thought I had.
this is what they use on cameras while filming shiny surfaces
I love this channel so much b/c it reminds me of the early days of science communicator youtube. Every video is creative and discusses science topics I've never heard of before. These days, there are countless channels that just rehash what others have talked about already. Awesome work!
Great, another thing that I can't un-see. Someone showed me how to see all the "floaters" one day, now they're with me for life.
For me floaters are kind of like the game. You only lose if you think about it. By the way, you just lost the game
Wait you can purposely see floaters? How???
@@doesntmatter2732 Try looking at a big fluorescent black light bulb (regular, not blue-black) for a minute. You can also see them against the blue of the sky, maybe not quite as well.
@@doesntmatter2732 I guess I should elaborate a bit, we were all tripping one night. A few of my friends were over by the black light, "Can you see them yet?" "Whoa!." I had never heard of floaters, but after looking at the light for a minute or two, I suddenly saw them as well. The sun was coming up, when I went outside and looked against the blue of the sky, I saw a whole bunch of floaters, from that day forward, unfortunately.
Once you see them, you can't unsee them. Are you absolutely sure that you want to see them? They have always been with you, but you block, them out, like background noise. But after you notice that spot on the wall, you're might see it the rest of your life. Are you _sure_ that's what you want???
I rarely see floaters, but it's nice when I do. Wouldn't wish for anyone to see them all the time though.
But after taking a lot of drugs during about 4 years, I now have phosphenes all the time.
I mostly see them at night, it's very easier to see them in dark places.
And it's cool. If you start focus at them, they may start to change and make shapes.
The more I focus on them, the more they get detailed.
It's a fun thing.
Also staring for a moment dehydrates your eyes.
You can play with it by fixing the ground. It works better on clear repetitive patterns.
When you do, it then starts to move.
I've done that again recently (don't do it too often!), and it looked like ripples.
It's quite awesome.
Also, learned the trick where you stay in the dark, and turn on a light above your head on the side of your head.
Makes you able to see the blood vessels in your eyes, like a web (it will be in a dark gray most likely).
That was actually amazing, I never thought I would learn something this weird about myself and then pick up on it within seconds of turning my head a few times. Now this is probably something I'm going to see all the freaking time!
What he meant by "Not Everyone Can See" he meant people with their blue light filters enabled.
Is it odd that I saw both with and without the blue light filter enabled (LG v50 Thinq)?
I have my blue light filter on and I saw it
You guys might have it at a lower level.
I turned off my blue light filter for this video and saw nothing. I even checked with my polrised sunglasses that my screen is definitely polarised, but I can still not see it
Nah he meant that some people are physically incapable of seeing polarized light.
“Left polarized light, and right polarized light”
Me: There’s a political joke in there somewhere.
*Shows the light waves in red and blue*
Me: Oh come on.
That's funny
Apparently, if you were randomly dropped anywhere in the United States, you can use the filters in this kit to determine if you're in a blue state or a red state. 😉
@@Robert41265how do swing states then
@@wilyriley_A swing state would be unpolarized. 😉
I just started messing with a polarizing filter on my camera and this made me realize why the filter can still be turned after being screwed in. Don’t know why I didn’t realize it sooner. Thank you.
oh my god i’ve been seeing this for YEARS and never had any idea what it was!!!! i’m diagnosed with HPPD and have extremely bad visual snow so because of that i always second guessed myself thinking it was whenever i was on a bright white screen it was causing like a tiny part of my visual snow to become way more noticeable (despite knowing from experience that my visual snow improves greatly with strong light and only gets bad and intense in low light) but it was unmistakably different and i’m so glad i finally have an answer!! it’s extremely noticeable on my monitor but i see it sometimes on my ipad too (never on phone) for anyone having trouble seeing it, keep in mind that for me at least the simulation he shows of it is a bit misleading in terms of its visual clarity and shapes, for me on my pc monitor when my head was in the normal vertical position i was seeing the blue as quite large messy circular shapes like an infinity sign, but when i tilted my head sideways to see the yellow it was a much thinner profile in comparison as it wasn’t as messy (still very vibrant though)
thank you for finally giving me the answers to this extremely mild “inconvenience” that i thought was me just being crazy lol
Me: trying to see it
Video: "it occurs in the macula"
Me: with swollen optic nerves "ah."
Ahhh, that makes sense
I guess I should save this video as an amateur eye test for inflammation...
WOW that's subtle! The moment I took off my normal nearsighted glasses I could see it, because the yellow part switched from being vertical to horizontal. I'm confused how that could happen given the explanation, but it was really cool to see!
I really like your voice it is so chill… you should do a podcast
Yes
I would pay him to read me a bet time story
The sarcasm levels in this comment are astronomical.
@@kyotaiken not really
@@kyotaiken The stupidity of this comment reaches levels i can't comprehend.
I can see it!
Had to turn my head down 90 deg to see it better, but its there, about 1/2 the size of the one you started with.
It's amazing how much and how little you can see with your own senses.
I got a headache after watching that metal reflection... It was as if I was staring at the sun 😂
Turn down your monitor's brightness damnn
that proves that you have a head
@@Sachin-ct3md I wish I had a head 😔
@@SunGodAtomes whar r u sayin ? you need a head 😲
discord people who always rant about light mode and demand dark mode will gonna hate this video 😆
I can see it, its smaller than I expected. I could only see the horizontal yellow.
Once I could see yellow, I tilted my phone very slightly left and right, then the blue showed up just barely.
Same here. When I tilt my head left and right the yellow bar rotates a few degrees as well. Very interesting. Now I am going to be seeing that all day as I work at my computer.
yes it seems very small compared to the picture I showed
Whoa the action lab
@@narmathaarulkumar4250 woah a person
Wow! I couldn't see it at first, and then I got the test image to look more bright, so I tried again with the actual white image and I saw two yellow dots flip sort of diagonally! Cool stuff.
that's probably an afterimage, if the colors swapped places
It looks pretty viewable (if that's even a word), I was able to see it clearly, not clear to the point of where it's not blurry, but it's clear, the white light altough starts to block me from seeing the blue part after a while.
Video Idea: Do the opposite where you show how to find your blind spot by closing one eye, extending your arm, stick out your thumb, and move it away from the center of your vision until when you wiggle your thumb, you don't see it.
Why don't you show us instead 😁
@@bilalejaz1682 Vsauce touched on the blind spot of the eye here: th-cam.com/video/4I5Q3UXkGd0/w-d-xo.html
you just explained it, now, why we need a video
Damn wish I had a polarizer for my Nintendo ds so I could see the screen in the sun
the real struggle 😂
man I’m surprised that people play on ds and Wii’s nowadays even though you can only buy pre-owner because they don’t make them anymore but still
@@D_D._ cause there are games ppl want to play on them?
@@D_D._ ... Because most games on the DS/Wii are only playable on the DS/Wii? Because they still have their old console and games and don't have to buy anything? Because they couldn't care less if the console/game is used as long as it plays fine?
@@D_D._ Home brew
Pretty neat stuff. I use cross polarization all the time on VFX projects where we need to control which lights are producing specular highlights on objects that are going to be comped in with 3D animated elements. Each light source will have a polarizer that is aligned specifically for that group and the the camera lenses will have a circular polarizer that can be adjusted depending on the lighting group that is needed.
What’s odd is that I instantly saw it from the thumbnail but it did give me a bit of a headache from looking at it.
I think that's an image tho. I think where you have to really see it is at 5:19
@@mintycbm still there, colour flips but shifts no matter where I look as well with tilting. Freaky.
The thumbnail is just a representation of the effect so everyone sees the thumbnail 🤣
POV: you can both see the blue and yellow at the same brightness regardless of orientation
*I am several universes ahead of you*
We are the almighty powerful with our eyes
I am only one universe ahead of everyone. I can do this, but only for blue
I can see both and see which color is overlapping even if the image is blurry
02:00 seems like he himself made a phone stand
which alone would be a content for other DIY TH-camrs
While I didn't see the Brush, I did get the thought to turn my polarized sunglasses and WOW when it dimmed that white background (at around 45 degree tilt) I saw all the spots on my monitor!
Thanks for this new tech.
0:26 i dare him to say that again 5x fast😂😂
🤡
🤡
Me first seeing the polarizer in action: Wow, imagine if there was like something you can wear that would just block all the glares on screens
Me like a few seconds later when he gets to the phone: Crap I just accidentally reinvented sunglasses
i thought i couldn't see it, but i tred tilting my head in front of my monitor's white screen and then it popped out super clear :O
0:03: looks like VSauce
Hey everyone today I'm going to be
showing you something you cannot see.
I saw it.
I saw it 2
he will be
More “useless” info I can share with my friends when a situation comes up when my friends sunglasses don’t work and yes this will somehow happen 😃
Well, thanks to the "Hooded Claw" here you can now inform them when they are wearing sunglasses the wrong way although I thought there was only one way to wear any kind of glasses....
me finding out not everyone can see this:
visible confusion
I didn't not expect to see it myself with no filter!! So cool! I could only see one color at a time though, I had to focus on the color itself. It also would rotate opposite of the direction I would tilt my head. As I tilted right, it would tilt left.
He is the most underrated scientist in youtube!
I've been able to see this phenomenon for years. At first it freaked me out and I thought there was something wrong with my eyes and rushed to the eye doctor
What did the doc say
What did the eye doctor say? 🤓
@@wolfafterdark he never heard of it before and all was normal. Then I Googled it and found the answer
@@MichaelReznoR he said he had no idea what it is. But then I Googled it and found out
It's a little fainted but still visible.
If you tilt your computer screen (or your head) left or right you can see the blue getting bluer and the yellow getting yellower. pretty cool.
This was actually so cool. It's funny to me that we were seeing the brush the entire time you were describing it, we just didn't know what to look for and didn't realize it.
I remember seeing this when I was a kid
It was when I came inside, after playing in the snow, but the colors were different
I remember it being blue and pink; which kind of makes sense, thinking that yellow Easter egg dye comes from a tablet that looks red, because it's so condensed
Now I know what he's talking about. I see a few different colors after bleaching my eyes with bright white, particularly in the winter. Going inside everything turns pink, yellow, or blue
Oh…I’ve never seen anyone with a bear in their username, other than me. 👍🏽🌹
When I turn my sunglasses so that they're alligned with the axis they get dark, that's amazing!
I realized some time ago that when in darkness i see better not looking directly at stuff. Luckily videogames trained me to use a lot of my periferal vision.
same, when you look a little beside what you want to look at, the image is more clear
This always tripped me out when I was laying in bed. I’d see something clear as day in my peripheral vision, look over and not see it! Scared me when I was a kid.
You have better color vision in the center, and pay for it with less sensitivity (more cones vs more rods, can't remember which is which).
@@Milan_Openfeint Interesting. Never noticed it myself but makes sense.
we need a camera that automatically rotates a CPL based on what it sees millisecond to millisecond
I know I'm not the only one who thought he said "I'd like to thank Male Science for sponsoring this video", not mail. *looks at camera perturbedly*
It's actually not either (if in doubt, check the video description)
For me yellow is vertical here 5:35 and yellow is the brightest
Me not owning sunglasses: I’m sure it was cool :’)
You don't need sunglasses to see it. You need an ability to perceive polarization of light.
You can even look at the blue sky on sunny day (not with the sun in your field of view ofc:) and see this phenomena. If you don't you just don't have this "superpower" then. :P
i can see it completely and it is very bright
So was there anyone who DIDN'T see anything?
I saw it after I turned my screen brightness all the way down.
I saw...something. It could've been an afterimage though. An incredibly faint small yellow 'bow tie'.
(i hope it wasn't my imagination).
See what?
Actually had a really easy time with this one :)
Blue was horizontal, yellow was vertical, and the would each fade in an out, peaking as my head was perpendicular to the orbital
Opposite for me. Blue was vertical
I guess staring into the sun gave me a super power after all
i used to see this thing all the time back when i used to be really concerned with my visual disturbances, i thought that was just another one of them!!! i saw it every time i rotated my phone. this is super cool!!
Am I supposed to be able to see it good without that polarizer
Without polarizer - yes. Good - depends. I could only see it faintly appear when I tilted my head left and right, probably because my brain filters it out due to me spending so much time in front of a computer screen.
You only need the polarizer if you have a nice new phone with no access to normal LCD screens, or want to observe this while looking at a white wall.
Who wants more electromagnet and quantum locking content?
You do
I was looking at the white screen by holding it close to my eyes and suddenly a call came and I dropped my phone 😥
✈
I can see it, and that's honestly very cool.
Why did he suddenly have a british accent when he said "I had no idea, that is so cool" at 3:38. Anyone else getting that?
Him: so do you know that you can see pulvirized light
Also him later: i had no idea this is so cool
@brightblackhole OK, and?
@brightblackhole OK, And?
That's not right at all :) There's actually 3 directions it can be - up-down, left-right, which polarized filters rectify to... and then around... end up getting rectified to an up-down or left-right when filtered... that's why two filters together 90 degrees apart end up blocking it.
But - each layer of polarizer is a new interaction, and really a different photon is emitted from the far side - it's not that only some of them get emitted as the same... hence if you put a polarizer not 90 degrees between two that are 90 degrees you still end up with light going through... but 2 immediately 90 degree apart layers will block all so there's no possibility of retransmission. (sorry I had only made it to 0:50 before commenting)
When I was little, my dad would take us out on the boat or along the pier at the beach and let us use his polarized sunglasses to see the fish through the water. As a kid it was SO cool to feel like you had x-ray vision. We could dee the fish through the water clear as day, as if looking into an aquarium.