Not Everyone Can See Haidinger's Brush—Can You?

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I show you how some people can see the direction of polarized light and show you how to see it.

[TheActionLab]

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.

[adb]

The Action Lab: "Not Everyone Can See Haidinger's Brush—Can You?"
Me: No, but I will blame my monitor.

[OC]

Me, on my phone: I'm sure that was cool.

[lbrown]

Me with macular albinism trying to see it.
Him: it occurs in the macula.
Me: Oh, well damn.

[fluffycritter]

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.

[cheezyskipper]

When I saw "Includes paid promotion" I started to pray for not being Raid Shadow Legends.

[GRBtutorials]

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).

[devraval]

The "hey everyone" never gets old

[NikkiTheViolist]

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.

[pratikpoudel]

What's amazing about him is he has very good knowledge of biology, chemistry & physics and he knows how to use them

[missaisohee]

Me, on my phone : is this how you feel when you don't get the joke that makes everyone laugh?

[bunthewiser]

I wish this started off with an explanation of what "Haidinger's Brush" is.

[HT]

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?!

[prathambhardwaj]

"that is so cool" "holy cow" can never get old

[Fadeddeath]

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!

[michahalczuk]

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.

[DendiAli]

thumbnail: "can you see this?"
people with High quality 8K Display : "yep clearly"

[TerryLawrence]

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.

[firedrive]

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.

[VirtualRiot]

Thank you for showing me how dirty my laptop screen really is