Seeing Light That No One Else Can See-Quantum Spy Glasses

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Follow me on Twitter: / theactionlabman
Facebook: / theactionlabrat
In this video I teach you about how polarizers work. I then show you how an LCD screen works and how you can use this information to make super-spy glasses that lets you see an image on a screen that just looks white to everyone else!
WARNING:
If you use the information from this video for your own projects then you assume complete responsibility for the results.
My Other Channel:
/ @actionlabshorts
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[@joshzwies3601]

"Light that does this and light that does this", so scientific.

[@drinkmilk380]

Too much light information

[@theabominabletrollman5763]

@@drinkmilk380 that was heavy info to take in

[@foodtheedible]

@@timno9804 r/woooosh

[@thechillcheetah]

@@timno9804, its a goddamn joke

[@samienr]

@@timno9804 the funny thing is, scientists don't refer to water as dihydrogen monoxide

[@abrea5063]

*Laughing at a white screen* "Mom comes in" : what happend to my son??

[@GCKteamKrispy]

Mom: Video games

[@angkm2233]

@@GCKteamKrispyyep it's videogame

[@amritmahotsav3378]

Mom I'm using white board... And i just cleared the screen

[@severec0bra672]

Yes not watching anything else. Mhm

[@damotoneko1500]

He's ascended above us a long time ago.

[@NoLifeLuckyoheywassup]

Real life incognito mode

[@sebastienc.6296]

😂

[@RtqoopbFl9WpIP9fULuihzt6Sk4t9u]

Noice

[@adriano_M06]

LOL that's was funny

[@JustDenzelJ]

Gimme some

[@luistheugliestdude1909]

1 year ago? Not yet 1k likes?

[@MammaOVlogs]

WOW! l have seen the light! love it!

[@amberlewisn9552]

Mom I'll need a bike,tell dad to get one pls.

[@thejesuschrist]

Holy mindblow! Super fascinating! Thank you for enlightening us. Science!!!!

[@shonakkhan9623]

Jesus Christ did i see u in Kurzgesagt?

[@MarkBackles]

Ever since i watch your videos, my brain is heavier than my head.

[@39_rezwansahan72]

How much ounce did it gain? 😷

[@Yamishl]

Yup

[@FatalNoogie]

Yes, but also, everyone’s brain changes all the time. We depend on its ability to change to do all kinds of things, like store new information and develop “muscle memory”. If a brain stopped changing, that would be cause for concern. :-/

[@greekfire7980]

Riskteven Brain tissue does :)

[@-Four-]

@@Riskteven dont be a smartass and just go with the joke for heavens sake

[@JuankQuinteroMejia]

6:09 OMG SOMEONE PLEASE MAKE A MEME OUT OF THIS🤣🤣🤣🤣

[@WayneCXT99]

When dad walks in the room Dad : "Why are you watching or staring at this bright white colour computer screen?" Me : "Dont disturb me dad Im doing something!"

[@Laughing_Cat_Meme]

I have a meme but I am lazy to type it😬

[@khunagnes1364]

6:12 actually

[@QVZ]

609

[@BespinGuard1]

Good format potential

[@LocoFaux]

I have a Sony Bravia 4K 3D tv that makes use of this. You can have 2 people wearing polarizing glasses and have each person viewing a different video while looking at the same screen. Great for fps gaming when you want to sit next to your friend but don't want anyone spying on your screen. I never knew how it worked but now I do.

[@susanhuyser7280]

what type of tv pls tell me i wana watch '''it''''

[@tomasgarza1249]

But you can cheat by turning your head sideways :P

[@thecaptainnoodles]

that isn;t how it works is it?

[@hmmmtietmetmosterd]

Only if the glasses are turned in 90⁰

[@hmmmtietmetmosterd]

@Takahashi Shimo Mo no

[@ThePrufessa]

This just might be THEE coolest demonstration I've yet to see on this channel. I think all of your demonstrations of how light works are the best ones because of how confusing and difficult it is to study the properties of color and light. There isn't a better demonstration out there that will show how horizontal and vertical light works.

[@ToxaL0w]

Tomorow at the News: 200 5 years old destroyed their monitor xD

[@BossOfAllTrades]

Toxic Tonic what

[@sarielreigns777]

Pretty well today is the era of LED Monitors and not "LCDs"

[@codebulletin]

@@sarielreigns777 they also use it

[@dbtest117]

Sigh, ignorants. Led is a light source for a screen and if you dont have an *oled chances are is that it is an LCD.

[@cybertronex9660]

200 likes what type of shit is this😵

[@Quaz-jinx]

You: Now you can watch cat videos at work Boss: Um... sir, why are you laughing at a white screen?

[@buzzrunner4686]

Can you explain why neon colors seem to glow

[@PandaFPV]

buzz runner isn’t it because there’s gas inside with electricity running through it.

[@interestcrafting5703]

if you're talking about the signs, see above. If you're talking about the neon dyes that are in neon clothing, it's because they reflect the invisible UV rays into the visible spectrum.

[@FiercePotato]

ACAB\\ Mela BAKAta yeah these are called fluorescent dye’s, they use fluorescence in order to make colours look brighter by absorbing UV rays and re-emitting them as light instantly, making it look brighter

[@theblackreaper4395]

As I always say, the most legit Science Channel on Yt..

[@ajaykandhari]

Imagine using devices at public places like this.

[@JacsSacs]

Ajay kandhari I tried to wipe away your profile thinking it was hair! 😂😂😂

[@sappireflames0009]

@@JacsSacs me too haha

[@AngelitoCO]

I though you profile Pic was hair... That is awesome... I feel dumb now

[@pugmaster7757]

AngelitoCO me too! 😂

[@sirgeorgioalastrata4104]

Me too!

[@adamwigley9738]

Technically the video should be named. "Seeing half the amount of light everyone else can see"

[@semihozen238]

Underrated comment.

[@mhm1133]

Next video: *Finding out if circles have corners*

[@deepaklakhwan9067]

Jojo reference

[@davis4555]

Ah! A cultured BKFC fan!

[@LudwigvanBeethoven2]

"So now you can watch cat videos all day at work if you want" Family friendly content :)

[@soldierscaptain6026]

Emphasis on "cat"

[@purpl3grape]

Boss: Is staring at the blank screen the best use of your time here at this company? See me in my office in 15 minutes.

[@woutvandesompele8310]

@@purpl3grape 😂😂😂😂

[@Ing_Failure]

Yea.. Cats.. 😅🤣🤣

[@Xeylo]

family friendly and not safe for work at the same time

[@vinnaragget4820]

5:53 I feel like you could you do good dope puzzle room out of this

[@p.as.in.pterodactyl1024]

"And this should be weird to you" I love it when you introduce a concept that is counterintuitive and walk us through why it's that way, but more than that I love the particular word choice "this should be weird to you," it's great.

[@kumarrohit8311]

Just Wow! The explanation was just amazing! 👍🏻 The best thing about your videos is they always deliver what they say in their title! No click baits! 😃

[@kenzosteinmetz5661]

Yeah right, cat videos...

[@CoolBird69]

cat/pussy

[@bassel5280]

Dirty mind😂😂

[@benjaminmoszkowicz8149]

Pornhub*

[@gabriellalarson333]

OMG I THOUGHT THAT, LMFAO

[@the_danksmith134]

Yeah i can watch some kittys on you......😂😂😂😂

[@sanjeevikumar2483]

Spy glass in action lab worth destroying a monitor.

[@glitchy_weasel]

What about shining the brightest flashlight or the 5W laser through polarizers?

[@similarsquid]

Sounds good :3

[@levitheentity4000]

We could make a religion out of this

[@khaledassaf6356]

I have been using polarizer filters for my photography, and now I fully understand how it works. Great video!

[@Grim_Beard]

I've always had trouble getting my head around the polarisation of light effect you show in the first half of this video - but then at 2:37 you made it finally click for me! The light *doesn't* 'go through' the filter (even though effectively it does, and we refer to it that way), it is _absorbed_ by the filter and then _emitted_ from the other side. Score a science win for the Action Lab! :-)

[@hqcart1]

Does this mean that BLACK SCREEN SAVERS do not really save any electricity???????????????

[@TheActionLab]

Correct

[@hqcart1]

@Kronocide OLED does not always emit light?

[@mantas9259]

@@hqcart1 oled screens - each pixel has a light source instead of a single back lit panel which is always on. So technically black area is actually turned off pixels instead of blocked light

[@user-iu1xg6jv6e]

I believe The original purpose of a screen savers was to prevent burn-in.

[@lollipopyummy1389]

hq cart depends on the screen type, if your screen is lcd so no, no power saving, watch android authority's lcd vs led vid

[@Smeggit7]

The next day at work: Boss "Why are you destroying company property?" Me "It's OK, The Action Lab said I could do this..."

[@JOELwindows7]

TL DR *Polarisation* Will watch to full asap. 0:48 Showing newbie polarization without technical term. 5:59 Then it also *not head tilt friendly.* 6:18 *Tiger Production*

[@Cryfails]

I remember seeing this a done a few years ago. I'm glad that your doing these experiments teaching people new things. Good job!

[@XodiasRX]

mwalsher He didn’t literally mean it was a new thing, it’s just new to the people who haven’t learned about it.

[@Cryfails]

@@XodiasRX Thank you! At least you understood what I mean.

[@udaytodi5422]

You look awesome in that spy glasses!!

[@AlexanderCheong]

Never fail to impress me with your new science videos. Thank you ActionLab 👍

[@ToxicMrSmith]

That is cool. First time I've been genuinely impressed in a long time.

[@juan.s]

“Light that does this and light that does this” lmao

[@user-wr2uy9pj4m]

Wow!!! How cool is that!!!

[@contagiousingenuityagency5273]

שלום רפאל, נחמד לראות אדם יהודי בתגובות

[@rysea9855]

Actually the monitor still produces heat. So it's not really that cool.

[@MrJleonp]

Holy cow!

[@timcrook5569]

Dude! I knew about this thingy when i was about 12 years old.... There were some guys talking about that part of the screen to be planted in glasses.. So that you could do your own job without being seen... You gave it life to it..... I WANT MY PHONE TO BE LIKE DAT

[@Aero_CKD]

Daaaang, that is some awesome stuff! I always wondered how monitors and screens worked, thanks for the cool info! I always enjoy seeing your content.^^

[@joelstock94]

This is actually so cool!

[@thehypertrophyscientist4348]

Yours is the most interesting science channel, always cool concepts

[@viri7067]

I love your vids! They are so fun to watch, and thanks for not being one of those types of utubers that say every scientific word there is, instead you make it easy to understand! Thx for inspiring me with all this science 😊💕

[@orangehatmusic225]

I am glad you picked up on my comments about Quantumness of things!

[@grahampawar]

Hmm...now I can watch "it" without getting caught! 😛😂

[@GauravSingh-xj6dv]

Tharki

[@michaelscardino8614]

@@thatfuckerwhossleepy2696 but to what is his point

[@Elite_Kamayuk]

By it, do you mean action lab videos? XD

[@MaksKCS]

@@Elite_Kamayuk he means pron with the r and o switched

[@NiceEyeballs]

what if some is at the back watching the monitor through my glasses at an angle.

[@RajuyCh-ug9ok]

40 years later your grandson looking at the white display And you should warn him that his dad too know that

[@RajuyCh-ug9ok]

@Lucas Røygaard Really?! Thank you man !

[@royalrubalcava]

Make a spy glasses for your self and then secretly go into his room and you can also know

[@ExperimentoLOGY.]

This is like having earphones, but for your eyes, "eyephones".

[@catherinehupfeld1067]

I am a new subscriber from April and Davey's Channel, can't wait to watch your vlogs and videos and get to know you and learn about science through your vlogs/videos

[@BespinGuard1]

Just imagining me doing this at home and my parents calling physiatrists

[@seanleith5312]

How light even know which direction is vertical? It knows gravity? It doesn't make sense.

[@d.l.7416]

@Sean Leith There is light polarised in lots of different directions, not just vertical and horizontal. The video doesn't explain it great tho. also 3blue1brown and minute physics did some videos that explain the weird 3rd filter thing.

[@seanleith5312]

@@d.l.7416 Thanks. You are right.

[@quahntasy]

Now we can all watch 'it' without getting caught.

[@tanmaygarg6550]

😂😂

[@jeffkaplan7669]

Nice original comment

[@epikdisko]

Kinky

[@drenationvevo8922]

THE EMOJI MOVIE? IT THAT 'IT'

[@mannyheffley9551]

You are everywhere for me

[@Arkeze]

This video is so underrated! This is the coolest thing I’ve seen in along time!

[@ironwill3258]

Legitimately the coolest thing I’ve seen all year!

[@lebanemcarl68]

Okay, this is epic

[@LightningShiva1]

*Have a good day!*

[@lichh64]

What I like about you is that you don't take 2 weeks to upload a video so keep it up

[@pokerfacemusic6969]

This, is one of the best videos I've watched recently!

[@mid-]

THIS IS GREAT FOR PRONHU..... HOMEWORK

[@JNX_.]

Drinipro it’s pronhop

[@nikitapoletaev905]

Adrian Suriel No its pringle

[@supersayinwaver8848]

Lol

[@zainekatsumi]

Oh damn. The prongo lovers😂

[@ThuNguyen-jy2jt]

I heard the three polarizers paradox is called “Bell’s theorem”

[@jamienelson3470]

Wow, your videos are endlessly fascinating. Thank you!

[@Ewecnt]

Very nice way of describing polarisation for all to understand.

[@werpydoom9690]

ok i like this, even you make video like this. and i will try like this.

[@mr.vivachious1855]

Awesome

[@ploperdung]

U explained this really well good job

[@oscar3611]

This was actually very nice to learn. I had no idea. Thx!

[@DreadTeamLeader]

Now rebel can animate in public with no one knowing that he is the best :D

[@smnaazil]

I did it with my old desktop. It worked.

[@samhatun]

Learning that was the coolest thing. Thank you action lab 👍

[@JMan377]

Dude, you need your own tv show. You're awesome and easy to explain things

[@T.A.S.L]

I got a question, does this affect the image quality and resolution in any way?

[@youtubeaccount5421]

Yes

[@derekmcdaniel6029]

From the beginning of the video, it's not clear to me, are all possible polarizations of light linear combinations of vertically and horizontally polarized light? I expect there is nothing special about the horizontal or vertical orientations, and those are just used as basis vectors, for example you could also have the polarity along diagonals. Am i understanding this correctly? Also, It's unclear to me how a rotating polarization would come about from combining vertical or horizontally polarized light.

[@kenlogsdon7095]

Circular polarization is created by combining a source of EM radiation with a 90 degree phase shifted version of itself.

[@TheActionLab]

Yes, basically linearly polarized light is in a superposition of right and left circularly polarized light and circularly polarized light is in a superposition of linearly polarized light.

[@derekmcdaniel6029]

@@TheActionLab thanks. that makes sense.

[@DANGJOS]

@@kenlogsdon7095 What you said isn't complete. The two polarizations have to be at 90 degrees to each other, as well as phase shifted by 90 degrees.

[@kenlogsdon7095]

@@DANGJOS - Yes, you're right, of course. Doesn't work very well otherwise, LOL!

[@granfabrica]

Scotch Invisible Tape holding the filters on your glasses is a magnificent touch

[@bassam_salim]

One of the most mind blowing videos you have ever made! Nice keyboard btw

[@bungwohlio]

Nice gaming keyboard.

[@dacoconutnut9503]

_Jack O'Lantern, is that you the light in the end of the tunnel?_

[@nobody-nj4jg]

That's awesome. Love your videos.

[@jj_...]

I think IMAX, and maybe some other 3D movie theaters, might have the polarization in each lens of their 3D glasses oriented 90 degrees from each other, so they can project both polarizations on to the screen, but each side blocks about half. Also, I have heard about taking the polarizer off of a display and causing you to see only a white screen a couple of years ago. It's pretty cool to actually see it - and I'm not counting those commercials about that one brand of sunglasses!

[@ojaschopra5437]

Watched so early that it was private😂

[@leonathor4005]

Nani

[@erendripaeger9875]

Omayva mou shinderu

[@TheFutureCreator]

First, Love you bro please make more videos.like this one 👍👍💋

[@Allocution_TK]

What's the second part of the message? Because you're not even close to first comment.

[@Allocution_TK]

@@TheFutureCreator Makes perfect sense

[@breakingbad3282]

Indian?

[@Allocution_TK]

@@breakingbad3282 maybe

[@breakingbad3282]

He is an indian

[@paulozhang9346]

This is awesome! Thank you guys!

[@mohamedsalim8544]

Thanks for the explanation!

[@silly7eraph]

I saw this like 5 years ago lol

[@exactden9149]

Same

[@-Four-]

I saw this 0 seconds ago

[@mikalgee6012]

Oh thank god I thought I was going crazy

[@purnadika]

Back then, I almost did this to my monitor, but I don't have much money to get another one lol

[@ivanmataija1623]

Deja vu

[@AHKhan-iw7um]

Zabardast !!📣👍👍

[@xana_12k_de_rv18]

Awesome experiment man

[@therealshezlock]

Brilliant! Just splendid!!!!!!!!!

[@user-iu1xg6jv6e]

If blocks all light, why isn't "blackest" black? What happens if you put polarizes on top of the flash?

[@hello_2632]

Not all of the light you see is passing through the filter.

[@rahulmaurya3886]

coz some light escapes due to reflection (I guess)

[@CanisterA.D]

Because black reflects light from surroundings

[@paradox9265]

My thoughts were because of the circular light that may be passing through

[@CanisterA.D]

@@paradox9265 well, thats a good idea, but he said it can only be compose of two lights patterns. Either of three.

[@dp0004]

The physics you display always interests me. I continue to want to watch again. Thanks

[@richardgordon]

One of my favourite channels. I learn all kinds of crazy stuff!

[@rippertrain]

Im too old for this...great vid thumbs up

[@argonxenon6839]

Yes, but what happen if you tilt your head while you have the "spy glasses"? :)

[@mrchicken15]

6:15 or something els...

[@matthijsskwint]

Haha idd

[@CoectSolutions]

lol

[@singhanmolpreet5935]

Yikes

[@Gabe-cobalt]

Porn

[@deluxeassortment]

You should see what polarized light waves REALLY look like. It's far cooler than just perpendicular waves. I saw it once in a condensate experiment, and it blew my mind.

[@jamieplayz3404]

Oh my gosh this is so mindblowingly cool 😮

[@TimothyMichaels]

Is this the type of glasses Roddy Piper wore in the movie "They Live?" 🕶️👓

[@visi2tirana]

Was thinking the same

[@mobeen360]

I got polarizer from an old calculator screen but it is not enough for making glasses

[@TechNextLetsGo]

You can literally buy polarized sunglasses at any gas station or like Walmart. Or just keep the ones from a 3D movie.

[@erdemnyc]

Very cool. Thank you for the video.

[@YossiSirote]

Classic. Well explained.

[@kaydubstep9010]

First comment. I love the action lab!

[@Allocution_TK]

You're 9th comment actually

[@Allocution_TK]

@help. Yes i do. Just to ruin people's days because the whole "First" thing is stupid.

[@Allocution_TK]

@help. My favorite thing to do is to actually be the first one on videos and NOT say first. Instead, i'll usually opt for "Nice" because i love seeing people get butthurt when the first comment doesn't even say First

[@Allocution_TK]

@help. NNNiiiiiCCCeeeRRRRuuuu

[@james-ox5le]

What a long conversation

[@kaydubstep9010]

Yay

[@TheActionLab]

Yay!

[@shade6735]

edit comment to 1st cuz you are indeed first

[@joelamberti1683]

Lol wattt

[@sdmayday]

Genious! A new way to enjoy unapropriate content at work! :D

[@Shivam-kz2dg]

That was just awesome man .....!!!!!!!!

[@shaggygaming4612]

Action lab fact #1: Action lab can see light that no one else can see!

[@cs188creations]

New drinking game: Take a shot every time he says "this" or "like this". 😆

[@trashcaster]

Or blinks

[@kadmosdraws2163]

Or breathes

[@pichaplays8225]

O

[@pichaplays8225]

Or changes sense

[@hanter765]

cs188creations if we have to take a shot when he says "this" and "like this" does that mean we must take 2 shots when he says "like this" because he says "this" in it

[@Arkadix11]

So simple, yet amazing :)

[@noah2451]

this is actually really cool