A Real Invisibility Shield | How Does It Work?

[@Nighthawkinlight]

Hi everyone, if you're new to my channel my name is Ben. I read all of your comments and reply to as many as I can. While you're here you may be interested in some of my other videos, like this one where I re-invent a lost supermaterial 'Starlite': kzbin.info/www/bejne/l6K1ZZKLpKd8sLs Or maybe this video where I speak with a retired aerospace engineer that has turned his expertise toward making incredible backyard rollercoasters: kzbin.info/www/bejne/iaTVl3WujL6rhbM How about running a gasoline engine on firewood? I've got a video on that too: kzbin.info/www/bejne/a2OVc5SugpV9pM0 Thanks for stopping by! Leave me some comments. I'd love to hear from you.

[@grantmccollum4499]

NightHawkInLight The interaction with your subscribers is appreciated. A lot of channels don’t do that.

[@strangeke7750]

How is this not a close proximity spy drone. Basically invisible.

[@yonkromis7883]

Question about solar light will they focus the Sun's light in a hard sharp straight line as opposed to a round circle I'd appreciate if you could check that out and tell me

[@yonkromis7883]

I don't see the link on where to buy them

[@zac3392]

NightHawkInLight Just found u, love ur videos... reminds me of Smarter Every Day

[@Ididathing]

Can it hide all my problems in life?

[@spaghettiandmeatballs6471]

Depends on the orientation of the lens.

[@lucasklinkhamer4802]

Yes.

[@heavens.sorrow]

If you bury them deep enough you can hide them in anything.

[@SuiYo]

Hey I just watched your most recent video, and the one you made with William Osman, good shit

[@lucasklinkhamer4802]

@@SuiYo I was about to say that too 😂

[@doodamajiger]

So I decided to check out some of your older videos, and surprised to see that you’ve been making such great content for longer than 10 years. I think it’s incredible that still today you’re continuing to find inspiration for random (but interesting) things so frequently!

[@newchallenger9017]

“He’s using invisible technology, we can’t find him” Tilts head 90 degrees Ah there he is

[@mensch.meier.8816]

Can you hide NWO MERKEL and co?

[@nonchip]

nah you'd have to tilt the hidden person ;)

[@theeloquenteccentric8321]

Sorry but logically that won't make a difference. Its only if you tilt the shield that you will see the optically hidden object. Still a funny comment though.

[@theeloquenteccentric8321]

@@joebidenofficialpotus Well, then it the illusion is defused, I guess. But I don't think the military would make a shield so confusing for the wielder though. There is almost always only one comfortable way to wield something. Say, you don't point a gun at yourself or hold it upside down. Not only that, but it will probably be in the shape of a rectangle to hide the entire body; not a square or a circle. As such, it will be almost always necessary to hold it vertically to feel stable. In any case, that would be hilarious all the same.

[@nonchip]

@@theeloquenteccentric8321 i mean they do have "this end towards enemy" stickers, pretty sure they'll figure out shields :D

[@ChrisLocke1969]

My shower door's been doing pretty much the same for 30+ years

[@kr00m]

niiiiice

[@devinnoordenbos1922]

2_Face Unknown don’t you mean vertical?

[@jamesamores9611]

@@kr00m 4

[@dofehino5444]

@@devinnoordenbos1922 horizontal is for a good impression

[@rinaldykase]

@@2FaceTube damn you, i can't stop laughing

[@boozflooz6255]

invisibility has already been invented, we just can't see it

[@liljay8750]

Agree

[@richard_JT]

Witty

[@pratomoardianto336]

🤣

[@Rosye13106]

😂

[@nadamastodo9499]

Is magic ✌️👍✌️

[@gabedetter1570]

I figured there was a reason there always seemed to be some sort of parallel lines in the background of those clips

[@ClokworkGremlin]

Oh, that part was pretty obvious, the guy is fairly open about his "invisibility cloak" being a fresnel type lens and even includes some cross-sectional diagrams. What I *didn't* know was that they've been available for years. Which means he can't exactly be patenting it.

[@altersami9660]

@@ClokworkGremlin *laughs in US patent office* He most likely could. Solely based on the concept of using it for military/police use cases. But having the patent hold in a court case, that's a different story. Just because you get something patent, doesn't mean it's valid, both in the practical or legal sense.

[@Nostalgicinquisitor]

Bending the light !

[@muntee33]

Nostalgic inquisitor refracting

[@justsayin2085]

Soldier: They cant see me, Im a blur Enemies: Sir! there's a huge ass Blur square moving from left to right.

[@d.t.w1390]

Captain: that probably one of our dead soldier spirit

[@ryukikenshi5357]

enemies mayor: naaay..its just your gay mind talking

[@benjiebear6513]

Just let it go, it's only enemies who use the invisible shield!

[@MathewsSamla]

kkkkkkkkkkkk

[@bababooey5703]

He's in passive mode

[@Coeb005]

This lens used in toys too changing characters or image based on where you look or angle.

[@xenontesla122]

ibrahim s Yeah. They’re called lenticular lenses when used in 3D images: en.m.wikipedia.org/wiki/Lenticular_printing

[@brapamaldi]

surprised this wasnt mentioned as this is how i remember these lenses being used for almost 40 years, lol

[@90nobelscientistsbelievein97]

Can you please spell it for me what are those lens called?

[@CineSoar]

@Michael kilby You're going to have to back that up, since the patent for Lubor's lens trick specifies "providing a lenticular screen having a series of parallel lenticules".

[@CineSoar]

@Michael kilby You made the claim that the Lubor's lens is "completely different" than a lenticular lens, that it "operates on more dimensions" and "bares no comparison". I've cited the original patent application, which describes a parallel lenticular lens array. Now, you say "it would be easy to rebuttal [sic] the citations" and yet, here we are... no citations, no links to drawings, or credible descriptions of just how the lubor's lens differs 'completely' from a lenticular lens. That is what I meant, when I said, "You're going to have to back that up".

[@coolnegative]

Knowing that the pliers are there, I can see the reddish hue of the handles. If I didn't know they were there, I'd probably be blown away! Always look forward to your videos my friend. Always worth the wait! God bless.

[@JustinY.]

This just proves my theory that magic users in the past were just highly scientific people who figured out how to use the elements to their advantage

[@ephraimcullen]

That's why they say. "Magic is just technology we don't understand"

[@FJTHEGOON]

Justin stop it please

[@mutantkoffee]

Bro theres no such theory, and nothing new, search for some books, die hard magic its almost pure maths.

[@RCGrid]

Justin Y. I’m sure you were the only one with this theory

[@navidmehdi6]

just watch an anime called Dr Stone.

[@RPD___]

This dude looks 40 and 12 years old at the same time.

[@snarfsnarfff]

Your sentence reminded me of Tool, 46 and 2.

[@ikeyshuster9801]

Best thing I've ever heard lol

[@poncetorres7110]

😅👍🏻.

[@salg.5153]

He reminds me of a villain on Bonanza or some random western sitcom.😂😂😂

[@pablotapia2346]

😂🤣😂

[@Code-ff4fn]

This might sound stupid but in my head it works like the smudge tool on Photoshop when im trying to delete something from the image

[@kirkc9643]

This is the analog version

[@dantheman2907]

Not very well?

[@JNCressey]

Step 1: resize to 1x1080 Step 2: resisze back to 1920x1080

[@azz2]

Pretty good analogy. Essentially it is smearing everything horizontally. A good demonstration would be to have a wet painting with horizontal details and then wipe over it. All the original colour is there but only the horizontal details can be made out.

[@wonderworksbranson1758]

I've only seen this video by this creator and can already tell that he's a jewel of a human being. Very well done content, explained in a way that anyone can understand. Good jerb!

[@RolfRBakke]

You can also find these lenses in the back light path in LCD screens

[@KalRandom]

Cool that's exactly what I was wondering. Time to go digging in clutter, think I got 3 of them. Play time with grandkids.

[@jonpiotrowski3506]

Although I’ve only watched a dozen of your videos,your instructions,narration,and filming are clear,concise,and highly professional.You would be an asset to worldwide producers i.e. National Geographic,BBC,etc..

[@jonpiotrowski3506]

I highly recommend sending demos to any renowned company for potential employment.Yours remind me of the old “Wild America “series by Marty Stauffer,only with better video and narrative...

[@Advoko]

Fascinating! Thank you for the explanations!

[@sedevac8822]

i always wanted a explanation for that

[@alexbevan2183]

It makes it even more fascinating now that it’s been explained, it’s absolutely amazing

[@electronicsNmore]

Excellent as always. I could see a couple arguing, then one holds up a sheet and says, "Great, now I don't have to look at you!". 😂

[@Qwerasd]

When a grid's misaligned with another behind, that's a Moiré!

[@degenerategrappling6503]

Well done

[@MrBatbuddy]

LOL, That was Great!

[@RobertoOrtis]

Don't get it

[@azyfloof]

When the angle's just right and the spacing is tight, that's a Moiré!

[@mrkiky]

@@RobertoOrtis It's a reference to Dean Martin's song "That's Amore"

[@TechsScience]

After seeing it on Daily dose of internet i was wondering how it works you explained it well 😊

[@TheRealFOSFOR]

When I first saw the videos of the "magical invisibility shields", it didn't take long before I noticed they always used backgrounds with horizontal features... And I figured the "shield" only worked horizontally.

[@TheOzarkWizard]

It's been too long. Super happy you're back

[@davemcddd]

The REAL magic trick in this video is how he got the pliers to remain standing on the table after he removed the wooden support sticks. But seriously, nice video about the optics of a fresnel lens! I also learned that all these years I've been pronouncing fresnel wrong. (it's fray-NEL and not FREZ-nel)

[@mikeakers1209]

Super glue has many uses

[@juliangaribay4711]

Or the pliers are super squared off on the tip not really impressive

[@caterpillar6298]

Its called a nail

[@henrymostert2125]

If you were my science teacher in high school I might have gone into science. Really enjoyed your presentation

[@kr00m]

I remember these from the late 90’s CD covers and promo posters. A photoshop app slices two images to give the illusion of motion or transition to something else when the lens is applied.

[@chessboxtv]

It's just a real life rectangle of content aware fill

[@nadamastodo9499]

Is magic

[@grantmccollum4499]

That was really cool. First time I heard of and saw this lens demonstrated. Thanks 👍

[@dawnofjustice4689]

So impressive, that I bought two of them before the video was ended 😂 Thanks 👍

[@3d-printtaaja454]

4 here. At 10 seconds or so. I want to cover something from all 4 sides.

[@dawnofjustice4689]

Sounds interesting 😊

[@zeldasharpe131]

Hi Ben, you explained that so I could understand how that works. Not being a Physics person I had wondered about the material when I saw a guy making an invisibility shield in another video. But when you did yours with the pliers it worked better. So is smaller better in this respect.

[@joemck85]

It just seems like it's a massive horizontal blur, which tends to hide things because foreground elements like people tend to be vertical while landscape elements like hills and lakes tend to be horizontal.

[@kendokaaa]

I've heard of this elsewhere but I found your explanation on point

[@GeorgeDolbier]

I was once shown A great way to explain how these work. Lenticular lenses use a similar property as Fresnel lenses. A curved surface, glass or plastic, will bend light. Or more generally, light bends at the interface between to optical materials, Air and water, air and glass, air and plastic. This is how magnifying glasses, and camera lenses work. a typical camera lens is curved on one side and flat on the other. The bending occurs at the surface of the curve. any bulk between the flat part of the lens and the curved part is not necessary for the lensing effect. So if you slice a lens, in this case horizontally, into thin slices, you can remove all the material between the curved part and the flat part, then put them all the remaining parts back together. now you have a lens that has the same optical properties as the original bulky curved piece of glass/plastic, but in a nice, easy to manufacture, uniform width. This effect scales to very large, and very small, and also works with horizontal slices, vertical slices, circles (Fresnel), waves, random slices. This process can also be conducted on a prism, which could be thought of as a lens, only with flat surfaces. A prism bends light. Lenticular lenses can be thught of as the "flattening" of a prism in the same way a fresnel lens "flattens" a curved magnifying glass. This makes a lot of sense if you have a drawing of a magnifying lens from a side on view, act as an illustration.

[@Wik3dNuTS4k]

Holy fk im not reading all that

[@Porkey_Minch]

Maybe a visual demonstration of that is good for explaining the phenomenon, but as text it just sounds like mumbo jumbo.

[@davelowe1977]

Lupo Grigio Brilliant explanation!

[@TheBooklyBreakdown]

I read it, but the explanation itself he could have been better

[@davelowe1977]

MondoManDevout Not everything can be reduced to the simplicity of a colouring book.

[@MattSeremet]

i love how i have one of these for lenticular prints nearby and never knew of this trick. trying now it's working a charm!

[@deadturret4049]

And our next act on Penn and Teller's Fool Us...

[@badlandskid]

Awesome. Glass tanks are the future!

[@TheSurviver72]

Thank you for pronouncing 'Fresnel' correctly. 👍

[@kendokaaa]

Don't you just love when someone says freznel?

[@stevewalker9888]

Hi Ben. Newbie to your antics , just found you. . I have had several attempts at using the Ferrell lens with a led back light , by taking away the lcd screen (usually cracked making the tv useless) and using the left over parts to create what some people can’t understand as a 3D void affect , the sheets in using are regular tv sized. Also remove the leds from the tv as the voltage to run them are horrendous, and replace with 12v rgbw. They also make for an excellent daylight in dark corners of your home / hallway / staircase. And cheaper to run than a normal household bulb. Looking forward to more of your antics experiments funny thing 👍

[@ArcanisUrriah]

I remember people using larger ones similar to these to put in front of the TV to get a 'bigger' picture, back in the 70's

[@steamboatwillie8517]

And the ones with three coloured horizontal bands, blue top brown mid and green bottom type ones, to ' convert's a mono to a colour(ish) tv.... technology or what? Living the dream :0)

[@mrt5316]

Who else can’t wait for each new video. Love your channel man.

[@aserta]

I feel this could have applications in the marine environment.

[@cjonh808]

ok

[@cheekypasta55]

Not when sonar exists. This only works for bending light to cameras and the human eye. Radar and sonar won’t be affected by this at all.

[@Bourinos02]

But why though? Contact is made with radar since the brink of WWII, no-one uses optical ID anymore...

[@demodemo5146]

The Philadelphia experiment

[@DrewLSsix]

@@demodemo5146 that's not a thing, the story disproves itself.

[@TUCOtheratt]

Very good example of this technology.

[@RossTheRandom]

Well I'm disappointed. I placed one over my credit card... Still have debt. 😔

[@YellowOfTheTide]

Holy crap I haven't seen your videos in years I'm so glad to see you again

[@celivalg]

I could see these used in office vitrines, you just have to put a striped pattern on the back wall and boom, everyone inside is invisible

[@ArcanesWorld]

Thanks buddy you always give a practical and real world approach and explanation on what you do and breakdown, keep up the amazing work

[@justinhubbard7611]

Where can you find large versions of it? Like big enough to recreate the riot shield?

[@Pyromonkey360]

dismantle a 50'' tv, some have this sheet combined with a diffuser too

[@Aeder42]

This is very similar to how a cylinder lens (used to correct astigmatism) works. It refracts light in one direction but not the other. Like if you're looking through a clear water-filled bottle, you would see vertical objects behind the bottle relatively clearly, but horizontal objects appear very blurred.

[@Wanton110]

The Moore Ray effect can also make you feel eel

[@wdeltag]

I don't wanna feel any eel.

[@Christian1Aguayo]

Guy: *Demonstrates item* Guy: Now let me demonstrate item.

[@stillkickin3919]

That's amazing! I've never seen pliers stay up like that!

[@ruthannmarie7119]

Think they on a bolt, balance?

[@cking4869]

Alternate title: How to break the lighting engine | Glitch Showcase

[@Maikologi]

I can feel the noise its making as hes rubbing the lens against each other. We used to have a tv like that and my family would also mess with me by scratching the tv with their nails. It literally sends shivers down my spine and i dont know why lol

[@AtlasReburdened]

Problem is, you also can't see the enemy from behind it.

[@alext9067]

Yeah, that might be important. You could drill two eye-holes in it like the spies do with the newspaper in the lobby of the hotels.

[@TF2Scout_YT]

Unless you have heat vision glasses to see them from there temperature

[@tweakerkid]

Mount a camera on the front, easy

[@Drew791]

It’s Arabia Fats!

[@thugasaurusrex6004]

Sure you can, you just need to use a different light ;)

[@trevorjaster4072]

Ok so this vid seems like it is doing decent alot better than the rollercoaster one!!! I like to see this

[@Randomname183]

I was hoping his only explanation would be “it’s just magic” but no.

[@Voron_Aggrav]

any technology far enough advanced could be explained as magic, mean if you'd take someone from the 1400's to the modern day He'd exclaim witchcraft and magic from most of our modern comforts,

[@dashingquad]

Come ooooon, it's very simple the explanation

[@jonjohnson102]

Jfm

[@CreatorCade]

A Ludors lens even sounds like a magical D&D item +1 invisibility. 🤓

[@eggheadusa]

Mary Carrero Llovera Yeah we all seen Thor we know

[@Matthew-ju3nk]

PHEW! I’m glad it was just an invisibility cloak thingie... For a second there I thought that you’d lost a perfectly good set of pliers! Another very thought inspiring topic! Thank you!

[@maskednil]

My father left to buy a ludor lens. I'm still waiting for him. Sometimes I hear him though.

[@loveistruth5713]

Just a simple thank you for your explanation. It's nice to learn something new

[@redcastlefan]

First, Amazing video as always. Does the effect require that the thing you want to dissapear to be at a specific or optimal distance? Also since it's a prism based thing, does the type of lighting affect it? Would it still function if the light source was a single color?

[@Nighthawkinlight]

The further behind it you are the better. It should work the same under any lighting

[@redcastlefan]

@@Nighthawkinlight thank you for sharing.

[@savitrrakatamatah7256]

further is better but also it takes the side views from much further away which can be another problem in certain applications.

[@Handleyman]

I’m so pleased that you pronounced FRESNEL lens properly.

[@rockspoon6528]

I am a photonics student, so I worked out how it worked in the first 5 seconds. xD

[@jackenminecraft1152]

Congrats on being my 5000th liked video! I know it doesn't mean much, but that's pretty cool.

[@AndyCallaway]

There are two of them - one vertical, one horizontal, in most LCD screens.

[@raytracer9013]

In fact this is 2 polarizing filters and this is in all LCD, this is the way LCD works, the liquid crystals are between the filters and can "twist" the light to let it pass through.

[@AndyCallaway]

@@raytracer9013 Yep. Took one apart once. It was fun playing with the two polarizing filters. Cellophane between the two produces interesting effects.

[@anullhandle]

@@AndyCallaway you are looking at stress gradients in the plastic. Put a clear plastic fork between two polarizing sheets. The rainbow pattern makes the molded in stresses really stand out.

[@snorman1911]

Eh, polarizing filters are not the same as this.

[@AndyCallaway]

@@snorman1911 Understood. I know Ben was talking about the diffusers, but we went on to talk about all the different sheets of plastic inside an LCD screen.

[@massapower]

Better call Sheldon Cooper ! 😲 Definitely want this 😎👍🏻

[@CKOD]

I accidentally printed one of these on my 3d printer. I was printing with some clear PETG in the process of designing a lamp diffuser. With the 0.2mm lines running horizontally from each print layer, it made a single axis vertical diffuser. Nowhere near the same image quality, but thats fine for a diffuser.

[@kendokaaa]

I was looking for an excuse to buy some clear PETG, now I have one

[@anasmrright]

And now you can't see the lamp?

[@VoidHalo]

I noticed a really neat effect while I was playing with a 12in x 8in fresnel lens the other day. While I was trying to focus light from a lamp in my house at night onto the wall, I noticed at just the right angle and distance from the wall, it actually projected an inverted image of the room onto the wall. When I got it just right, the detail was really well defined, even though the image itself was only maybe 3in x 2in, it was just like looking at a little upside down picture. It was well defined enough that from 20 feet I could make out things like a light switch on the wall, or a wooden display case with everything in it, and even some 3in figures I had sitting on top of the case. It was so neat, I couldn't stop playing with it. When I tried doing it in a darkened room with the light from my TV. Focusing the light from my TV onto the wall. It projected a perfect image of whatever was on the TV onto the wall. And even the RGB LEDs in my computer next to the TV. Albeit much smaller and again, upside down. It even worked with a little 1in x 2in fresnel lens magnifying glass I had. Although not as well as the larger one. I'd definitely recommend trying this if you have one lying around your house. I picked up my 12in x 8in one at a surplus store being sold as a magnifier for reading. It's just a wobbly piece of plastic, so it's hard to keep it still. So I plan on building a wooden frame from it. You could probably buy one on Amazon or something. It's not quite strong enough to melt rocks with. But I did burn a nice sized black mark into my kitchen table with sunlight coming through the trees and into the window. lol

[@ThirstyCartoon]

Is this the same kind of tech that's used in that new ford "no trailer" backup cameras? Probably not, but I need to know how that works too!

[@robo08ify]

ThirstyCartoon That’s GMC, not Ford.

[@ivanleterror9158]

I believe that's a separate camera that mounts to the trailer. ????????

[@jermmcnasty420]

@@ivanleterror9158 its an array of cameras. The input from each one is blended on the screen to appear as if its all one image. Watching the image you can tell where they blend.

[@davestambaugh7282]

This principal is used with a micro flat to check for minute variations in flatness of a surface using a monochromatic light source.

[@Nighthawkinlight]

That's pretty clever. I'll have to look into that

[@WaltRBuck]

Don't tell flat earthers!

[@ericgillespie2812]

I want a genetically modified fish that has fernell lens for scales

[@ewthmatth]

That wouldn't do anything. Did you watch the video?

[@ericgillespie2812]

@@ewthmatth your imagination must be very unfun...

[@whoswho734]

Glass fish

[@korrokiaternak8655]

Transparent fish

[@morfeo7750]

there are actually some fish in the bottom of oceans that have translucent skin and some times you cannot see them...

[@gordogo]

old RVs used a fresnal lens to shrink the background and see more behind the Rv through a small window. One is in my 85 allegro gmc

[@lonestardude6283]

The real trick is how the pliers stayed standing up after removing the wood dowels that was holding them up!

[@malachifry3525]

It’s literally clamped on a nail

[@Wooble57]

@@malachifry3525 that type of plier doesn't lock. what your thinking is a nail is actually glue, from the grey color probably jb weld.

[@doctorgregg6847]

Oh yes! Another suculent video, hope you make It at large scale

[@twocvbloke]

You can get big versions of those Lubor's lenses out of LCD TVs, though don't expect to be able to rob a bank with them... :P

[@zazkegirotron]

AWESOMEEEEE! Thanks for always sharing cool quality videos! They are great :)

[@robj7481]

Almost looks like horizontal and vertical polarization, which is how modern 3D movies work.

[@SharpWorks]

Great explanation! Thorough but concise.

[@dilbotmacguillacutty4849]

The Romulans would like to have a word with you...

[@Nighthawkinlight]

Oh come on, that treaty doesn't come into effect for another few hundred years. I'm grandfathered in

[@eddavis91]

He'll yeah. Good one.

[@hanelyp1]

The Romulans have much better cloaking devices.

[@onionhead5780]

Touché my friend. 👍

[@VitoVeccia]

USS Pegasus.....

[@billybodacious2337]

We use fresnel tape in ophthalmology for people who have strabismus or neurological disorders that causes them to have double vision (diplopia). On a side note, the headlight projectors on my Infiniti G37 also use fresnel lenses.

[@Loqanmiqht]

Who else watching this through a late 90’s tv and just see a bunch of lines? 😂

[@notaprogrammer7970]

That's pretty impressive, how is your set up?

[@notaprogrammer7970]

You must have an HDMI to avg converter. Got it.

[@Loqanmiqht]

Y’all are stupid or just stupid 🤒

[@notaprogrammer7970]

@trandmain My my the low IQ zoomer has spoken, please further impress us with your critical thinking skills and masterful discernment. You probably have no clue what I am even talking about. I'm 27, and you are so stupid, you make a giraffe look smart.

[@ttv_neon7892]

Now imagine if it had a trillion dollar military budget

[@Acsion42]

It’s a cool effect but this use of it has severely limited applications. I don’t see how the police or military could use this effectively outside of fixed defenses in bases or cities. I’m sure that this weird phenomenon will eventually find a use, but it will probably in a totally unexpected way.

[@Corazon_Dorado]

0:44 look how happy he looks he truly loves this things i mean i would too... but he is exited to another lvl...

[@IGMSItoX]

I literally saw this thing in China when I was 11... Sometimes I feel like internet hypes everything up, no matter how old they are... And people go APESHIT over it... I really need to find something other than internet as my news source...

[@michaelqdlap]

When you were 11. So- 40 years ago, or...?

[@hyperiusnovani]

Does it matter if the thing being hyped up _is actually good_ and not many people know about it? Not to mention that this was an educational video. I don't know what you're thinking but I feel bad for you if you use _KZbin_ as a news source. This is a place for content, and if you want controversial news, this isn't the place to look for it. However, educational videos are something KZbin excels at, given that you're looking for something specific. The other thing is that you shouldn't do is compare KZbin to the _Internet_ . That's like comparing a nail to the factory. Hope you learned something from this, and I wish you a good day!

[@daphneblake7889]

Also used to create a type of changing image often used on toys or children's book covers. Held one way over a specially printed image, you see the first image, moved slightly and you see a second or even a 3rd image.

[@Christoph1990]

Is this in any way related to privacy smartphone display protectors?

[@martynfrench7187]

Great demonstration and explanation. Thanks

[@debojitrabha2502]

So that's what John Cena been using all this time.

[@jjm8678]

Flipping awesome man!!! Thank you so much for sharing! I'm really looking into that!

[@clivelambert-oe7kg]

we had that crap on are books at school like 6 years ago

[@francisbell1961]

Made Simple and well explained.

[@wolfthorn1]

I'm pretty sure all my clothes are made from this stuff. I can walk through a crowded room of girls and not a single one would notice me.

[@7curiogeo]

Thank you for the education on these lenses.

[@danbhakta]

Ha ha ha. I knew it was just a variation of a Fresnel lens.

[@Yonda2404]

Nice content dude, thank you for the information you gave

[@lemmingscanfly5]

You're starting to look like Les Claypool with the facial hair.

[@TomatoBreadOrgasm]

To defy the laws of tradition, he has had a highball with the devil and grown his own Del Davis Tree Farm. It's pudding time.

[@davidneilson3508]

Just wait until he busts out with Wynona’s got a big brown beaver 😬

[@chickenmonger123]

Primus sucks.

[@yourmama9674]

My name is muuuud

[@MinecraftEAT]

Maybe he is Mr. Oysterhead

[@jackbiles4525]

This is just 3M TRAF (transmissive right angle film), which has been on the market for decades. It has prisms that catch light from the side angles and directs it forward. It is always shown with horizontal objects to make it look like it works. Turn the plastic 90 degrees, and it fails big-time. A mirror, or white sheet, would work as well.

[@UserPauli2592]

Gonna use it on my car to avoid a ticket for speeding they will not see me coming

[@leon13noelspy]

When i remember right they are actually used in Lcd Monitors and Lcd Tv's to compensate for viewing angles. They are not in all of them but in alot

[@jamesoblivion]

Ah, listening to KZbinrs try to pronounce "moiré" never gets old. Dude said "moray." 😂