I show you how to make a device that bends light around a specific area in order to make it invisible!
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I honestly thought this was going to be a much more advanced device than it is. The illusion works and it may not be entirely impractical for certain static configurations.
Lol wait till you have a more advanced understanding of meta materials and pseudo/virtual materials
This is the story of your enslavement, are you aware? 👉The Connections (2021) [short documentary] 💖
Honestly thought it was gonna be a video on some high tech new thing and then he's like "it's mirrors!" And I was like oh lol
The simpliest answer is usually the correct answer.
@@815TypeSirius 🤣 there's no translate to english on whatever cryptic riddle this is meant to be. Can you define or link any of your conspiracy theory sounding responses to "the illusion works", or are we going to get a "wait and see" or "a friend of a guy I work with said"?
02:05 - It helps placing the camera far away not only because it makes it harder to notice the difference in the object size, but also it actually minimizes this difference, because the increased distance of light path going around the mirrors becomes a smaller percentage of the total distance from the camera to the object.
Best thing, it's not affected by picture angle either. It's just the difference in distance as percentage of total distance that matters. So a camera can be put far away, then use a narrow angle lens in to give the appearance of being close, while still having the same effect as being far away.
I thought that the difference in size was because the line of sight coming from our eyes is never parallel. If the observer is further, the line of sight becomes closer to parallel and the difference in size is smaller. I mean, if you have a beam of light that's exactly parallel, the distance wouldn't matter, it would have the same size regardless of the distance. Does it make sense?
@@Lucas-nf1uq No, it just has to do with the angles the light is coming into an eye or a camera lens. Things will look "smaller" if they are far away - regardless if you look with just one eye. Same thing for a camera. But if you campare 2 similar objects - one that's 2 m away and one that's just 1 meter away, the difference in "apparent size" will be quite big - but not so much if one is 19 m away and one 20 m away - despite the distance between the objects being 1 m in both cases. Even if you look thru a mirror reflecting objects behind you, not much will change as all relative angles are preserved even for reflected light. Same applies, even if the light bounces several times - the relative angles will not change as long as the mirrors are flat. If all relative angles are preserved, there will be no difference if light is coming from far away or if it takes a detour bouncing between mirrors. It's the length of the lights path that counts for how far away objects appear to be - and because of that, the longer light path will cause objects behind this mirror array to appear further away than they really are and thus look smaller. But the detour taken by the light is the same regardless of the distance to the fist mirror (that will be equivalent to the distance between the 2 objects in my fist example) - so if standing far away, the percentage of that "error" will go down. Even with a camera far away that used a telephoto lens that "error" will shrink with distance, because such a lens only makes the camera capture incoming light in a much narrower angle range (and thus can get much more detail within that range), but the relative angles between objects still doesn't change. That way, it's also possible to film with great detail and high resolution, while still make the error pretty much neglectable. The line of sight not being parallell affects our perception of depth (especially at short distances), since each eye will look at objects from a slightly different angle - just like having 2 cameras placed at a slight distance from each other. Our brain then interpret that as a single image with depth perception). But that doesn't matter very much here, since each eye is affected the same way. But that angle difference on the other hand, introduces an error at the edges of the mirror. That will also go down by distance.
@@Speeder84XL , thanks a lot for your patience. I was not referring about one or two eyes. I was just assuming that the apparent size is the angle we see an object, and the distance doesn't matter. Lets assume the object is 2 m tall. If it is 1 m away it will cover 90° of your vision (45° up and 45° down). If the same object is 2 m away it will cover 53,1° of your vision. If you double the distance the apparent size doesn't exactly divede by 2. If the distance is big I think the approximation is valid. The point I am trying to make is that our sigh of view is never parallel and that mirrors set works only for a parallel beam of light. Therefore there will always be a difference in the apparent size if we compare the object behind that "invisibility cloak". The difference in the apartment size will be smaller for larger distances, but the reason for that is the angle, not the "distance ratio".
@@Speeder84XL, I forgot to mention... In the video with the camera fixed at the same distance from the mirrors set... If we put an arm behind the mirrors, the arm will look smaller then it should. Lets say its thickness is the half. If we put a chopsticks behind the mirrors the difference will be smaller, may be just 0.75. I am just guessing numbers. But the idea is that for a smaller object the difference will be smaller because the angle is smaller too. But the distance continue to be the same. I couldn't explain very well, I hope you understand what I mean. I understood your point and it makes sense, but I think we should consider the angle. Thanks one more time :)
I really appreciate how your videos are always exactly as long as they need to be and you don't pad out with fluff
ngl i almost miss the 3-minute asides about BjorkeVPN
HOW CAN HE BAIT US SO HARD THO. OMG
YES! Very ADHD friendly. 😃
The irony of your comment is that he had wall pads behind him in this video. 😏
Thats one of the things I love this channel about the most! c:
We'd like to thank the Church for letting us use the cultural hall 😂
I saw that too!
😂 “just setting up for Activity Days”
This reminds me of that hyperstealth material made 3 years ago... While it isn't perfect as you can still see the blur behind the material since all it really does is scatter the light, it still makes objects practically invisible from a distance.
Isn't this something magicians have already had for like long time.... somebody left the magicians union and went to a college. The Magic Castle is going to be mad at them.
Haha, ya think James left the International Brotherhood of magicians in favor of Brigham Young University and the University of Rochester? 😁
@@HelloKittyFanMan. not necessarily Jimbo. But somebody at the University of Rochester
Magicians do use mirrors and mirror boxes all the time but I have not seen this specific setup before. I will comment that this mirror setup requires you to hide the excess mirrors so it may be a bit trickier to use.
@@westonding8953 they go out of their way not to reveal their tricks work also too.... I'm pretty sure I've seen this. I'm pretty sure I've even seen marked down versions of this on like tricks you can buy at magic shops.
@@westonding8953you can hide it with a plant or some table.
that’s crazy
that's crazy
that's crazy
Crazy? I was crazy once. They locked me in a room. A rubber room. A rubber room with rats. And rats make me crazy.
No, it's physics.
No. It’s not
Id recognize a room like that anywhere
Hah I hear you!
Dude, I just love that you include your family to your passion/hobby/job, and they seem to enjoy it. It adds so much more personality to a sometimes-difficult subject matter. Love the channel!!
Personally I don't think that's a good idea to expose your family on the internet. It has ruined many lives
It's not like he's following them around with a camera 24/7 documenting their lives, just quick cameos as assistants or helpers. Not the family drama types of channels. Relax@@sweetmelon3365
While anonymity exists and is still legal, the internet will still be a dangerous place
@@sweetmelon3365 well, doing it the right way proves NO HARM.
She's not part of his family. That's just a kid he abducted from the park.
Man I just wish it was physically possible to contain a cluster of light rays within a material, redirect/reflect them to the exact opposite side, and keep the exact same properties as they should've.
Predator
You can contain that cluster with your hands
Hear me out: tubes. I will not elaborate.
@@isokrahYou cannot It still gets through faster than you can even comprehend
Fiber optics
I'd love to see more detail on the setup and what it looks like as we start to see the effect while you are working to get things in place, etc.
Gotta love how these videos are short and straight to the point.
This is great. If you can figure out how to hide or soften the edges, this is magician-level art.
This must have been used by magicians a TON
Magicians do use mirrors and mirror boxes but this setup has a few inconveniences that have to be addressed.
EDIT: Oh my gosh, wait a minute, yes, I HAVE seen this style of building with the accordion doors in that orientation over the gym floor; I just remembered wrong for a second! What was I thinking? DUHH! Of course; I've even attended singles' ward meetings in them. We have one building in the area that I have been to some singles' activities at, that has these weird classrooms right off the sides of the rear stage that have accordion doors that open into the gym. I've never seen any other building like that one in Pleasant Grove.
Our meetinghouse growing up had that second set of accordion doors like in the video, but our current one has the second setup you mentioned with the classrooms on the side. Guess they changed the standard design at some point?
My building has the same cultural hall/gym accordion door.
@@garrettjensen5035: (EDIT: OOPS, see the ddit to my main post: I _have_ seen those accordion doors oriented this way.) Oh, they've changed the designs a lot over the decades. But here in Utah I've noticed quite a number of our buildings follow a handful of plans, but then I run into the occasional oddball. The Parleys Canyon building is very much of an oddball; it has all these little odd floor levels and landings, and this weird stake conference stage around the corner from the chapel, opening up into the side of the gym, with its own piano and electronic organ! Nice to see some other Church of Jesus Christ members replying to this, thanks! I think it's really fun that James here is a member with us!
@@Cyberguy42: Oh wait, yes, I HAVE seen these buildings! I was thinking of an older style building for some odd reason. Actually, yes, this is a very common design here in Utah. I don't know what I was thinking!
The amazing thing about this setup is how easy it is to make, IMO.
The simplest and yet the coolest trick I have seen in a long time. Thank you!
Your videos are always fascinating and well presented ❤
This could be a great way to explain how light bends around a black hole preventing us from seeing beyond it.
*allowing us to see beyond (behind) it.
Always learning something on this channel
I really homestly love that your vibe has always been.. Science teacher trying to be an influencer. Rather than influencer trying to be a science teacher. Big ditference.
I knew it was just mirrors the whole time, but I had no idea how it was done... and it is WAY MORE SIMPLE than I expected... PRETTY AWESOME MY DUDE!!!!
Wow I thoroughly enjoyed this video. Keep up the good work!
The video game "Perfect Dark" for the Nintendo 64 has an item called Cloaking Device, which allows the user to be almost invisible. It actually seems quite realistic, because it isn't perfect - it is possible to see very faint colour and shape distortions if you look directly at the user, and it deactivates for a few seconds whenever the user fires a weapon or performs some other dramatic action.
Lovely demonstration! Thanks.
I thought it had to do with lensing but this is cool too :D sometimes, the simplest method is the most effective
Love that you involve your family ! Great stuff !
Very simple but effective.
Best invisible thing I've ever seen.
Lol
Fascinating video as always
This is quite ingenious. I had thought mirrors but had no idea of the configuration needed.
Excellent awesome demonstration!!!
This is a pretty awesome breakdown of a trick I've read about stage magicians doing since at least the 1600s!
I didn’t even know he had a daughter. That is so wholesome. I hope she grows up to be as smart as him someday
The Action Lady
You're a genius! I'm impressed almost on every video!
Very Impressive! Thank you for the video 👍
The best shield that I've never seen! Good Job! 👍👍👍👍👍👍
Nice to see so happy team member 👍🏻
Awesome. Thank you, sir!
Neat demonstration and great assistant for the test.
I love this. Makes me remember you super-über black square, that reflected absolutely no light.
This channel is very unique in context of experimental physics 👍❤
This is really cool and I love the simple explanation about what's going on. One thing I would have liked to see is to move your hand forward or backwards into or out of the cloaked area. I'd be curious to see what that would look like. for instance, does the object fade in/out of view or does it abruptly get cut off. Would we see your arm, but not your hand? What would that look like? Cool stuff!
You can't do that laterally as you'd physically hit the mirror. It would cut out of sight abruptly if you were to come in at a downward angle.
I think this video is gonna blow up. ❤ amazing as always.
Oh man that was a short one but amazing. That’s very cool
This basically a magician’s trick, with slight of hand, and mirrors. It’s just being presented in a science context. But at least he has an adorable assistant/daughter to help with the demonstration.
The old saying “it’s all smoke and mirrors” I’m 50 and never saw this so plainly shown… thanks I really enjoy your channel. 👍🏻
Siege needs something like this similar to a deployable sheild but it pops out and u are only invisible from the middle but protects you from both sides, and the mirrors can be shot out to make it a normal sheild.
I thought at first that you actually got your hands in a metamaterial, but this is also cool
You say that the image is slightly smaller than it would have been without the mirrors. Well, what if one of the mirrors was slightly convex? Could that fix the problem?
Seems more like a magic trick than a cloaking device
If you grew up LDS you recognize a gym like this 😂😂 a bit nostalgic for me on that end but the science here is incredible and I will be trying it with my kids!!! Thank you!
Great!!!! Never imagined it!
I thought this was going to be the most exquisite form of lenticular lenses 3D printed, but yeah, it was too perfect for that.
Bro. It is so coolthat humans are capable of amazing stuff like this! This is inspiring. Also I knew something was odd with like 20% of the screen being blocked by a door/wall thing.
If you had a directional display that's also a directional light sensor (so they know/control the direction and intensity of the light on each pixel), then you could make the light virtually pass through you without any external mirrors like this. So like a surface that is a holographic display and a lightfield camera at the same time. I think there's already tanks that do something like this in IR.
"So like a surface that is a holographic display and a lightfield camera at the same time." The question is whether sufficient spatial and directional resolution can be achieved and with acceptably low latency.
@@Cyberguy42 With quantum computers advancing the way they currently are its more than possible.
Love your username! 😆
It's amazing, why didn't I think of it before. 😅 With this I can go to the next stage with my project.
Would it be possible to correct the sizing issue with concave or convex mirrors ? And is this only possible viewing from only one angle?
Thank you! Now I have a fun party trick I can set up. My only criticism is that I'd like to see examples of the mirrors arranged incorrectly. But that's for me to find out on my own while trying to recreate it! 😅😅
Man, it's like a freakin' magic trick!
You have the perfect stealth for the next churchball game 😉
The author of Tom&Jerry who has created an invisibility paint 50 years ago : amateurs
Wow! This is genius for a social media magic trick!
Crazy. Love it.
Thanks for explaining the one magic trick we got confused about as kids, but honestly I think it would be cooler with dramatic music and a mask.
adding this to the list of things i'll show to medieval people once I get a time machine
I love simple. Too cool!
Now the kid knows how dad used the invisible cloak in the past😂
so this is how those magic tricks are done!
That's why I subscribed to this channel ❤
The mini-version of this device could be made with a perfect mirror from one of previous videos.
Excellent video and mirror set up...very cool
Captain Disillusion is about to blow a gasket
All of the sudden, I really want to see a collaboration between action lab and captain disillusion
This is "amusement park" level invisibility.
Could you like focus the light into a smaller area and "move" the light like if it was a steel pipe so the whole thing is more compact?
Was hesitant to click on the thumbnail, I thought "it's just greenscreen" - but this is great, thanks!!! Maybe lenses too could fix the size problem.
Reminds me of a headless woman illusion that was doing the rounds in the 1960s. That used one pair of mirrors, arranged in a V, to conceal the woman's head and to reflect forward the sides of her cubicle, mimicking the backround.
Super easy and super effective!
I noticed that there were mirrors involved right from the start but I couldn't figure out how ... the sliding door covers the 2nd sets of mirrors in this video which is a really clever clue!
That was awesome!!!
Incredible, they managed to discover the magic trick mirror used in XVIII at the court of Leopold II 😁Kudos man 👍
I did a project very similar to this in my physics class. It was on a much smaller scale, though.
It's all just smoke and mirrors, without the smoke. 😂
I first saw this technology implemented as an invisibility cloak material in 1998. I found it from a random file I downloaded off of Limewire while trying to get music. It's was Hella dope af fr.
I immediately saw the angled mirrors, and I assumed there was another hiding. But it still looks really cool
Tried this at home with small mirrors. Had to use a shelf at eye level and stand way back. It worked, but the "smaller than it should be effect" is strong. You must have worked very hard to get it to work so well. It's a lot of fun, though.
You could use a lens/curved mirror to compensate the distancing effect, right?
Not perfectly. Even if you managed to turn the whole thing into a reflecting telescope, it's going to magnify everything by the same amount. That's a problem because things right behind the _cloak_ will normally look a bit small and need some magnification, while distant background objects will already look pretty normal, so magnification will make them look large. You couldn't tune it so objects look quite right no matter how far behind they are.
I new it!!! - recognize that cultural hall anywhere.. well there are many identical.. yet so specific... it feels like home.
This is simple and great
Lookin good!!
I like how the the magic is in the part you see, not what disappears
You need to use the highly reflective foldable mirror film you demonstrated in another video.
Ah yes, the LDS basketball court
I wonder if the size difference can be compensated by using slightly convex mirrors to magnify the image.
Since you said the "artifact" of the object looking smaller is due to lifht travelling, is it possible to jse the size of shortening to estimate speed of light, given that we know jow far apart are the mirrors?
Really cool effect
That’s pretty cool!
I don’t know why but the way he says mirrors is hilarious to me 😂 Mears
This is freaking dopee