@bedevere007 This is stereoscopic 3D. Your glasses actually only let you see through one lens at a time, blacking one out while viewing through the other. At the same time your TV or monitor flashes a different image in sync with the glasses, showing you a different image through each eye. A normal monitor refreshes at 60Hz, to achieve the same smoothness with stereoscopic 3D you need 120Hz (60Hz per eye). Now I don't know the technicalities but this flashing of each lens requires power.
Why do I always see the image kinda blurry when the movie is in 3D? I don't men the image is out of focus. But not as crisp as in 2D. Anyone care to explain?
i think the red film goes to the blue eye, and what goes to the red eye is blue, because if you see something red when everything looks red, well, you don't realy see it... same for blue ;)
@ProfessorBorax Thanks for your comment. See discussion below re. your point. The red filter passes red light; the blue filter passes blue light. Search the comments below and/or Google "how 3D glasses really work World of Peter J Bentley". Note also that a diagram on the "How stuff works" webpages related to how 3D glasses work is incorrect - they show a red filter passing blue light.
I think I just felt in love with your teaching capacities! You make it easy to understand! Please do an hour video and please talk about 3D TV without glasses!!!
This is the the same technology used in the early 1900s. It's calleed stereoscopy. Where you have captured 2 images from two different angles. It was also used in World War II for piliots of airplanes or areoplanes (name depending on where you're from).
@Moriarty2112 Damn it. I thought I'd managed to get my head round it as well. Oh well, thanks! I'm overjoyed that you've replied, and I suppose now I'll have to grab a few of my friends and take them to the first 3D movie that I can convince them is worth it so I can get a pair.
Haha, that sounds fantastic. Sounds like my mum and your wife would have some common ground to laugh about, although I haven't quite gotten to the level of science experiments at bars yet :P
So I just spent some time waving my hands around try understand the mirror part as far as polarised light goes and how the sunglasses convert the polarisation. My mum thinks I've gone a bit crazy but whatever. I don't have any of these glasses but would I be right in saying if you pointed the ear rests towards the mirror, the opposite lens to the one you're looking through would appear black, the opposite to that which you showed in the video?
@MrJepcats Hi there. Delighted that you've thought about this but I'm going to be a little "evil" and not give you the answer yet. It's worth getting hold of a pair of the Real3D glasses and trying it for yourself. The answer you suggested isn't, I'm afraid, correct. (Sorry!). It's a rather more interesting effect...
@MrJepcats P.S. I spent an hour or so in a bar in San Francisco about a decade ago looking at (and photographing) the patterns made by beer foam on the side of a glass, to the intense embarrassment of my wife! She's now very used to my doing strange things like staring at random objects or trying out bizarre experiments on the kitchen table, so would sympathise with your mother...
Umm... it's the other way around, Phil... the red image goes to the blue filter and the blue image to the red filter. The red filter makes the red image invisible, which is why you see the blue image through it, and vice versa. :P
@TheFounderUtopia Hi there. Thanks for your comment but I beg to differ! A red filter does not block red light - it passes it. You're certainly not the first to suggest otherwise, however - see comments below (search for "Moriarty2112").
I find it very interesting that this comment/"correction" has been made so often. The red image does not pass through a blue filter. Google "3D glasses world of Peter J Bentley" for an excellent blog post on the physics.
If I am wrong I apologize sincerely, and thank you for correcting my misinformation! :) I will check out the post you suggested to confirm this to myself. I must say though this surprises me. If you were to write in red ink on paper then look at it through a red filter it will become almost impossible to read, right? Just like if you were reading it under a red light, the filter makes everything the same colour as the text. Amazing that this doesn't apply to cinema.
@TheFounderUtopia It's precisely the same effect - the physics isn't any different at the cinema! When you write in red on a piece of white paper, remember that the red filter will only let red through and will block other colours. The visibility of the red writing is a question of image contrast - not the removal of red wavelengths.
Again, Peter J Bentley's blog post describes this effect very well. I'll cut-and-paste the appropriate section into the next comment.
"OK, I did your experiment. Red written in red, blue written in blue. I look through a red filter and I see the word blue more clearly. This is because the blue text is now darker, the red text remains unaffected, and the white background has been filtered so that only the red frequency comes through. The red filter blocks the blue light, making the blue appear black. It lets the red light through unchanged. "
Thank you Phil, I read the blog already but now the information is at least visible to anyone else who reads my post. I understand now. I think the reason for my confusion is that I used to study photography, so I would spend a lot of time in a red room. I noticed quickly that red things would seem impossible to pick out under a red light, and when I mentioned it, one of my tutors mumbled something about 3D glasses, and I figured out how they work on my own later.
In hindsight it seems rather obvious now... of course a red filter only lets through red light, it's a red filter! LOL. Oh well, at least I can say I learned something new today. :P
@TheFounderUtopia Hi again. It's certainly a counter-intuitive effect. It's worth noting that the "How stuff works" website mentioned at the Peter J Bentley blog *still* (over three years later) hasn't corrected the image on their website showing red light passing through a blue filter and vice versa.
All the very best - been a pleasure exchanging comments with you.
but i still dont get it!, you say that the light in the room is not polarised as it is coming from all directions, yet you are able to polarise it by rotating the two parts of polaroid. i would have thought then that it would only polarise the light from one direction. if you are in a room with unpolarised light how come we can still see the effect?
The only question is that in 9:40-10:05 I though the glasses converted the circular polarasation to linear? How can it be still spinning after it goes through the glasses?
@seanki98 *Great* question. Here's an experiment to try. Take a pair of Real3D glasses and repeat the demo at the end of the video. Then turn the glasses around so that the ear rests are pointing towards the mirror. What happens?
Way cool! I figured the lenses were polarized but I never knew about circular polarization. Are regular polarized sunglasses circularly polarized or just Plain vanilla linearly polarized?
thanks for the nice explanation! this technology is also used in LCD screens to controll the brightness ^^ you have two filters arranged that no light will come through and a chemical which is able to twist polarised light..
@itsmanofpopsicle : The red image is seen through the red filter, while it blocks the blue(or more likely, the cyan/aqua) image, and the other way around for the the other filter.
Of course, saying something like "red filter" is a bit ambiguous, but in most cases where a visible color filter is referred to, the color indicates what the filter passes, not what it blocks, so that a "red filter" in normal use would be one that lets red light pass through it.
@TableWolfMusic well if you are asking if other electromagnetic waves can be polarised then yes. and also yes the tinted glass on microwave ovens have a metal mesh screen in the glass but the holes in the mesh are big enough that visible light still passes threw them
@Shangrily I'm aware they can be polarised, hence my example of the maser.
As for the holes in the metal mesh screen, does it really work like that? I honestly don't know. I wish I had a ISBN to check a quote from a book on this.
I'm with fruitlupes88, I've always been interested in physics, but not the mathematical side . . . Watching you're videos helps me understand the part that is interesting to me. Now, of course, I can go confuse my friends :)
If you gave such a general title, you have to tell at least one sentence about the active shutter 3D glasses too, because these two major type of 3D glasses are today.
@AxelLNo1 Hi there. If you scroll forward to the last ten seconds of the video I mention 3D TV (i.e. allude to active shutter glasses) but mention that it could be the subject of an entire other video. Our aim with SIxty Symbols is not to bombard the viewer with information but to put across some of the key principles.
@AxelLNo1 Yarrr.... there be two kinds of 3D glasses, but actually 3 kinds of 3D displays. Aside from polarized light and shuttering, there's also autostereoscopic displays as well that are found on a few tvs and the nintendo 3DS. And there be 2 kinds of autostereoscopic displays as well, lenticular lenses and parallax barrier displays. So it actually gets a bit complicated if you want to cover all the bases.
Wait...does this mena that actually it´s the projectors in the cinema that is working the most....they most be special right? to make the light go as wanted? :)
Love your videos they are awesome and easy to understand! I must say that this technology is preety simple but yet a litle complex :P But It´s so smart! :D
how come when i turn my 3d glasses to a certain angle with my computer screen on the other side, the light from the computer can't get through, although normal light can. why is that? it's a normal computer screen as far as i'm aware.
Dude, Brady, an idea: Duct tape two Go-Pros side by side, then duct tape that those to the top of your main camera. BAM Now you're filming in 3D and 2D at the same time.
@omrmtr With your left eye, you'll see everything, except your left eye, the same way you'd see everything else. With the right eye, you'll see everything, except your right eye, the same way you'd see everything else.
The previous statements are semi-true: "everything" doesn't include any other circularly polarized light ray, but it's unlikely you'll have any in the vicinity (except if someone else is trying the same thing on another mirror in the same room... ;-) )
I actually deal with Circularly Polarized antennas all the time, it's neat finding out that is circularly polarized, I use it for multipath rejection. You actually show a visual example of that when you held the glasses in front of the mirror, doesn't let the light, or in my case radio transmissions (same thing, lower freq), back through. Super neat, I'll have to show this to the people that work with these too.
@sabbah1337 AFAIK, it's cheaper to do it that way than the shutter method. That's why we have all the workstation monitors and televisions using that and then high-end projectors in our theaters. Normal "Real-D" glasses you get at the theater work on all of them but the screen in the biggest theater. That one uses a special Dolby projector that requires specific glasses.
What about LG Optimus 3D? its a smartphone witch shows a 3d picture but i didnt use a glasses and it still appeared with a depth perception i think thats how you call it. How they got to trick the brain without glasses??
@GloomY1HaveN There are several ways to do it. I'm not sure how the Optimus 3D does, but probably something like a lenticular lens layer combined with eye tracking. Each eye receives a different image, so your brain makes it 3D. Because there's a range where the illusion no longer works and the image brakes, you can only really get away with this on small devices. Anything bigger than an iPad is not going to look as good.
@Bazuzeus It is not that we do not know THAT it happens, but HOW it happens. Stop being a pretentious asshole, everyone has to learn sometime, just like you did not know once we do not know it right now.
You might be intrigued to know that our version of polarised 3d glasses was in fact in use during WW2!
We used to use them in conjunction with VERY precise recon photographers (flying modified spitfires of all things) in order to help find the V1 and V2 rocket plants.
They say without them we wouldn't of been able to recognise the vertical launch platforms for the rockets :)
@smeghead666 That's fascinating. I knew that polarisation was used from the early days of 3D "imagery" and movies (although this doesn't come across in the video) but didn't realise that polarised glasses were used in WW2. Thanks for posting!
I thank you for your reply! You're one of my favorite sixtysymbols Professors, I only wish I could have had someone as enthusiastic and passionate as yourself throughout my secondary school science years.
The whole deal with the 3D glasses and WW2 was called "Operation Crossbow" and t'was featured in a series of BBC documentaries on the war, a fascinating tale and well worth the watch.
What happens when you use a laser light by bouncing it of the mirror though the Polaroid opposites or the laser through the Polaroid with use of camera and the eyes view.
There is something else going on with the light when it goes through the lens of the camera, it is upside down and it digitizes it right side up. What true light are you really seeing? Is it the light that is upside down or right side up when it goes through the Polaroid and you vision it from the perspective of a cyclopes.
@sixtysymbols I have a suggestion for your next video. This is a question that's been bothering me for a long time now. Inside of stars fusion is taking place and during this process a small amount of matter is turned into energy and released. Well what happens next? What happens to the energy? Conservation of energy says that it doesn't just dissipate, but light dims over vast distances and we only feel heat from our sun and not the other stars as well.
@mynameismatt2010 I don't know if this will help. Think of an old-fashion balloon. The rubber is very thick before you blow it up. As you blow it up the rubber gets thinner and thinner, until it gets so thin it bursts. Energy released at the sun's surface is like the balloon before you blow it up, it's concentrated in a small place. As you go further from the sun's surface the energy spreads out just like the balloon so there is less energy at any point, results: dim light and no heat.
@mynameismatt2010 The energy does not disappear. Think of it as a balloon.
From the surface of the small, deflated balloon there is a thick red color, right?
All the light is emitted from the surface area right? This is why the color is so "thick" on our balloon when it is deflated.
When we travel away from it we have to fill it with air so that the balloon surface can reach us (Just like light travels, the balloon surface travel).
The energy is the same but the intensity (energy per area) varies.
If you would take the distance between earth and the star you measure and call that the radius, then you can calculate the surface area of that sphere.
4π r^2= Area If you would multiply that with the intensity measured from that star here on earth (ex. 1 watt/m2) you would get the same amount of energy that the star produces measured on its surface.
@mynameismatt2010 Simply put, the energy does not disappear. It is only the intensity that decreases.
Look up "Stefan-Boltzmann law" and search for some assignments you can do. Ex. use it to calculate distance and/or temperature of a star. If you want, I can give you some from my old physics books.
I have a question. When you say that light is a wave (I'm in the tenth grade and so I've studied this a bit), what exactly is waving? The electric field? Then how does it wave? What constitutes it exactly? I typed this in Google and I got something like vacuum waving and virtual particles and stuff. I don't really get it. Can you please explain this? Thanks!
@MrPokefan151 That's a **great** question that I'm afraid is not going to be answered in a 500 character comment. (It's also a remarkably perceptive question for a tenth grader to ask!) We should do a separate Sixty Symbols video on this topic - I'll see if Brady's interested.
@sixtysymbols i tried the "one eye" trick and it showed total darkness (as u said) until i tilted my head and it showed what's behind me in a red/pink tint??? EXPLAIN!!
@bbllqt219 It's interesting just how many people think that a red filter blocks red light. It doesn't - a red filter allows red light through and a blue filter allows blue light to pass. Google "How do 3D glasses really work". The first hit in the list should be a link to a blog called "The world of Peter J Bentley". This is an excellent explanation of how filters work in the context of 3D glasses.
@Moriarty2112 We see the red filter as red because it reflects the red light. Same for blue. So, in this case, the red filter allows the blue light to go through. At least that's what I was taught
@vilondero Sorry, but the red filter appears red because it transmits red light and blocks all other colours. What you were taught is incorrect, I'm afraid. A red filter does not transmit blue light. Google "Wavelength, Colours, FIlters". The first hit is a short and simple explanation (from the University of Leicester) of why a red filter transmits red light. See also my comments below about the "World of Peter J Bentley" website.
Go to the app store and download app trailers for free! Open it and click on the second video then enter the bonus code bookdays for a free $10 itunes gift code
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nothing explained at all.
partonace 1 day ago
"bazillion times a second.....to use a technical term"
TheTrueRandomness 2 days ago
Wow this is the first time ive seen who films all of these videos
Eringuy13 2 days ago
22 people have one eye...
THEABSENT 3 days ago
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BlackManSlim562 4 days ago
Awesome ! prof Moriarty is great
kraxzor 5 days ago
Awesome!! :D
Seanze329 5 days ago
...a murrur?...
skakid0 6 days ago
awesome video. Why does my Sony 3d glass need power?
bedevere007 6 days ago
@bedevere007 This is stereoscopic 3D. Your glasses actually only let you see through one lens at a time, blacking one out while viewing through the other. At the same time your TV or monitor flashes a different image in sync with the glasses, showing you a different image through each eye. A normal monitor refreshes at 60Hz, to achieve the same smoothness with stereoscopic 3D you need 120Hz (60Hz per eye). Now I don't know the technicalities but this flashing of each lens requires power.
mrrig91 2 days ago
you should do the no glasses required 3d tvs
4444jonn 6 days ago in playlist Uploaded videos
SOOO GOOOD! This was such a great video!
awesomejoe12 6 days ago
He's never done it in a sixty symbols video? So, he's done it off camera?
Juxtaroberto 6 days ago
Why do I always see the image kinda blurry when the movie is in 3D? I don't men the image is out of focus. But not as crisp as in 2D. Anyone care to explain?
Sunderas 6 days ago
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HALFxEATENxUMBRELLA 1 week ago
i think the red film goes to the blue eye, and what goes to the red eye is blue, because if you see something red when everything looks red, well, you don't realy see it... same for blue ;)
ProfessorBorax 1 week ago in playlist Uploaded videos
@ProfessorBorax Thanks for your comment. See discussion below re. your point. The red filter passes red light; the blue filter passes blue light. Search the comments below and/or Google "how 3D glasses really work World of Peter J Bentley". Note also that a diagram on the "How stuff works" webpages related to how 3D glasses work is incorrect - they show a red filter passing blue light.
Best wishes,
Philip
Moriarty2112 1 week ago
you sir... just gained yourself a subscriber
Rydaguy67 1 week ago
????????????????????...
xxGPExx818xx 1 week ago
I think I just felt in love with your teaching capacities! You make it easy to understand! Please do an hour video and please talk about 3D TV without glasses!!!
Marianela1983 1 week ago
wow haha . i love this dude , he explained well
deMithyX 1 week ago
HA! i heard that samsung and LG are working on 3D without glasses O.o explain that.
SuperJediPanda 1 week ago in playlist Uploaded videos
my mammoth has a pair of those!!!
CarpetDoctors1 1 week ago
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すごい動画発見したよっ♪
絶対みんなも見た方がいいですよ～っ♪♪
「一億円いらない」で検索してみてねっ(・∀・)ﾉ
世の中にはこんなことで悩んでる人もいるんですね！！
みんなも一度は見てくださいね☆
iajdiasia 1 week ago
Thanks a LOT!, I've always wonder this :).
Susfire 1 week ago
You know that you've watched enough science videos, if you get turned on by his illustration of the wave penetrating the polaroid filter.
MagnusBorregaard 1 week ago
This is the the same technology used in the early 1900s. It's calleed stereoscopy. Where you have captured 2 images from two different angles. It was also used in World War II for piliots of airplanes or areoplanes (name depending on where you're from).
jeoyanda 1 week ago
@jeoyanda its aeroplane not areoplane :)
nissimang14 1 week ago
Ah dangit I thought you were Michael from Vsauce
InsideDating 1 week ago 18
lol professor Moriarty when he puts the glasses on "BINGO"
danx033 1 week ago in playlist Uploaded videos
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この占いすごいんです！
私も実際にやってみて本当に参考になりました！！
「やこじ」で検索してみて☆
みんなもぜひやってみてください♪
uno0304 1 week ago
*pops off the plastic lenses*
*wears the frame*
instant hipster
miesrah12 1 week ago
I really like the videos and have been watching a lot of them; if you don't mind me asking though - how exactly does Sherlock survive?
:op
midnightmilo 1 week ago
When's the other day coming? ;)
Sunderas 2 weeks ago
that woulda been REEEAAAL awkward if someone was takin a dump in the bathroom when they filmed that lmao.
Spenny044 2 weeks ago in playlist Uploaded videos
@Moriarty2112 Damn it. I thought I'd managed to get my head round it as well. Oh well, thanks! I'm overjoyed that you've replied, and I suppose now I'll have to grab a few of my friends and take them to the first 3D movie that I can convince them is worth it so I can get a pair.
Haha, that sounds fantastic. Sounds like my mum and your wife would have some common ground to laugh about, although I haven't quite gotten to the level of science experiments at bars yet :P
MrJepcats 2 weeks ago
So I just spent some time waving my hands around try understand the mirror part as far as polarised light goes and how the sunglasses convert the polarisation. My mum thinks I've gone a bit crazy but whatever. I don't have any of these glasses but would I be right in saying if you pointed the ear rests towards the mirror, the opposite lens to the one you're looking through would appear black, the opposite to that which you showed in the video?
MrJepcats 2 weeks ago
@MrJepcats Hi there. Delighted that you've thought about this but I'm going to be a little "evil" and not give you the answer yet. It's worth getting hold of a pair of the Real3D glasses and trying it for yourself. The answer you suggested isn't, I'm afraid, correct. (Sorry!). It's a rather more interesting effect...
All the best,
Philip
Moriarty2112 2 weeks ago in playlist Uploaded videos
@MrJepcats P.S. I spent an hour or so in a bar in San Francisco about a decade ago looking at (and photographing) the patterns made by beer foam on the side of a glass, to the intense embarrassment of my wife! She's now very used to my doing strange things like staring at random objects or trying out bizarre experiments on the kitchen table, so would sympathise with your mother...
All the best,
Philip
Moriarty2112 2 weeks ago in playlist Uploaded videos
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05:02 OMG, did he just nearly say aether? :P I think someone needs an updated science textbook. XD
I'm just teasin.
TheFounderUtopia 2 weeks ago
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TheFounderUtopia 2 weeks ago
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TheFounderUtopia 2 weeks ago
i bet Phil was a looker when he was younger, ;)
jappafreak 2 weeks ago in playlist More videos from sixtysymbols
Umm... it's the other way around, Phil... the red image goes to the blue filter and the blue image to the red filter. The red filter makes the red image invisible, which is why you see the blue image through it, and vice versa. :P
TheFounderUtopia 2 weeks ago
@TheFounderUtopia Hi there. Thanks for your comment but I beg to differ! A red filter does not block red light - it passes it. You're certainly not the first to suggest otherwise, however - see comments below (search for "Moriarty2112").
I find it very interesting that this comment/"correction" has been made so often. The red image does not pass through a blue filter. Google "3D glasses world of Peter J Bentley" for an excellent blog post on the physics.
Best wishes,
Philip
Moriarty2112 2 weeks ago in playlist Uploaded videos
@Moriarty2112
If I am wrong I apologize sincerely, and thank you for correcting my misinformation! :) I will check out the post you suggested to confirm this to myself. I must say though this surprises me. If you were to write in red ink on paper then look at it through a red filter it will become almost impossible to read, right? Just like if you were reading it under a red light, the filter makes everything the same colour as the text. Amazing that this doesn't apply to cinema.
TheFounderUtopia 2 weeks ago
@TheFounderUtopia It's precisely the same effect - the physics isn't any different at the cinema! When you write in red on a piece of white paper, remember that the red filter will only let red through and will block other colours. The visibility of the red writing is a question of image contrast - not the removal of red wavelengths.
Again, Peter J Bentley's blog post describes this effect very well. I'll cut-and-paste the appropriate section into the next comment.
Philip
contd...
Moriarty2112 2 weeks ago in playlist Uploaded videos
@TheFounderUtopia
...contd.
From "World of Peter J Bentley":
"OK, I did your experiment. Red written in red, blue written in blue. I look through a red filter and I see the word blue more clearly. This is because the blue text is now darker, the red text remains unaffected, and the white background has been filtered so that only the red frequency comes through. The red filter blocks the blue light, making the blue appear black. It lets the red light through unchanged. "
Philip
Moriarty2112 2 weeks ago in playlist Uploaded videos
@Moriarty2112
Thank you Phil, I read the blog already but now the information is at least visible to anyone else who reads my post. I understand now. I think the reason for my confusion is that I used to study photography, so I would spend a lot of time in a red room. I noticed quickly that red things would seem impossible to pick out under a red light, and when I mentioned it, one of my tutors mumbled something about 3D glasses, and I figured out how they work on my own later.
TheFounderUtopia 2 weeks ago
*dark room
TheFounderUtopia 2 weeks ago
In hindsight it seems rather obvious now... of course a red filter only lets through red light, it's a red filter! LOL. Oh well, at least I can say I learned something new today. :P
TheFounderUtopia 2 weeks ago
@TheFounderUtopia Hi again. It's certainly a counter-intuitive effect. It's worth noting that the "How stuff works" website mentioned at the Peter J Bentley blog *still* (over three years later) hasn't corrected the image on their website showing red light passing through a blue filter and vice versa.
All the very best - been a pleasure exchanging comments with you.
Philip
Moriarty2112 2 weeks ago in playlist Uploaded videos
@Moriarty2112
Likewise, I have huge respect for you and your videos, I hope to discuss weightier matters with you some day. :) Take care.
TheFounderUtopia 2 weeks ago
but i still dont get it!, you say that the light in the room is not polarised as it is coming from all directions, yet you are able to polarise it by rotating the two parts of polaroid. i would have thought then that it would only polarise the light from one direction. if you are in a room with unpolarised light how come we can still see the effect?
Dombowerphoto 2 weeks ago in playlist Uploaded videos
The guy looks like an older Vsauce?
Aliggan42 2 weeks ago
I love Moriarty's energy and enthusiasm!
Timei 2 weeks ago
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すごい動画を発見しました～♪♪
一億円くれるとか、ホントなのかな？
動画検索で［ わうか ］って探してみてください★
本当に貰った人は教えてください！！♪
momo91176 2 weeks ago
The only question is that in 9:40-10:05 I though the glasses converted the circular polarasation to linear? How can it be still spinning after it goes through the glasses?
seanki98 2 weeks ago
@seanki98 *Great* question. Here's an experiment to try. Take a pair of Real3D glasses and repeat the demo at the end of the video. Then turn the glasses around so that the ear rests are pointing towards the mirror. What happens?
All the best,
Philip (speaking in video)
Moriarty2112 2 weeks ago in playlist Uploaded videos
Hey guys! Have you ever considered subtitling or dubbing your videos into spanish?
javipeque 2 weeks ago in playlist Uploaded videos
youre a nice guy,but your explanations all over the place and too long,you dont need a friiggin physics lesson lol,wtf
snypeify 2 weeks ago
You can found the polarized filter over the screen of any LCD calculator.
achemachew 2 weeks ago
What nationality is this guy ?
tibby499 2 weeks ago
How does the 3DS work then?
Cream147player 2 weeks ago
i hated red and blue glasses
MegaRyanCo 2 weeks ago
This would help explain why I get headaches from watching movies in 3D...
shyvr 2 weeks ago
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i know how 3d glasses work
1. you put the glasses on
2. you get a headache
tacoismykitty 2 weeks ago
Thumbs up for hour long video!
chocolaterainlololo 2 weeks ago
I have a 3D TV at home. The TV has a transmitter and the glasses have a battery... I know it's different and all but... but but how?
gyrofxza 2 weeks ago
Goog concept of polarized.
aps2356 2 weeks ago
going to the theater asap!
yojomo9 2 weeks ago
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每天幫老闆賺取大筆鈔票自己卻只有那一點?
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ｉｐｉｅ.ｆｔｐ.ｃｃ ＜＜請複製網址前往
fewfable 2 weeks ago
Way cool! I figured the lenses were polarized but I never knew about circular polarization. Are regular polarized sunglasses circularly polarized or just Plain vanilla linearly polarized?
terawattyear 2 weeks ago
@sixtysymbols PLEASE do a video about sulfur hexafluoride
IanTheMontrealSkater 3 weeks ago in playlist Uploaded videos
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akashashen 3 weeks ago
Yup, wanting the hour long version!
MexSanukk 3 weeks ago 9
thanks for the nice explanation! this technology is also used in LCD screens to controll the brightness ^^ you have two filters arranged that no light will come through and a chemical which is able to twist polarised light..
MrEquinox46 3 weeks ago
LETS MAKE AN HOUR LONG VIDEO!!! ;DDDDD
SolidArch 3 weeks ago 88
hang on im old if i remember the red and blue glasses?
shit
sk8er4ever0101 3 weeks ago 64
@sk8er4ever0101 Every kid of the 90s remembers them ;)
hang in there!
gomunkul 1 week ago in playlist Uploaded videos
@sk8er4ever0101 Nah, anybody in their late teens to early twenties should remember them.
Arsonfly 5 days ago
Wouldn't it be the other way around, aka red image to blue eye and blue image to red eye?
itsmanofpopsicle 3 weeks ago
@itsmanofpopsicle : The red image is seen through the red filter, while it blocks the blue(or more likely, the cyan/aqua) image, and the other way around for the the other filter.
Of course, saying something like "red filter" is a bit ambiguous, but in most cases where a visible color filter is referred to, the color indicates what the filter passes, not what it blocks, so that a "red filter" in normal use would be one that lets red light pass through it.
Ts6451 3 weeks ago
@TableWolfMusic well if you are asking if other electromagnetic waves can be polarised then yes. and also yes the tinted glass on microwave ovens have a metal mesh screen in the glass but the holes in the mesh are big enough that visible light still passes threw them
Shangrily 3 weeks ago
@Shangrily I'm aware they can be polarised, hence my example of the maser.
As for the holes in the metal mesh screen, does it really work like that? I honestly don't know. I wish I had a ISBN to check a quote from a book on this.
TableWolfMusic 3 weeks ago
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GoodOrion2113 3 weeks ago
I'm with fruitlupes88, I've always been interested in physics, but not the mathematical side . . . Watching you're videos helps me understand the part that is interesting to me. Now, of course, I can go confuse my friends :)
Silence3ternal 3 weeks ago
If you gave such a general title, you have to tell at least one sentence about the active shutter 3D glasses too, because these two major type of 3D glasses are today.
AxelLNo1 3 weeks ago
@AxelLNo1 Hi there. If you scroll forward to the last ten seconds of the video I mention 3D TV (i.e. allude to active shutter glasses) but mention that it could be the subject of an entire other video. Our aim with SIxty Symbols is not to bombard the viewer with information but to put across some of the key principles.
Best wishes,
Philip (speaking in video)
Moriarty2112 3 weeks ago
@AxelLNo1 Yarrr.... there be two kinds of 3D glasses, but actually 3 kinds of 3D displays. Aside from polarized light and shuttering, there's also autostereoscopic displays as well that are found on a few tvs and the nintendo 3DS. And there be 2 kinds of autostereoscopic displays as well, lenticular lenses and parallax barrier displays. So it actually gets a bit complicated if you want to cover all the bases.
htomerif 3 weeks ago in playlist Uploaded videos
Wait...does this mena that actually it´s the projectors in the cinema that is working the most....they most be special right? to make the light go as wanted? :)
Zehle325 3 weeks ago
Love your videos they are awesome and easy to understand! I must say that this technology is preety simple but yet a litle complex :P But It´s so smart! :D
Thanks for the video! :D Keep them coming! ;)
I shall support you with a Subscriber! :)
Zehle325 3 weeks ago
how come when i turn my 3d glasses to a certain angle with my computer screen on the other side, the light from the computer can't get through, although normal light can. why is that? it's a normal computer screen as far as i'm aware.
imamadmad1 3 weeks ago in playlist Uploaded videos
Dude, Brady, an idea: Duct tape two Go-Pros side by side, then duct tape that those to the top of your main camera. BAM Now you're filming in 3D and 2D at the same time.
lvachon 3 weeks ago
what if i put on the glasses and saw the mirror. will i see in one eye what i supposed to see in the other eye ?
omrmtr 3 weeks ago
@omrmtr With your left eye, you'll see everything, except your left eye, the same way you'd see everything else. With the right eye, you'll see everything, except your right eye, the same way you'd see everything else.
The previous statements are semi-true: "everything" doesn't include any other circularly polarized light ray, but it's unlikely you'll have any in the vicinity (except if someone else is trying the same thing on another mirror in the same room... ;-) )
TixTipx 3 weeks ago
I actually deal with Circularly Polarized antennas all the time, it's neat finding out that is circularly polarized, I use it for multipath rejection. You actually show a visual example of that when you held the glasses in front of the mirror, doesn't let the light, or in my case radio transmissions (same thing, lower freq), back through. Super neat, I'll have to show this to the people that work with these too.
jsullivan05 3 weeks ago
i think Brady actually is a plane. don't tell him though.
windowlicker1 3 weeks ago
@Bazuzeus
How is anyone who has never ever looked into the matter supposed to know?
Ibrahim1109 3 weeks ago
murur
bemanos12345 3 weeks ago
@bemanos12345 I was just about the comment with that. XD
gh4ever101 3 weeks ago
I love Sixty Symbols!
rgharakh 3 weeks ago
Mirror = Mrwr
softilol 3 weeks ago
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softilol 3 weeks ago
this is it. make an hour long video. in 3D !
softilol 3 weeks ago
I'm really surprised that I totally understood all of that. Very cool.
diZZybomb6789 4 weeks ago
I will love to have such an enthusiastic profesor. I'm an engineer and i was totally mesmerized by your explanation
facl 4 weeks ago
Love your.chanel keep it up
yrachmani 4 weeks ago
My High School physics sucks...thanks for reminding me...but i'm more thankful for the video :D
steelawake923 4 weeks ago
amazing explanation, simple yet very concise.
thetestmanager 4 weeks ago
I thought it polarizers worked by filtering photon spin.
rodbotic 4 weeks ago
@sabbah1337 AFAIK, it's cheaper to do it that way than the shutter method. That's why we have all the workstation monitors and televisions using that and then high-end projectors in our theaters. Normal "Real-D" glasses you get at the theater work on all of them but the screen in the biggest theater. That one uses a special Dolby projector that requires specific glasses.
joeloud1 4 weeks ago
What about LG Optimus 3D? its a smartphone witch shows a 3d picture but i didnt use a glasses and it still appeared with a depth perception i think thats how you call it. How they got to trick the brain without glasses??
GloomY1HaveN 4 weeks ago
@GloomY1HaveN There are several ways to do it. I'm not sure how the Optimus 3D does, but probably something like a lenticular lens layer combined with eye tracking. Each eye receives a different image, so your brain makes it 3D. Because there's a range where the illusion no longer works and the image brakes, you can only really get away with this on small devices. Anything bigger than an iPad is not going to look as good.
joeloud1 4 weeks ago
@joeloud1 ooh ok thank you :D
GloomY1HaveN 4 weeks ago
Wow... You really need a video to figure out 3D glasses let you see 2 different images ?
Please, do human race a favor : don't breed
Bazuzeus 4 weeks ago
@Bazuzeus please do the human race a favor and don't breed, we don't need more assholes with superior a attitude.
rietveen26 4 weeks ago
@Bazuzeus This video was 3D polarization technology, not just that 3D is two different images. Did you even watch the video before commenting?
Wilson1592 4 weeks ago
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AllNamesWereOccupied 3 weeks ago
This has been flagged as spam show
@Bazuzeus It is not that we do not know THAT it happens, but HOW it happens. Stop being a pretentious asshole, everyone has to learn sometime, just like you did not know once we do not know it right now.
AllNamesWereOccupied 3 weeks ago
When did prof. Moriarity come from? I suppose from a 3D cinema of Sherlock Holmes! :P
alienkishorekumar 1 month ago
MR MORIARTY!!!!!
You might be intrigued to know that our version of polarised 3d glasses was in fact in use during WW2!
We used to use them in conjunction with VERY precise recon photographers (flying modified spitfires of all things) in order to help find the V1 and V2 rocket plants.
They say without them we wouldn't of been able to recognise the vertical launch platforms for the rockets :)
smeghead666 1 month ago
@smeghead666 That's fascinating. I knew that polarisation was used from the early days of 3D "imagery" and movies (although this doesn't come across in the video) but didn't realise that polarised glasses were used in WW2. Thanks for posting!
All the best,
Philip
Moriarty2112 4 weeks ago
@Moriarty2112
I thank you for your reply! You're one of my favorite sixtysymbols Professors, I only wish I could have had someone as enthusiastic and passionate as yourself throughout my secondary school science years.
The whole deal with the 3D glasses and WW2 was called "Operation Crossbow" and t'was featured in a series of BBC documentaries on the war, a fascinating tale and well worth the watch.
Thanks again, keep on figuring out the universe!
smeghead666 4 weeks ago
@smeghead666 An hour-long BBC documentary called "Operation Crossbow" is available here on YouTube. I'll definitely be watching this!
Thanks for the very kind words - delighted that you enjoy Sixty Symbols.
All the very best,
Philip
Moriarty2112 4 weeks ago
What happens when you use a laser light by bouncing it of the mirror though the Polaroid opposites or the laser through the Polaroid with use of camera and the eyes view.
phillipah7 1 month ago
There is something else going on with the light when it goes through the lens of the camera, it is upside down and it digitizes it right side up. What true light are you really seeing? Is it the light that is upside down or right side up when it goes through the Polaroid and you vision it from the perspective of a cyclopes.
phillipah7 1 month ago
I have never heard so much nonsence... Hugo was a terrible movie. :)
Thr89ust 1 month ago
Excellent video, very easy to understand... thanks
billfunky9 1 month ago
A light wave is actually a coil.
BornAgainEngineer 1 month ago
@fruitlupes88 we have a long back catalogue you may enjoy!
sixtysymbols 1 month ago 23
@sixtysymbols I have a suggestion for your next video. This is a question that's been bothering me for a long time now. Inside of stars fusion is taking place and during this process a small amount of matter is turned into energy and released. Well what happens next? What happens to the energy? Conservation of energy says that it doesn't just dissipate, but light dims over vast distances and we only feel heat from our sun and not the other stars as well.
mynameismatt2010 1 month ago
@mynameismatt2010 I don't know if this will help. Think of an old-fashion balloon. The rubber is very thick before you blow it up. As you blow it up the rubber gets thinner and thinner, until it gets so thin it bursts. Energy released at the sun's surface is like the balloon before you blow it up, it's concentrated in a small place. As you go further from the sun's surface the energy spreads out just like the balloon so there is less energy at any point, results: dim light and no heat.
JeanKM1 4 weeks ago
@mynameismatt2010 The energy does not disappear. Think of it as a balloon.
From the surface of the small, deflated balloon there is a thick red color, right?
All the light is emitted from the surface area right? This is why the color is so "thick" on our balloon when it is deflated.
When we travel away from it we have to fill it with air so that the balloon surface can reach us (Just like light travels, the balloon surface travel).
The balloon is given a "thinner" color".
AllNamesWereOccupied 3 weeks ago
@mynameismatt2010 So let me make it simpler.
The energy is the same but the intensity (energy per area) varies.
If you would take the distance between earth and the star you measure and call that the radius, then you can calculate the surface area of that sphere.
4π r^2= Area If you would multiply that with the intensity measured from that star here on earth (ex. 1 watt/m2) you would get the same amount of energy that the star produces measured on its surface.
AllNamesWereOccupied 3 weeks ago
@mynameismatt2010 Simply put, the energy does not disappear. It is only the intensity that decreases.
Look up "Stefan-Boltzmann law" and search for some assignments you can do. Ex. use it to calculate distance and/or temperature of a star. If you want, I can give you some from my old physics books.
AllNamesWereOccupied 3 weeks ago
Hello. :)
I have a question. When you say that light is a wave (I'm in the tenth grade and so I've studied this a bit), what exactly is waving? The electric field? Then how does it wave? What constitutes it exactly? I typed this in Google and I got something like vacuum waving and virtual particles and stuff. I don't really get it. Can you please explain this? Thanks!
And btw, you guys are AWESOME.
MrPokefan151 1 month ago
@MrPokefan151 That's a **great** question that I'm afraid is not going to be answered in a 500 character comment. (It's also a remarkably perceptive question for a tenth grader to ask!) We should do a separate Sixty Symbols video on this topic - I'll see if Brady's interested.
All the best,
Philip (speaking in video)
Moriarty2112 4 weeks ago
@Moriarty2112 COOL. :D :D Please do a video on this, thanks!!
MrPokefan151 3 weeks ago
Test them on lcd laptop screens. some lok like rwinbows,others turns blue or red depending on where you tilt your head.
realdoctormo 1 month ago
DICK TITS GUY !
ADrunkenGoat 1 month ago
So wot is the diff between active and passive glasses?
KSweeney36 1 month ago
so so so long
cocomewo 1 month ago
3D movis gives me headache
Augustenborgify 1 month ago
@sixtysymbols i tried the "one eye" trick and it showed total darkness (as u said) until i tilted my head and it showed what's behind me in a red/pink tint??? EXPLAIN!!
(hope i was clear enough)
Y0USS3Fw5alas 1 month ago
Coincidentally I was showing this 'trick' to my lass a couple months back and explained how it worked. "Oh cooool!" - girl-speak for *yawn* :(
Direkin 1 month ago
gazillion is a technical term SPREAD IT
zeratul575 1 month ago 4
Can't wait to show this "magic trick" to my friends
oceanceaser44 1 month ago
When he put the 3D glasses on at 6:17 i instantly thought "Sons of anarchy" He looks like a biker haha
ItsNotEvenSunny 1 month ago
@ItsNotEvenSunny Excuse me, 6:10*
ItsNotEvenSunny 1 month ago
Love it.
destinws2 1 month ago
its like a diode! hm..
joelamckenna 1 month ago
BIG QUESTION:
MyLeft eye is weaker than the right and millions of other people will have similar conditions
will i see in 3d will it still fool my brain
Syhedghog 1 month ago
@Syhedghog if you see in 3D in the real world, you'll be good.
rageagainstthebath 1 month ago
@Syhedghog probably but if this just happened to you and your not used to it, probably not. why don't you try it?
1206549 2 days ago
2:18. no you're exactly backwards. the red tint is only seen in the blue eye.the red cancels out in the red eye... Just sayin
bbllqt219 1 month ago
@bbllqt219 It's interesting just how many people think that a red filter blocks red light. It doesn't - a red filter allows red light through and a blue filter allows blue light to pass. Google "How do 3D glasses really work". The first hit in the list should be a link to a blog called "The world of Peter J Bentley". This is an excellent explanation of how filters work in the context of 3D glasses.
All the best,
Philip (speaking in video)
Moriarty2112 1 month ago
@Moriarty2112 We see the red filter as red because it reflects the red light. Same for blue. So, in this case, the red filter allows the blue light to go through. At least that's what I was taught
vilondero 1 month ago
@vilondero Sorry, but the red filter appears red because it transmits red light and blocks all other colours. What you were taught is incorrect, I'm afraid. A red filter does not transmit blue light. Google "Wavelength, Colours, FIlters". The first hit is a short and simple explanation (from the University of Leicester) of why a red filter transmits red light. See also my comments below about the "World of Peter J Bentley" website.
Best wishes,
Philip (speaking in video)
Moriarty2112 1 month ago
@bbllqt219 Sorry. You should Googlr "How 3D glasses really work", rather than "How do 3D glasses...".
Best wishes,
Philip
Moriarty2112 1 month ago
oops too long not watching
iprankify 1 month ago
This has been flagged as spam show
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96156560 1 month ago
cool video :)
Moongazerr 1 month ago
I still remember dicktits.
Moongazerr 1 month ago
FUCK he is GORGEOUS!!!!!!!!!!!!
arieloz 1 month ago
your toiret rook rike your office
quosmo1 1 month ago
your toilet look just like your office!
quosmo1 1 month ago
haha hes got bucky balls 4:00, the Worlds best time waster
Ugotowned411 1 month ago
murrors
VoyagesInEnglish 1 month ago
Thanks for explaining how an optical diode works!
powerjam123 1 month ago