Optical Illusions (feat. Vsauce) - Objectivity 18
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- Опубліковано 17 чер 2024
- Michael Stevens from Vsauce joins Keith to look at a study of optical illusions from William Hyde Wollaston and a fascinating series of illustrations by Sir Thomas Lawrence.
Check out Vsauce at: / vsauce
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And Twitter at / objectivity_vid
Royal Society: bit.ly/Royal_Society
Films by James Hennessy and Brady Haran - Наука та технологія
A distinct demonstration of why libraries, museums, and collections are invaluable. When you hear of a politician 'removing funding', or even 'deleting findings' from research, then what they are actually doing is 'robbing our future' of its ability to learn. Truly wonderful vlog. Remarkable images.
I don't think politicians really say that, I guess. I mean they cut funding but they tend not to draw attention to it
2:31 There goes a bit of history, never to be seen again...
ikr
Love how Michael talks about how the paper deals with its title just like his own videos do.
What fell out of the envelope at 2:31?
Dunno.. But nice catch!
Thomas Lawrence's lottery ticket.
Patricia Rock or maybe a bottle cap from his collection... But Michael did exclaim "Very Cool" :p
Gregory Sherman The One Ring
Marcus Rossel To rule them all! Man, Lawrence had a dark history
I wonder if michael wakes up everyday and says good morning family i am your father/husband from Vsauce.
"Hey son! Dad here. Why is their an absent notice from school?"
@@mk_rexx Son: "Or is there?"
I like vsauce, but one of the reasons I love this channel is Brady's presentations and insightful questions. I do hope this channel doesn't get budged off on a series of guest hosts.
***** Oh come on man it's Michael freaking Stevens there's never enough of this guy..
tggt00 He is certainly good at what he does, but Brady's interview style, curiosity and excitement are what drew me to ths channel.
tggt00 oh yes there is. His tangents are often over the top and just for the sole reason of being tangents/over the top.
***** I agree. First I was like "oh wow, an episode with Micheal Stevens, this is going to be great", but in the end I thought "well, somehow I like the videos with Brady better". Nothing against Micheal, I love his videos on Vsauce - Brady seems just to fit the Objectivity style better.
Love how he admits that Vsauce really doesn't ever answer the actual question at 4:49
Very nice episode, can we expect Derek of veristablium next?
Varytabliun
Cretu Radu Dirk of verbitalium?
Derk of veristasium
Derp from Van Halen? (One I made up)
Cretu Radu verysassium
Every new video makes me want to visit the Royal Society more and more.
*tips head* It seems to be related to the position of the nose vs the position of the irises. If the nose is on the same side of the face that the irises are in the eye socket, the figure is looking away. If they're opposite, the figure is looking at the viewer.
Well I have officially watched every video on this channel and I would glad to say that these videos have been wonderful. Please keep them coming.
Thoroughly enjoying this series! Please keep them coming. thanks Brady
"Hey, Vsauce! Wollaston here. Why do the eyes of portraits appear to follow us?"
*blonng*
Royal society: "Erm...who the hell are you talking to, and who's that man with the chimes?"
z beeblebrox Jakob Chudnowe :)
So good to see Michael doing something on youtube
This is currently my favorite channel on the UA-cams
Thank you, Michael, as always.
I love this so much. So many upthumbs.
Those drawings go to show Lawrence understood the psychology by experience better than Davey could with the modern science, definitely awesome.
Objectivity in criminally underviewed. This is an excellent video.
I could listen to Keith all day.
That is _really_ cool! Great video!
Very cool illusions. I've always loved optical illusions as well, and it was nice seeing some that I'd never seen before.
Also, it'd be cool if the a vsauce episode were just Michael reading that paper.
great video yet again!
Wonderful!
A video this good justifies the hours I waste on UA-cam for another week or two...!
My reaction when I saw Michael from Vsauce = :O
PD: We still love you Brady ;)
PRO3LEMS Haha it took me like 15 seconds to notice something weird..
tggt00 me too! I thought I was really watching a vsauce video for a while
Rochester Oliveira Haha yeah when one just goes through the feed of new videos killing time and doesn't pay much attention to what channel they are from. "Oh I guess this one was from Vsauce... nope!"
I never knew there were optical illusions in normal paintings, such as where the eyes are pointing, until I saw this. I did know about illusions of color that artists use, and of course perspective.
When you take into account the deliberate mistake of not having the eyes slightly warp with the direction of the face it removes the romanticised idea of this being entirely up to the viewers perception or contextual clues.
All the eyes are drawn to very closely resemble a front-facing perspective.
This is easily noticeable as the farthest eye from the viewer will always hang off the edge of the face. They don't work with both left and right facing faces. They actually work with neither; which is why this works... if that makes sense.
Good point.
Keith looks like the 12th doctor
Wow.
This blew my mind.
Wow this was awesome
There's a brilliant painting I saw once where the sitter's shoe seems to follow you around the room.
Keith sounds like he could be a character in one of David Firth's cartoons.
Totally. Maybe he could voice one of Salad finger's friend.
High functioning Asperger's person here...and I must say I'm not surprised that this is more to do with reading a face than the actual eyes. I never understood the thing about eyes following you around a room. They only seem to be looking toward me when I am standing right in front of them.
That's really interesting.
Same for me, another guy with Aspergers here. The optical illusions still work for me though.
Eamon Burke To me it's more like the category of gaze direction does not apply to flat surfaces. Of course I can tell that the person in the picture is looking at the viewer but the illusion of being looked at quickly breaks down when I'm off-axis. However, this doesn't have anything to do with the topics discussed in the video.
So, what exactly does Asperger's have to do with this? If I get a sufficient answer, I may consider deleting my offensive comment.
Riemann Tensor People on the autism spectrum don't really look at someone's eyes the way "normal" people do. It's not that we're unable to meet people's eyes, but it's a learnt skill, rather than an inherent ability.
What is Wheezywaiter doing here ?
Sylvain Janet it's just one of his clones
karottenkoenig Let's take a moment to consider how this video would have turned up if he sent sexy clone.
I already want it done.
count me in!
I don't know if Keith could handle that. It would be tremendously awkward.
Sylvain Janet Wait a moment, I know I've heard Wheezywaiter say that Vsauce Michael isn't him, but has he ever said that Michael isn't a clone??
Michael! How cool!
Brady, I like your new hair style!
keith delivers!
I was expecting them to show that illusion where the whole head turns to face you wherever you stand in the room.
There seem to be two mechanisms at work here.
One is simple perspective compensation. If the pupils are closer to the left corner of the eye and the nose is pointing straight at the "camera", we assume the eyes are looking left. But if the nose is pointing to the opposite side, we assume the eyes simply turned to compensate for the angle of the head, and are therefore looking more or less straight at us.
But there's another, slightly "dishonest" thing going on. Most of those portraits are significantly cross-eyed. One eye is more centred, and appears to be looking at the viewer (i.e., at the artist) while the other is looking slightly to one side (in one case, they're even looking at different _heights_). It seems that, depending on the lower half of the face, we give priority to one of the eyes, and ignore the fact that the other one is looking in a different direction. If you cover the bottom of the face you'll notice the mismatch between the eyes quite easily.
Kieth: Heres a paper written in 1824....
Vsauce: When was this written?
Vsauce taking over youtube. Next week Michael will be doing seriously strange. Hope he gets a well used hair piece and a couple Mario mustaches for eyebrows.
weird to see Michael without his intro "Hi Vsauce Michael here" LOL
Very interesting, but like the original paper, they don't explain the reason behind it...
I was going to make the same comment myself! Hopefully they update the description with a link to the reason.
mcol3 I think it was implied that it's nothing to do with the painting itself, its simply that your brain creates the illusion of the eyes following you.
***** "its simply that your brain creates the illusion"
Just like every illusion. :)
mcol3 I like it, this channel isn't about explaining outside of what we see. Some times you can go on to find things out for yourself you know, can't learn everything from 6 min youtube clips :)
mcol3 Since a painting is 2D rather than 3D like a sculpture, the same image is seen no matter what angle you look from. Looking at a painting from 30 degrees to the left just causes its width to shrink rather than actually turning the model.
Cool crossover!
So, Mike Can we expect this kinda subject to be in the next Vsause eppisode?
The direction the eyes are facing does not change if you look at the whites of the eyes. The illusion comes from the viewer mentally seeing each picture as entirely separate from the last one. Because we deal with so many people on a daily basis ,and each person acts differently, we become accustomed to people looking at each other in different ways. For example, some people tend to squarely face whoever they are focusing on whereas others tend to focus from the side. At the same time, each person also acts differently depending on their mood, how hungry they are, how much sleep they've had, etc... The result is that we see eye direction and do a comparison with the direction the face is pointing, the expression of the face, and what it has to do with our current relation to its apparent attention.
at 2:30 as Keith hold up the next thing he is going to show something looks like it falls out and down to the floor
Wow, those are some really cool illustrations :-)
P.S. Yay, Vsauce :-D
Now this was unexpected!
" In portraits, the phenomena of direction with reference to
the spectator, and corresponding change of apparent position
in space when he moves to either side, depend precisely on
the same principles. A nose drawn directly in front with
its central line upright, continues directed to the spectator,
though viewed obliquely. Or, if the right side of the nose
is represented, it must appear directed to the right of the
spectator in all situations ; and eyes that turn in a due degree
from that direction toward the spectator, so as to look at
him when viewed in front, will continue to do so when
viewed obliquely"
Keith is the MVP here.
I almost crapped my pants when I saw a lack of Brady.
I love optical illusions too
What I find most interesting about this is that even if someone's lower face is covered, you can still detect emotion through their eyes, whereas this might show that you could easily be mistaken.
Well, the universe saw fit to test this on a massive scale, and in my humble opinion it was made more difficult to discern and display emotion.
Now i want to see Brady doing all the squats that Michael usually does in the next Vsauce vid
Cool, V-Sauce! I love how tight knit the youtube community is. Where's brady tho?
That opening line.... I predicted it!
Best crossover since!! um! Star Wars in Soul Calibur? ehhhh. I'll see myself out...
William Wallace was a chemist? Did he invent that blue paint that he put on his face before battle? That was extremely difficult to even type out...
Congrats on 123,456 subscribers
"ok, today i present to you factual proof, that the eyes of portraits do NOT follow you around....while also proving that they do!" "here is a scientific toy, to display the evidence.." while all the other members "Hrumph!"
2:32 does Kieth know something fell off the portrait envelope?
Whoo! Michael! Awesome, but is Brady ok?
At first I thought I clicked on a Vsauce video by mistake...
Derek Leung Why are you everywhere?
-_______-
Lock Ray Stop stalking me...
Derek Leung I'm not! By the way the new furniture looks great :P
That Michael fellow is quite interesting, he should consider starting his own channel.
4:38 I disagree here. Although the portrait's overall posture seems to be facing to it's right, he is still looking to his left. only, he appears to be looking at the viewer, because instead of his right shoulder being positioned slightly forward, as it is in the first, his left is. This gives us the illusion that his looking left in directed toward the viewer.
If you had Destin here too this might have been the greatest gathering ever...
vsauce's spit is now on these papers and will be forever.
Hi Michael!
Anyone has an explanation for this? All I can think of is that when viewed at an angle, the result on the portrait is that it elongates on the vertical axis vis-a-vis the horizontal axis. So from my perspective (no pun) the follow-me-around-the-room "illusion" is not really an illusion but a testament to the fact that human brains can recognize a wide range of facial shapes, as one would naturally expect from an otherwise healthy individual.
Is the paper available in digital format anywhere?
***** the article
Michael: A bit like a Vsauce episode... doesn't really answer the question. Goes into a lot of detail about a lot of things.
3:30 I always say it look to the right
No audio. Other videos work fine, this one has no audio. No copyright issues as far as I can tell.
Vsauce. What a name 😖
You know, I thought I sort of understood why eyes in portraits tend to follow you. But having seen these drawings, I realize I clearly don't. Weird, wild stuff.
Did we lose a piece of history at @2:31?
Don't get me wrong, I love Michael just as much as the next guy, but Brady does seem to have a stronger bond with this channel for me.
VSAUCE IS NOW MASTER HAND
Nice video, but I really hope this is a one off with VS. as guest host.
Does anyone know how tall Keith is?
Did someone write a paper hundreds of years ago detailing what Vsauce actually means?
Hey Vsause!
So why do the eyes of a painting or drawing follow you as you move around?
Magic and shit
Perhaps that's not Michael. Perhaps it is actually Brady and... an optical illusion.
whaaa??? this is cool
i wanna merry michael
why does only one guy wear gloves?
I miss vsauce! :(
MIIICHAELLLLL!!!!
Alright...who else went-
WHAAAAAAAAAAAAAAT! MICHAEL STEVENS!! *Star Struck eyes*
cooooooooooooooooool
"So... Keith."
...
...
...
...
_Or is he?_
"Doodoo, by all means." - Keith
Oh.. Hi Michael :)
Michael of Vsauce introduced me to Ask A Mortician (great channel), but I beat him to this channel! MWAHAHAHA >:)
Tip -- don't film on board a sinking ship.
I find it funny how Michaels acsent sounds realy out of place next to Keth, but his acsent works in his vidos
Wut? Micheal here?
Something dropped from the sketches, quick pick it up.