"YOU WON'T BELIEVE YOUR EYES!" - Smarter Every Day 142
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- Опубликовано: 29 сен 2015
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SmarterEveryDay
Ambiance and musicy things by: Gordon McGladdery did all of the sound design for the video.
ashellinthepit.bandcamp.com/
A special thank you to Dr. Stuart Anstis.
anstislab.ucsd.edu/
Read some of Dr. Anstis's Papers:
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Warm Regards,
Destin 
Наука
Has anybody else noticed you can 'break' persistence of vision? For example, if you look at a really fast moving object, like a spinning tire, or ceiling fan it looks blurred, but if you dart your eyes away from it, or towards it you can see a single 'frame' of the action?
+TheBackyardScientist Or blink really fast while staring at it :D
Or a hubcap on a car.
+TheBackyardScientist That is called Chronostasis I believe. This is also why the first second, when moving your eyes to look at a clock, can seem to take slightly longer. Really interesting effect for sure!
+NicolaiGD This! It happens because your vision essentially 'freezes' when your eyes move from one spot to another. Otherwise, everything would be a massive blur whenever your eyes moved even a small amount.
+Chris Latham The interesting thing is that in your memory the picture that you saw during that time is actually the picture you saw after you moved the eyes, not before. That's why the thing with the clock that Nicolai mentioned happens.
Yup, the island was white and gold, no doubt on that!
NOOOOO!IT WAS GREEN,BLUE AND STONE GRAY!
+HCN nah nah nah blue and black
+Ry P I'm pretty sure when the image swapped the lighthouse turned into a spike, piercing the land, while crimson blood flowed into an ocean of blood.
+Ry P
This is the lighthouse that will pierce the heavens.
+seigeengine edgy
"Oh hon, I'm just meeting a guy in a hotel room thousands mile away to look at some lightbox!"
yeah and they are just 2 STR8 nerds
Just to beee honest :)) Destin's wife can tell from the excitement in his voice that he is definitely not meeting Irina Shayk at a 5 star Royal Suite at a convenient location...
I remember really hoping after he spoke to the professor he'd talk to a biologist and explore what environmental pressures led to homo sapiens developing that trait of persistence of vision, is it just to maximize the info you receive to be able to better see threats, or just a more efficient thing that doesn't really have a dedicated evolutionary advantage
@@KaladinVegapunk well it's probably the law of least effort, since you don't really need THAT fast of a resolution the brain just cuts short. Otherwise it would spend too much energy
me: looks very closely at the lighthouse
asian parents: wHaT aRe YoU DOiNg
That’s why I rent an apartment
100th
. Like
I think Smarter Every Day is one of the few RUclips channels where I actually feel like I've DONE science, I fully understand and feel involved in learning it
Be nice if school was like this… maybe that would help me (and my entire class) pay more attention.
+David W Cause he knows how to explain things so that they are easy to understand. And he does a great job of it. He deserves a lot more subscribers.
+David W what people get to learn in about 2 full time classes he gets you to learn it in less than 10 minutes its simply amazing
+Álvaro Astrada Yes, but at the same time, you don't have any pressure here when learning. In school you actually have to learn, and most of the time you don't want to know. Here you're actively clicking a link and sitting down and watching a video. That will of course make it more enjoyable. Also, you can only explain this phenomena, but can you calculate anything? Could you understand it if I were to use another way to describe the same phenomena? In school you learn more deeply then what a youtube video can give you.
Or atleast this is what i think of the subject.
ᅚ ᅚ What we're saying is, if an average school teacher tried to teach the exact same information thats in this video, it would take much longer and they wouldn't explain it as well. It's not necessarily "what" you teach, it's "how" you teach. Thats what separates the good teachers from the great teachers.
The light house made me go back 3 times. I love natural illusions. Thanks for the trip.
Lil Puff word mad coo I peep it a couple times too lol
I only saw a tiny amountof blue-ish in the sky, rest B&W. I am broken?
@@Mutation80 Broken isnt the word I'd use. You could be partially color blind. Thats pretty commen. When was your last eye exam. Lol
its a different picture inverted with color but when he "inverts" it he is using a image that is black and white
Lol me to
Destin, I'm a 44 year old Australian atheist and I wanted to say two things.
1. I am a HUGE fan of yours - you are a genuinely likeable, fun, curious person and even coming up with the topics for your channel must be a labor of love.
2. I really and truly appreciate your quiet, gentle ministry of the Biblical verses at the end of each episode above the pic of what I think is Reepicheep - the Narnia series is another such example of beautiful, gentle, calm ministry of Christianity. I wanted to tell you how much that means to me.
Dr. Stuart Anstis was a high, high quality guest expert
I was so scared that there was going to be a jump scare lol
+JSuave Me too..I was scared that he was going to troll me..XD
+JSuave Me too..I was scared that he was going to troll me..XD
+JSuave right ,i had to check the comments before i set myself up to not be able to sleep.
+JSuave i thought i was going to be the only one!! lol
YEAH I WAS ANTICIPATING IT
The one issue I have with this video is that Destin says that if it wasn't 30fps we would begin to see flicker. That wouldn't happen because the frames aren't displayed and then removed before showing the next frame as a film projector does. What actually happens is that one frame is shown and then instantly replaced by a new frame so that there is always a frame visible. If you lower the frame rate, the video would just begin to look choppy and unnatural and at a certain point, our brains wouldn't detect it as motion at all, but as a slideshow of images.
we need to get more likes on this comment so destin may see it
+APPLBL00M This is the same thing with modern displays, where cloned (persistent) frames where inserted between active frames to ensure the image appears smooth and doesn't strain the eyes. This was a significant problem with CRTs running at or below 60 Hz as the image appeared to be flickering heavily; often causing eye-strain for extended use.
Edit: There isn't actually another frame inserted between frames, but rather the previous frame is kept on screen until the next frame is displayed. However, on Nvidia Gsync displays, cloned frames are used to help with screen tearing.
+Christopher Moon - There are frames synthesized and inserted between frames for displays that 'fake' higher framerate (like high framerate TVs usually have). There's even a computer software that can do this for any monitor/laptop called SVP (Smooth Video Project) which can make your video appear extra slick, but it works best for predictable motion like on live action films - it's very choppy for anime, games and things with more erratic motion. I don't use it 'cause it was annoying & buggy/laggy, lol.
+Elvis S Actually, not all screens work like that at all. Some actually do flash frames for a fraction of the time they're supposed to be on the screen for.
Destin has the ability to explain the most complicated ideas in the easiest and most interesting way!! I am officially addicted to this channel.
the circuit board blew my mind way more than the picture thing. he populated that in an hour! that’s mind blowing.
You are the opposite of a TED talk but in the right way, less talk, more show and tell. I love TED talks as much as everyone else but I like to see THINGS instead of a slideshow. Thanks for giving me something interesting to watch and unwind whilst also learning. Looks like you have a great time doing it too.
I know right. I totally agree. He's so enamored with what's in front of him, like a real love and thirst for new and amazing knowledge. Things we take for granted hidden like little gems in plain sight. I love that.
You said whilst
@@john.john.johnny moist
I don't like Ted talk anymore many have become politically influential and left loving. I like some really interesting people passionate of their works.
Abhinandan DL you dislike ted talks because some of the guests have a different opinion on politics then you do? If they were right loving guests I guarantee you wouldn’t feel that way.
The skype professor looks/sounds like a Bond villain enjoying retirement
I thought it was going to be an optical illusion, where they brought the "really bad skype image" into focus and you realize it's the Host of Smarter Every Day himself.
Carbon 14 Ha Ha!!! YESS!!! 😂😂 amazing comment!! 😀
He needs to be smoking a wooden pipe thought, and twirl his mustache
I needed this more than you know. Thank you.
To me, unfortunately, he looks like somebody who's possibly confined to that chair to a large degree due to some ailment or disability. Just by the way his body barely moves as he talks, and that ominous looking pole off to the right. I hope I'm wrong.
Plot twist:
Actually only the first 2 milliseconds of the video were real and your brain made up everything else.
Plot twist:
RUclips doesn't exist it's just your brain making it up for entertainment and you have all the knowledge of everything that could happen so you made your own reality based on what you think could go together to make something
@@dexterbernard5457 Plot twist:
This whole world doesn't exist it's just the whole matrix system generated by robots. What you see and perceive is just a virtual reality.
@@DuyNguyen-bn2mn plot twist: i don't exis-
Plot tw-
5:16 I love the way the Dr smiles at the compliment 😂
Doctor Stuart reminds me of Albert Einstein with a German-British accent
+Antonio Garcia Sooo... Just Albert Einstein?
+Benedocta XD
He reminds me of Ron Jeremy. XD
+Antonio Garcia Wasn't Einstein German?
+Tai Lopez Austrian
My fiancee was freaking out because when she went to try out her wedding dress that she tried out 5 months ago looks yellow. Her mom, sister, and bridesmaid also agreed and freaked out. They accused the store that they were selling her a completely different color (another version of ivory). They were 100% convinced that the store were pulling something funky. She came crying, and I asked her: What was the weather when you first tried your wedding dress? Answer, it was a super bright, clear day. When she went the second time, gloomy, winter day. Also, ask her to show me a picture of the time that she tried her dress back in July. Well, she had a full, summer tan and dark hair. Second time, her skin is pale from the winter, and she died her hair blonde. I told her to try dyeing her hair back to dark brown, and get a spray tan. I explained that color is defined by three elements: the object (constant), the observer (brain - not constant), and the light source (not constant). She went back to try on the dress. She came back crying tears of joy, "babe, you're a genious!". Her dress was a brilliant and beautiful as she remembered. I told her, I'm not a genious. I watch SmarterEveryDay.
Your fiancee is just picky. Any dress in any color will do. What exactly is her problem?
maybe he was emphasizing, sarcastically, the not a genius thing...
and @sentry-1911 she isnt your fiancee so why do you care or have a comment about her? dont say things at all if you cant find something nice to say #mommyoldschool
Owen Wakelam english spelling
And then everybody stood up and clapped
Destin you are a legend. Absolute pleasure to watch your videos.
Great content! You’re a very smart man. RUclips needs more of this
Was just sitting here watch this and thinking, I hate those people who have something like this explained to them, and their response is something along the lines of "You have too much free time" or "ha, that's too nerdy for me to understand".
Like just no interest in personal improvement at all.
I hate how the news (at least here in a couple UK newspapers) they call scientists "boffins" or some equally disrespectful term that's basically looking down on them for being scientists. Knowledge is seen as a negative thing because people are jelly they don't have it ;^). School's need rigorous and interesting curricula to capture people's minds. Not "Intelligent design" or the other nonsense that American school boards viscously fight to put alongside factual things like evolution or plate tectonics. "Just teach the controversy!" there is literally no controversy amongst scientists.
YH
+Darc Gibson Well, there is some.... Admittedly not a lot on this matter, but still.....
Also, no American schools (or school boards, for that matter) I've ever been to "fight" to put intelligent design in the books. In fact, it's rather ironic that you claim knowledge is shunned while simultaneously spewing ignorance about such matters. There are of course outliers, but pointing to outliers as the norm is simply ignorant.
NightRaven 1901 Yeah perhaps, I do think some people just have insanely backwards priorities though too. I mean, when you look at the people that have achieved success with zero intelligence these days, it's not surprising.
most of those people believe the real world goes on in a 3*5 screen in their pocket.
The way is works in the lighthouse pic is because your eyes hate seeing the same colour for a long period of time so they sort of start subtracting that colour from your vision. When you see the uncoloured picture, you see the subtractions (negatives) of the inverted colours, thus you see the right colours.
The technical term is "cone fatigue", which is literally the cones in your eyes getting tired. When the color you're staring at goes away, the tired cones stop perceiving that color as it recovers, meaning its complimentary color overpowers it and appears in your vision.
Yes, cone fatigue! We learnt about that in year 5 I think (9/10 years old for you Americans).
im going into seventh this year...havent learned it
Interesting. Has just made me more curious as to why it doesn't have that effect on me. Is it just due to young, healthy eyes or due to something brain related?
Has nothing to do with healthy eyes. It affects everyone.
This reminded me of when I was a forestry student and we were covering stereoscopy in photogrammetry. Basically one looked at two ariel photographs taken from slightly different angles through a viewer. From this you get a "3D" image where you can infer "height", allowing you to work out yield from stands of trees. It's also used by the military to assess heights of buildings when looking at targets. What I and one other found was that we couldn't see the "3D" effect at first; I had to "tell" my brain to allow the image to pop into view. The lecturer said that this was a problem with folks with high IQ's; though I fear he was stroking our ego's on that one.
That spinning LED board is just like a very early version of television. Say Destin, you never fail to get me excited about the subject you present. Perhaps your own enthusiasm is instantly contagious?
My faith is restored. Superb channel my friend.
Your genuine enthusiasm is contagious Destin. God bless you.
I started watching your channel today and already watched like 15-16 videos, this was by far the best!
It wirks again and again its absolutly stunning ... the second time the color were even stronger for me propably because i saw the original picture already!
*reads title*
IF TEN MILLION FIREFLIES...
Billy Mays i hate that i know this
lit up the world as i fell asleep
I forgot what the next line is
CueTheAnxiety CUZ THE FILL TGE OPEN SKIES
lit up the world as i fell alseep cause they fill the open air and leave tear drops everywhere
Finally a smart educated Purposefully RUclipsr
MR soul surgeon agreed
lol but smarter isn't a word
MR soul surgeon check out Vsauce
David Horgan yea i like it
does it do holograms as well
U shaped my middle school days. I come back to watch this till this date. Thanks dude for this video!
That lighthouse blew my mind. Thanks smarter everyday.
Wow! Both Veritasium and SmarterEveryDay upload on the same day!
+Samarth Prabhu My life is complete!
+Samarth Prabhu now we need vsauce
+Samarth Prabhu yeah dirk's videos are great
+Samarth Prabhu And ASAPscience :D
+Samarth Prabhu || so apparently they're still synced!
So level with me... Did you see the colors on my island photo?
Also... if you'd like to take a poll on what the colors looked like to you, here you go:
docs.google.com/forms/d/1LFtbwM1HvKxnop77DiA0W5kbc1-X_bIfFvrgSbsroJM/viewform
+SmarterEveryDay In a way, yes.
+SmarterEveryDay I feel that it counts as click-bait only if you haven't watched the video or have not read the above comment. Idk...just my thoughts!
fkin click b8 m8 i r8 8/8 while i masturb8 -IGN
+SmarterEveryDay It's just like any porno. Sure the titles will seem like click-bait, but they sure do hold true to the content. Love your videos by the way.
+SmarterEveryDay I think the quotations give it reputability but it still strikes me as partially click bait - even though it's unintentional. Either way, loved the video Destin
Hey Destin! You are awesome! Thank you really so much! Really apprechiate your materials! Made me smarter every day!
You are perfect for the STARGATE SG1 TV series...
this persistence of vision topic was taught to us in 10th grade not so much but a brief idea was given your videos are awesome love to see them
Pretty amazing! The illusion really took my by surprise. Reminds me of a trick a school friend showed me where you looked at a spiral (spinning I think) for a minute and then a picture of stationary clouds in the sky... which actually appeared to be moving. Anyone know what was going on there, as it's not specifically to do with light persistence?
en.m.wikipedia.org/wiki/Motion_aftereffect
+DIY Perks You can also get this kind of effect by playing guitar hero for to long. :P The intensity and focus of how you stare at the notes coming down to time hitting them then when the song ends you look around a bit and the entire room appears to be growing because its NOT continually moving downward like the notes were and it thus APPEARS to be moving upwards. The effect usually doesn't last that long in this case though unless you are basically continually playing the game through several songs without stopping or giving your eyes some time to rest between songs..... probably not healthy doing that though.
+DIY Perks omg im subbed to you, its awesome to know you watch this channel too
+Ash G. I subscribed to +SmarterEveryDay before I started making videos :) been a fan ever since!
+DIY Perks I guess you've never had a job where you work with objects moving on a conveyor belt. Eventually you get so used to the constant sideways motion that when you sit down for lunch it feels like your food is trying to sneak away.
I told the police officer it wasn't my fault, I was still seeing the green light when I crossed the intersection.
solobackpacking heheheh
You'd see purple -all colors mixed. Imagine brown/purple traffic lights..
I told the cop that the gun didn’t look like it was still pointed at the kid
Flickering yo
@@johntomik4632 that eyes of yours still part of you. Still your fault peace u!😁
I’ve been thinking of building so many funky things forever and this makes me feel so inspired!
I am always fascinated by the perception we get using our senses.
The visual stuff is super interesting!
The way that our mind processes all of this and creates an environment that we can experience just blows my mind off the scales.
Great work by you and your team!
Maybe you guys could make a video about that "inner experience"?
I mean, it's one thing to look at the illusion but your brain somehow places the image in front of you using an environment that's completely internal. That's the part that I have a really hard time understanding.
so far best video title for best video and you look like matt damon
+Fazlul 101 I would go to Mars tomorrow.
+SmarterEveryDay lel
And you sound like Owen Wilson
+Fazlul 101 That's not a compliment.
+Fazlul 101 HISSSSSSSSSSSSSSSSSSSSSSSSSSSS
That’s a pretty crazy shirt for someone who studies visual perception..
I wish RUclips had 20 more of you. I literally yelp when you have a new upload
I feel dumber every day because i am seeing you guys getting smarter :'
Persistence of Braining in the Universe. As observed on the Simpsons:
"Oh Marge, what's the point? Every time I learn something it just pushes something else out! Remember that time I learned to make wine and forgot how to drive?"
"Homie, you just got so drunk you couldn't find your keys for two weeks."
actually you do become smarter, but as you become a little smarter you more realistically assess yourself, and that person is really dumb.
one of the more informative videos when it comes to stuff like this, good job man!
and yup i saw colours on that picture
Sup 6foot!
+6Foot4Honda wtf you doing here?
Our brain is the most amazing machinery.
+6Foot4Honda Why do i see your comments absolutely everywhere xD
+6Foot4Honda WTF... I subscribed to your channel earlier, and now here you are commenting on a video that I only watched because it was in my recommended and looked interesting. It's a small... internet...
You work so hard for this video. Wow. Thanks for uploading quality - makes a difference!
Good stuff! I remember studying this stuff is my Gestalt psych theory class in undergrad. It's really fascinating. And, yeah, we can largely trust our eyes. this and other such phenomena such as cartoons where movement is seen by fast flipping frames, are an exception, however.
I Love how you said that the imperfection in our eyes its what makes it possible, because in engineering materials, thanks to structural defects it is the reason we can process materials. makes me think about life. each defect is actually a blessing is disguise?
Hécor Vilaró - We are mysteriously and wonderfully made, and God has a different plan for each of us.
You are actually making me smarter
milk for you every day*
@Sassy The Sasquatch maybe not.
Thanks for the free milk:)))
🐮
so actually what we see now with our eyes is the past
because the delay
Oh yeah!
that was deep
Also speed of light
laaaagg
So basically it's impossible for anything to experience things live, as even our nervsystem is delayed when it has to send the signal all the way upp to our brain.
In 1996, I invented this principle (quite early, but probably I wasn't the only one to think of this) and came up with a prototype called the 'Ledsaber' that used 30 red leds in a row and a preprogrammed series of images, slogans and expressions that would become visible when manually swinging the ledsaber up and down through the air. I was limited to using red and green leds to illustrate the concept because white and blue leds had only just been invented in those days but were not readily available yet! The story of my life!
i look at the lighthouse without focusing on the lighthouse and it doesn't change color and i was amaze when i repeat to do exactly what you instructed and it works.
Awesome comprehensive and informative video. subscribed!
Agreed. He's a great dude and produces excellent content. Spread the love to the friends
me too
me three
Same here!
in the first test i think the picture is edited
Holy cow. I learned a long time ago to not get upset when I realized someone was smarter than me. I learned to seek them out, and enjoy their company. Greg's brain power and initiative blows me away! GO GREG!!
Nice video very enlightening! 👌🏾
That doctor looks suspiciously like Albert Einstein.
I vill mess with time...
@@EliteTeamKiller2.0 Rick sand Morty ref.
he sus
this basically explains why a game or video looks better at 60 fps rarher than 30
Kind of. As with TV, the point of having a higher frame rate 60p rather than 30p is because you get more frames in a period of time. While your eye can't tell the difference for most things, it's important when you have small fast-moving objects on screen, because then they will be spacially closer together and the brain will connect the movement better.
it looks even better with 150 for...... lol
+thebigitchy Despite what people claim about the capabilities of the human eye, I can almost always tell the difference between 24-30fps and 60fps, especially with camera pans or fast movement. It just looks smoother and more natural. 30fps looks fine when you're not comparing it, but when you do compare it, you can see a clear difference. This means that, like you said, 60fps and higher is important for fast moving objects, especially in video games because you can actually see the difference and possibly react faster. However, for some reason, perhaps because we're used to it, many people (myself included) find that 24-30fps looks better with movies. It doesn't look more natural, but it looks more cinematic.
Even though the brain (or eye or optic nerve) merges pulses of light together, the effect isn't perfect. Some of the flicker carries over into the rest of the brain. It may not be enough to induce seizure or migraine, but does affect your performance (web.mit.edu/parmstr/Public/NRCan/nrcc38944.pdf).
I want to say you need around 1000 Hz to be completely safe, but I can't find a source and it's probably just a rule of thumb I came up with the last time I researched the subject.
I'd say so, although much higher than that and your brain doesn't perceive it anymore. So I think once you pass 60 FPS it becomes pointless.
This reminds me of spelling letters in the dark with the glowing end of a burnt stick
That has implications for lighting, too. I noticed while cycling home from a friends house a couple years ago that with my headlight on medium, the tire tread pattern on my front tire was moving slowly backward. A classic strobe effect. Apparently, LEDs work best driven at a certain current - to dim the lights, circuitry just cycles them on and off rapidly. In essence, I was riding in the dark half the time. Which also may be a problem for smart cars - depending on the frame rate of their cameras, they may, or may not see some types of LED lighting as being on.
Hey Bedestin, great video!
Once upon a time I was a security supervisor at an installation where security was taken seriously. When it was foggy the black & white monitors displaying images of high interest areas would show an almost solid block of gray mist even when the camera lenses were clean and dry. Even after the fog or mist had almost cleared so a human (put in place to temporary replace the degraded mechanical view) could easily see along the entire area the remote monitor covered. I do not remember any difference in how the fog disrupted the display between night and day.
After studying the monitors and then going into the field to see for myself the clarity of vision humans had compared to the monitors I hypothesized the monitors were literal in their display of the data they received from the cameras. I thought the monitors displayed every droplet in the mist in a two dimensional manner along the length of view. So the monitors added up all the droplets existing in the infinitesimal slices(?) of the camera's collection of data causing the monitor to display a solid misty view.
I figured why the same length of space with slight mistiness seemed relatively clear to human sight was due to our brains doing some processing to see through or around the areas containing droplets.
Although I was curious; it was before the great internet and time prevented me from driving to a library to research the phenomenon. I will be reading up on Dr. Stuart Anstis' visual perception papers! Thanks for the tip Dustin.
+EDITHFIVE There's another possible reason for the camera trouble. Some cameras are more sensitive to ultraviolet light than human eyes, and small amounts of fog can reflect a lot of ultraviolet light. So what seems like a mostly cleared fog situation to your eyes is still ultra-violet opaque to the camera (which saves all of that ultra-violet reflection as plain white). A yellow filter over the camera can help a lot (because it keeps that ultra-violet light from getting to the camera sensor).
+OrigamiMarie YURIKA! Thank you OrigamiMarie, your simple explanation just helped me realize why yellow-lensed sunglasses cut down glare so much. By removing the ultra-violet light before it gets to the eye, you cut down on the amount of light the eye has to ignore, thus reducing the strain. (Or, at least this is how i am thinking about it, i could very well be wrong.)
+stertheder Yes! The yellow filter takes care of the near-ultraviolet and actual ultra-violet (that some people can sort of see) light. That short-wavelength light scatters more easily in fog than longer wavelengths, and this gets in the neighborhood of explaining why the sky is blue.
Sunglasses can do two main things, filter out all of that short wavelength scattered light (with yellow), and/or filter the light that's polarized in a particular direction (which takes care of a good chunk of the sunlight-reflected-off-cars problem -- the light that bounces to your eyes is all waving in about the same plane, and can be filtered by tiny little lines like window blinds). Oh, and fun with polarization gets over toward movie 3D glasses technology . . . so many linked things :)
A fine balance between being informative and being understandable, topped off with plenty of enthusiasm and anecdotes. Subscribed.
at 0:52 when you switch the picture, I see coloured picture for about a second. The colour disappears quickly, amazing!
THAT is amazing. There are some very clever people on this planet working out of their bedrooms/garages. Thanks for your brilliant research and superb videos.
The sea and the sky were colored for me, but the island didn't have any grass on it.
blue or gold?
+HisRoyalCarlness noob
+Luk Kie Blue. Never gold. Never.
+Gavin Mclaughlin Excellent.
That could be a sign you have mild/partial colour blindness. No joke. Quite common amongst men.
Wow awesome, I really enjoyed this one.
Freaky, when you inverted it, I saw full color over the whole image and in half a second it went all gray...
April Wilkerson!? Me and my dad like your vids :D
5:25 That would be an awesome topic to study, continously fascinating
This show has taught me more than my high school physics class
I stumbled on your channel by chance. Now l'm hooked. Enjoyed the top notch presentation. Many thanks Subscribed and rung the bell. Keep going
Wow! God is truly great! Blessing us with these magnificent eyes! God bless!
+LinkBulletBill If God was real, I'd be a lot richer.
Awesome! Come on, don't be that guy.
LinkBulletBill Hey, I'm just saying...
Awesome! One can not prove that God doesn't exist; however, I feel the evidence proving that he does seems to be overwhelming.
+LinkBulletBill One can not prove that god does exist. Until that day comes, science overtakes everything.
This reminds me Of the orange stuff you see when you close your eyes but when you then focus on them they go away kinda like when I keep looking at the lighthouse the colors are there but when I look away it disappears
Gestalt psychology and whole unit configurations. The total is greater than the sum of its parts. Very cool gestalts.
I can’t believe you used black magic on my eyes.
No surprise in what was happening here, but Destin (as always) does an incredible job of presenting the concept. Great job!
My first reaction was, "what!? What did you do to me!" haha, that color trick was very cool.
Okay this video start was worth the subscription.
Very cool
Destin, you are one of the very few dudes in the entire internet who could make me click on a video with the title "YOU WON'T BELIEVE YOUR EYES!".
This intro has to be one of my favorites, thanks for breaking that 4th wall Destin haha :)
Is that the Talking Mouse from Narnia? You're a nut! Lovin' every minute of Smarter Every Day. Destin, you Rock!
He is a great scientist! Thanks to younalso for this video
The best thing about this channel is that all his experiments observations and experiments are originally started by Destin with his own experience which is something very difficult to be done on youtube on a regular basis.❤
i wonder if other animals have similar persistance of vision
+Dennis Davis That may depend, exactly what biological factor determines the persistance and how can it be improved? Also, what advantages would it have on an animal if it was smaller? when does the duration of the persistance stop being relevant for anything practical? I could imagine other animals having a longer persistance duration, some primitive animal, i can also imagine an animal that needs a shorter persistance rate and a faster "refresh rate" if there is such a thing, perhaps a predator which relies on identifying his prey in water in a turbulent situation, and i also wonder if there is such a thing as an "exposure rate".
+Nyx & Hemera I think dogs would require a faster frame rate in a television to really watch it. Their shorter persistence of vision apparently gives them sharper perception of movement.
+Dennis Davis Simple answer: Yes.
A part of the persistence comes from the chemical reaction in your eyes - the cones and Rods receive light and send neurotransmitters to the nerve cells.
This take a bit of time, and the cons/rods also don't have an unlimited supply of the reacting chemical - thus when you look at very one-colored scenes, the eye gets tired pretty fast and that particular color fades out.
if you wear Red glasses for example, after some time, you will notice that the scene doesn't look all that red any more.
But if then you take them off everything appears to be blue.
Another factor is the brain it self, as it is filtering out a huge punch of the visual information to not overload your conciousness. (That also leads to some strange phenomenon with people who's blindness origins from the brain, not the eye: Jumpscares work on them, but they have no clue why they got frightened :P )
Also there's a funny fact with eyes and brain, when you wear glasses that turn vision upside down, after a while the vision will be normal and when you take them off it will be upside down.
It varries a lot based on belence of rods and cone.
Just as an example flicker fusion in humans occurs in the lower 20s hrz because our vision is very sensitive to color but not to light or motion.
For dogs flicker fusion is above 60hrz because while less sensitive to color their vision is more sensitive to motion and light.
I love how the captions at 5:20 make it clear that the professor has a British accent
This is the same concept as a cathode ray tube I believe. Awesome video!
Much better content than Discovery show Time Warp.
*_IF TEN MILLION FIREFLIES_*
Tae ka muna
only 1 like?
You beat me to it
Also like your content
why
Chupachups Nestle lmao only sea weebs will know
1:34
Those are littered all throughout Finland; usually at a far larger size and in "richer" parts. In the gaming section of Idea Park's Prisma I saw that thing advertising their products (it was far higher quality than that thing, and had nice colour), and the first time I ever saw it was at PixelArcade (some modern arcade where you play VR games), it was at Iso-Omena (I think that was the name of the shopping centre; haven't been there since 2018). I remember seeing one at GameStop at some point, but GameStop was decimated.
We believe our eyes but don't believe you.😂😂😂😀
Brain can make us see things which are not there , but can brain also make us not see things that are there?
yes, its called Blindness and Being in a Dark Room
Yes. Damage to the parietal lobes of the brain (from stroke or trauma) can result in hemispatial neglect. This is where your eyes are still sending visual signals to your brain, but the damage to the brain keeps it from getting processed correctly. As a result, you will simply not be aware of things on either the right or left side of your visual field and ignore it as if it weren't even there!
You only percieve 0,01 % of reality - divide that with 5 (senses) and you got your reality right there. You see nothing - we are all blind
Yess... With some magic mushrooms and lsd.
RELIGION!
That's it. I'm getting a degree in electrical engineering and computer science.
You are gonna get a DEGREE? Degree as in the 1½ degrees rotated after each moment of refresh of those arxels? I'm sorry, I'll find myself out.
I would like to major in electrical engineering
How did you know this topic would be something you'd learn in that degree?
I never would have guessed it myself before but this happened to be a topic in a 3rd year course (just a small part of it though).
This is old tech(POV displays) even for 2015. HAAS used to sell them to fit in wheels of motor racing cars to display advertising, and that was back in the 90's.
Feeling a little smarter today. Thank you :)
lol that was awesome at the beginning with the colors haha
the whole video was awesome
Wow I didn't even think about that. So other creatures might see all of that differently?
5:12 Casually calls Dr. Strangelove via Skype
Ah, can't see the bible verse at the end! The recommended video overlay at the end is covering it.
Guess I'll just read the whole chapter! Lol. Thanks for providing such AWESOME content!
Absolutely LOVE this video and channel!! Very good explanations, experiments, and comparative examples that most people can comprehend! :D
Thanks for being an awesome human being Destin!
Also I'm not a religious person, but I do like the quote from your pay-off:
Matthew 6:22-23
22 “The eye is the lamp of the body. So, if your eye is healthy, your whole body will be full of light, 23 but if your eye is bad, your whole body will be full of darkness. If then the light in you is darkness, how great is the darkness!
+Thomas van den Heuvel BTW the video misspells Matthew as "Mathew"
+Thomas van den Heuvel I do love those send-offs as well. The Bible is a very good book if you're looking for inspiration and story even if you aren't Christian. I've never read the whole thing but there are some great pages that I have turned.
+Thomas van den Heuvel Great way to tell that people with visual disability is full of darkness... what a lame quote.
I made an inverted one, consisting in enclosed concentric circles illuminated by leds. There is a spinning CD over it with a slot letting light passing through.
I am familiar with persistence of vision but you didn’t mention retinal fatigue in reference to the illusion with the photograph. Another very interesting visual phenomenon.