(Recommended)Popular Videos : [Veritasium] Can You Solve This Shadow Illusion?
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(Recommended)Popular Videos : [Veritasium] Can You Solve This Shadow Illusion?
https://www.youtube.com/watch?v=liqF6EamiE4
Playtime Comments : [Veritasium] Can You Solve This Shadow Illusion?
yu********:
2:42 "What we're looking at there is actually an image of the Sun" "Really??" * Looks at the sun to check if it's circular *
Pa*******:
3:00 was inspirational. Derek is such an amazing teacher/mentor. I just love how he brought out the answer from that lady.
Xe*****:
2:00 Man, what a straight-up, honest individual. I wish the world had more people like him.
BP****:
1:03 "It must be the sun..." Derek: :D! THAT'S RI-- "...playing tricks with my mind" Derek: SO CLOSE
PA*:
3:18 Fantastic angle of the subject of the video...
Fr**********:
2:43 when she turned around to look at the sun to be sure
Di*********:
And here I am, in 2020, in the middle of a global pandemic, at 2:07 am, watching a video that is 9 years old cause youtube recommended it.
Je*********:
We had a partial eclipse in Arizona sever years ago at about 5:00 pm. The sun was low in the sky, and as the light passed through the small holes in the bushes, it created hundreds of crescents all over the wall.
I stopped at 2:14, till now guessed everything correctly. I have an explanation till now. EDIT Watched, okay I was wrong, I thought that it’s actually a triangle but so blurred on that distance that it looks like a triangle.
Top Comments : [Veritasium] Can You Solve This Shadow Illusion?
fe*******:
not one time was the camera focussed :/
Da*********:
Comments here:
50% cool 50% why no focus
Sw****:
New vid title: A look through the eyes of a drunk bystander
b*:
You needed a second camera man, this was so frustrating to watch
P:
Everyone “We see a circle!” Camera man “Not on my watch you won’t!”
Ja*******:
this camera is less focused than me in chinese school
Ma**:
Your videos encouraged me to pursue physics. :D
BC********:
I found this out when we had that eclipse back in 2017, all the shadows from the leaves on the trees were little crescents, because that was the shape of the sun at that time. Super cool!
Lu***********:
=_= Come on now the thumbnail is clickbait. You won’t cast that shadow with that large of a triangle.
EDIT: Lol I see the video was posted in 2011. It’s a product of its time then, I guess.
Pr****:
didnt see any of the shadows. out of focus
Ra**********:
When we were in 6th standard we were told that light travels in straight line and now in 12th standard we were told that it bends from it’s path. Well no doubt light has learnt to bend as it grows up.
Po*****:
I learn more from your channel than I do at school. Well done, man!
Ro***********:
I love how Derek doesn't tear people down, but builds them up.
Av**********:
I'm so glad this guy is really inclusive and allows people with visual impairments to hold the camera
Co***************:
How can you know for certain It's a circle if THE CAMERA IS NEVER FOCUSED
Oh********:
Don't do drugs kids or you will have the skills of that camera man
Su******:
Youtube: makes a new algorithm Veritasium: Ok so I'm gonna do what's called a pro gamer move.
Je**********:
I once saw a video about this. The teeny tiny holes of sunlight that manage to sneak through a trees leaves, during a solar eclipse those tiny splashes of light turn into a crescent moon shape
Ju***********:
This was the coolest effect during the eclipse
Ab********:
When solar eclipse happened in Indonesia few months ago, I saw shadows turn into crescent shape.
Mo*********:
Cameraman was Stoned by vitamin-D.
ma****:
An animation that explains how the sun rays travel to create this would have been helpful.
Ch*******:
Wow was the camera man also watching which shadow appears and forgot that he is holding a camera and he need to focus on the shadows. Maybe shoot in automatic setting that might give better result
Sp*********:
You could highlight this by using a rectangular spotlight and demonstrating a rectangular image - otherwise one could postulate that an out-of-focus triangular hole would appear circular as observed. Kind of like a positive control.
Ba*******:
2011: I want the best recommendation 2015: I said the best 2019: perfection
Su******:
“I learned something today Derek “ And I’ll pretend that i saw that image
Ri********:
Bring the card near the wall and u will find a triangle. Now where did the image of sun go?. I tried this...
Xi*******:
Wow, it's blurred. The video is playing tricks in my mind.
Mi************:
Camera Obscura. I have some fond memories of it from when I was a kid. The window to my room was facing an office building with big, glass windows. You could see everything going on in the office just by looking out. The usual, people going about their day, talking, walking, working, sitting or standing. But in the window of my room there were those really heavy-duty solar blinds that didn't permeate a lot of light, so in order to see those people I had to roll up the blinds and stare at them, which was kinda awkward and creepy now that I think about it. So one day I read about the camera obscura and so I punctured a hole in one of the blinds. Ever since then, every morning, with the right conditions, I could see a movie playing out on the wall of my room right opposite the window. All in reverse, like a strange, fairy-tale world where everything was upside down. It wasn't like a movie-quality sharp image or anything, but it was enough for me to see all the upside-down people going about their upside-down duties and their upside-down lives every morning. I imagined their struggle to eat and drink, to walk upside-down and to keep all of their possessions stuck to their desks nailed to the ceiling. It was like a glimpse into a world that was out there, but it was almost like you had to close your eyes to see it. A real world, in almost every sense of the word, but also so alien that it could only exist in my mind and nowhere else. A sensation more than fact, but based on something that was really there, something that I knew didn't violate any physical laws or logic. Just a completely different perspective on the same thing I saw when simply looking out the window. And now, every time I try and imagine what someone else sees and thinks, I go back to that feeling I got from looking at the image projected from my little camera obscura. That whatever I take for granted and know to be true can feel so alien and strange to another person. And I wish everyone else had a little camera obscura with them at all times. Just so they could see what I saw all those years ago.
Sa********:
i think you are both wrong! well the reason can be explained again with a hypothetical pinhole camera. if we consider an infinitesimal hole where only one photon can pass, every image will pass to the sensors perfectly but reversed. since piercing such a pinhole is practically impossible, even a very small point pierced will let more than one photon passing through. in this case one single point on the image will correspond more than one place on sensors which results the phenomena we call blur. this is why we use lenses instead of holes in modern cameras. same principle applies here, in a certain distance, which is out of focus of sun rays, will land so inaccurately it will produce a blur, which means a less detailed triangle: the circle. this is also why if you shorten the distance of pierced paper enough you will have a more accurate triangle not a circle. or basically cut a bigger triangle.
[Veritasium] We gathered comments about popular videos and looked at them in summary, including play time, and order of popularity.
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