00:00Let's start easy, shall we?
00:02Boy, nobody answers no to that.
00:05Can you tell how many triangles there are in this image?
00:16If you said 8, then you got it right!
00:19Only 20% of people get this one correctly, though.
00:23And voila!
00:24This looks like a ladder, but it isn't!
00:27Can you count how many squares there are here?
00:37The correct answer is 13.
00:39There are 10 simple squares, then you should count that every 4 squares in this image make
00:45a new one, so the total is 13.
00:49Pay close attention to this one.
00:51Behind all of these little black dots, there's an image.
00:54Are you part of the 1% of people that can see it?
01:05It's a Minion!
01:07Congrats if you spotted that!
01:09Here's another one in this style.
01:11Can you see what's hidden here?
01:20It's a Ninja Turtle!
01:22Honestly, did you need to be a bit of a ninja to see that one?
01:26And what about this one?
01:36My my, Homer Simpson!
01:38Now, there's something hidden behind black stripes.
01:42How's your x-ray vision working?
01:52You got it if you said it's one of the dragons from How to Train Your Dragon!
01:57That's cute!
01:59I bet you'll get confused with this one.
02:01Can you guess how many squares there are INSIDE this big square?
02:08Yikes, this one really confused me.
02:15In total, there are 27 squares.
02:17Here's how it works.
02:19Start with the 13 larger 1-component squares.
02:22They're the most obvious ones.
02:24Then move on to the squares that have 2 components.
02:27There's a total of 4 of those.
02:30There are also 4 squares that have 4 components.
02:33Then there are 4 squares that have 7 components.
02:36And there is one square that has 9 components.
02:40Last but not least, there's the big square that gathers all the other squares, totaling
02:4427 squares.
02:46Woo!
02:47So, we'll move on to some hard-level optical illusions, okay?
02:53This first one is called the Impossible Triangle.
02:56But wait, what makes it so impossible?
02:58You have 7 seconds to figure that out.
03:09The so-called Penrose Triangle is also known as the Impossible Triangle because it could
03:14never exist in reality.
03:16This magical triangle defies the laws of Euclidean geometry.
03:20If you follow the ball sliding on the surface of the triangle from the top point, you'll
03:25notice something strange.
03:27It looks like the left side of the triangle is extending away from the viewer, while the
03:31right side is closer to you.
03:34The Penrose Triangle is the type of geometric figure that can only exist as an optical illusion.
03:40Because this is what it would look like if we dismember it.
03:43Not a triangle at all, huh?
03:46Can you stare at this parrot's eye for 15 seconds?
03:50Just keep staring at it.
03:51I'll tell you when you can close your eyes.
03:54You're about to witness another example of an afterimage.
03:573, 2, 1, and close your eyes.
04:02Can you see a red parrot?
04:05Isn't it amazing that even though this parrot is black and white, you have the illusion
04:10of seeing the color red?
04:12Again, this is just your brain trying to guess the color of something.
04:17This one is basically a magic trick.
04:19Keep staring at this portrait of Harry Potter for about 7 seconds.
04:23Don't worry about keeping track of time, I'll do that for you.
04:27I need you to stare at this dot.
04:29You can blink, but just keep staring at the dot.
04:32When I say so, I need you to close your eyes and blink with your eyes closed.
04:37You know, just keep squeezing your eyes while they're closed.
04:40Okay, you can close your eyes.
04:42Now blink.
04:43A portion of Harry Potter will slowly start to appear in your mind's eye.
04:48Can you see it?
04:49That's witchcraft right there!
04:53Take a look at this image.
04:54It looks like the square in the middle is breathing, right?
04:58Like it's growing in size and then shrinking.
05:01What if I told you that it's just rotating but not changing its size?
05:05Here's what's happening.
05:07This illusion is called motion binding.
05:09It happens when our brain tries to predict the movement of one of the elements in the
05:13image.
05:14Crazy stuff!
05:16This one's another example of a motion binding illusion.
05:20These four bars seem to be moving in parallel with each other, right?
05:24No, wrong!
05:25They're all part of the same moving square.
05:28Here's what's happening behind the scenes.
05:30Our brain just gets confused.
05:33Don't these snakes move beautifully?
05:36Except that, uh, they're actually stationary.
05:39This classic optical illusion is caused by repeating asymmetrical patterns together with
05:45specific color schemes.
05:46The illusion mixes lighter colors, like yellow and white, with darker shades of blue and
05:51black.
05:52This combination makes your retina send signals to your brain claiming that these circles
05:57are moving.
05:58If you want to debunk this illusion and see things as they really are, you need to stare
06:03straight at one part of the image.
06:06This way, you'll see that the rotation will slowly come to a stop.
06:11So how many bars can you count here?
06:13I know you can do this, don't give up now!
06:21This illusion has left the Internet baffled.
06:24People have counted as many as 11 bars, but most people count between 8 and 7 bars.
06:30According to the creator of this image, there are only 6 complete bars.
06:34Try counting from top to bottom, and you'll notice that the upper bars are real.
06:39But by the time you get to the 6th bar, things start to get blurry and confusing.
06:44That's because the last two bars are incomplete, so when you try making them out, they appear
06:49to multiply and only leave you more confused.
06:53If you trace your pointer down the 7th and 8th bars, you'll be able to see that they
06:58are incomplete.
07:00They were only put there to confuse you.
07:03Can you tell if the dark blue lines are parallel to each other or inclined?
07:08They sure look crooked, but in reality, they're not.
07:12This classic optical illusion was first described over a hundred years ago.
07:17But it wasn't until the 1970s that it got its current name – the café wall illusion.
07:23A guy named Steve Simpson noted a similar effect on the wall of a café in Bristol,
07:28and here we are.
07:29Now, let's see how this works.
07:31First, let's blur the image a little bit.
07:34Oh, a little bit more.
07:36There you go.
07:37This way, you'll be able to see that the dark blue lines are parallel to each other.
07:42If you look closely, the little black and white bricks at the intersection of wide lines
07:47are what makes this illusion possible.
07:50In addition to that, the curved elements inside the blue lines help to make the elusive effect
07:55even stronger.
07:57Up next, take a look at this black square criss-crossed with perpendicular white lines.
08:03Make your best guess – are these really scintillating or not?
08:08If you look attentively, you'll notice that the white dots at the intersection of the
08:12grid shift their color from white to gray and back.
08:16When you concentrate on a particular dot, you see that it's white, but as soon as
08:20your attention wanders, the dot turns gray.
08:23That's the Hermann grid illusion.
08:25Amazing, isn't it?
08:27We can take this illusion one step further by positioning white dots at the intersection
08:32of gray lines.
08:34All are placed on top of the black background.
08:37If you look at this image long enough, you'll notice black dots starting to pop up at the
08:41intersections of the grid, creating a scintillating effect.
08:46Another name for this illusion is a simultaneous light contrast illusion.
08:50As you perceive the dots as white at one moment and then, almost immediately, you see them
08:55as black.
08:56Well, these sure made my eyes angry.
08:59They don't like being fooled, so I think I'll let them rest now.
09:04That's it for today!
09:06So hey, if you pacified your curiosity, then give the video a like and share it with your
09:10friends!
09:11Or if you want more, just click on these videos and stay on the Bright Side!
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