Kid optical illusion
Optical Illusions | Optics for Kids
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What is an Optical Illusion?
Optical Illusions can use color, light and patterns to create images that can be deceptive or misleading to our brains. The information gathered by the eye is processed by the brain, creating a perception that in reality, does not match the true image. Perception refers to the interpretation of what we take in through our eyes. Optical illusions occur because our brain is trying to interpret what we see and make sense of the world around us. Optical illusions simply trick our brains into seeing things which may or may not be real.
Try out some of these illusions and discover just how tricky it can be for your brain to accurately interpret the images from your eyes. Click on any of the images below to begin your exploration of optical illusions.
Moiré
Are the pinwheels moving?
Answer: No, the wheels are not turning. The Moiré effect can produce interesting and beautiful geometric patterns.
Light Bulb
Stare closely at this light bulb for 25 seconds. Then immediately stare at a white wall or sheet of paper. What do you see?
Answer: You should see a glowing light bulb!
Elephant Legs
How many legs do I have?
Answer: Four
Teach
In this illusion you can see the word Teach and its reflection. Can you read the reflection too? What does it say?
Answer: Learn
The Animal
How many animals do you see in the image?
Answer: Look closely, you should be able to see a rabbit and a duck.
The Box and the Sphere
Keep your eyes on the dot. Is it in the front or in the back of the cube?
Ask a friend and see if they agree!
Color Blind
What number do you see in the circle?
Answer: You should be able to see the number 26, but people with various degrees of color blindess may only see the 2 or the 6.
Color Illusion
How many colors are present in the image?
Answer: One shade of green and one shade of red! <br /> <br /> It may look as if the two arms of the "X" use different shades of red, but in face the whole "X" only uses a single shade of red. Likewise, only one shade of green is present throughout the image.
Gradients
Which side of inset bar is darker?
Answer: They are both the same shade!
Hermann Grid Illusion
Count all the black dots you can see
Answer: There are no black dots. <br /> <br /> If you focus directly on each dot, you'll see that all of them are white.
Horizontal Lines
Are the horizontal lines sloping or straight?
Answer: All of the lines are straight.<br /> <br /> The black and white blocks are not aligned and thus fool your brain into thinking that the lines are sloping.
Kanizsa Triangle
How many triangles are present in the image?
Answer: There are no triangles.<br /> <br /> In reality there are only 3 V shapes and 3 shapes that look like Pac-Men.
Muller-Lyer Illusion
Take a very close look at the 2 vertical lines. Do you think one line is longer than the other?
Answer: They are the same size! Hard to believe; get out your ruler to measure the lines and see for yourself!
My Wife and My Mother-in-Law
How many figures can you see in the image below?
Answer: If you look closely, you can see both a young and an elderly woman. <br /> <br /> The picture, My Wife and My Mother-in-Law, is a good example of two images existing in one, and was published in 1915 by the cartoonist W.E. Hill.
Snakes
Are the circles moving in the image?
Answer: Look closely, they aren't moving.
Zollner Illusion
Do you think these lines are parallel?
Answer: They are parallel!
Refraction Illusion
Are both arrows pointing the same direction on the paper behind the glass?
Yes! This illusion demonstrations <a href="~/what-is-optics/refraction/">refraction</a>, the bending of light.
11 Optical illusions for kids
Optical Illusions for kids play with the way an object appears, through the use of colour, light, images and patterns to manipulate what our brains are perceiving.
why do we see them?
Our visual system has limits in tackling all the information our eyes take in. So our minds take shortcuts and our brain constantly chooses the most likely interpretation of what we see.
Check out some interesting optical illusions for kids below and let us know which one you liked best.
HOOT HOOT
They say that some of the greatest moments in life are unplanned.
What we see is the face of a mysterious owl staring back from the cup of a mans morning coffee.
What it really is? This optical illusion was created, as a result of two Hula Hoops (potato snacks) being dropped into the mug.
Read more.
MOVING SQUARES
Scroll this picture up and down and the squares will move.
How does this happen? One theory is that when you move your head back and forth, the alternating dark and light patterns can seem to cause the perception of movement.
Read more.
My Wife and My Mother-in-Law
The illusion is considered to be one of the most famous optical illusions in the world (dating back to 1915).
Some people see a young lady with her head turned towards the background while others see an elderly woman’s side profile.
What do you see? It’s almost impossible to see both at the same time!
Australian researchers asked 393 participants aged 18 to 68 to tell them who they saw in the optical illusion. The results, published in the August 2018 issue of Scientific Reports showed that the youngest set of people tended to see the wife first, while the oldest set of participants tended to see the mother-in-law first.
Read more.
Lightbulb magic
All you need to do is stare closely at this light bulb for 25 seconds.
Then immediately stare at a white wall or sheet of paper.
What do you see?
You should see a glowing light bulb!
SOULMATES
When you look at this image, what colour are the left and right hearts?
Well, The hearts are actually the same colour, it is the lines over them that are of different colours.
Image source.
SPINNING DANCER
Is the lady spinning clockwise or counter-clockwise? You may even see the figure suddenly spin in the opposite direction if you look closely.
Did you know this figurine is used to determine whether or not people are right-brain (creative) or left-brain (logical) dominant?
Viewers are told that if they view the dancer as standing on her left leg and spinning clockwise, then they are right-brain dominant (creative), and if they see the reverse (the dancer standing on her right leg and spinning counter-clockwise), then they are left-brain dominant (logical).
Read more.
So how does it work? It has to do with our visual cues and bistable perception. This occurs when visual cues are ambiguous and our brain tries to make sense of it.
A path between rice fields
A work by Japanese artist Makoto Aida titled AZEMICHI.
This photograph shows a young Japanese schoolgirl standing between two rice fields. The painting creates an optical illusion with the little girl’s parted hairline as it merges with the divide between the rice fields.
Read more.
Are you colourblind?
What number do you see in the circle?
Answer: You should be able to see the number 74, but people with red-green colour blindness see a 21. Those with total colour blindness see nothing.
For more colour blind test click here.
Direction confusion
Are both arrows pointing the same direction on the paper behind the glass?
What is happening? This image showcases the effects of refraction (the bending of light).
Read more.
DANCING DOG
Timing is everything.
Tell that to the man, busy reading his morning news.
I guess, “Dreams”, really do come true, doesn’t it?
Image source.
SPOT THE PREDATOR
In this image try finding the predator.
Then scroll down to the coloured version of the same image, and try again.
Why is it so easy this time? The reason is that the second image shows the surfaces according to the quality of light they reflect (not just their intensity), while in the first image you are only seeing the surfaces according to the amount of light they reflect.
In other words, your brain has a lot more information for making its decisions.
Read more.
If you liked our curated set of Optical Illusions for kids and are keen to learn more about Optics, join us now to receive an “Optics” box for your child next month. Sign up for our VIP Adventure to receive the first two boxes at HALF PRICE for $19/month. Join here.
Extra reading: check out our posts on 11 places to visit for your next science expedition and our blog on 11 best science fiction books for kids.
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😮 30 cool optical illusions: brain explosion | Interesting facts
We are used to taking the world around us for granted, so we do not notice how our brain deceives its own masters. The imperfection of our binocular vision, unconscious false judgments, psychological stereotypes and other distortions of world perception serve as a pretext for the emergence of optical illusions. There are a lot of them, but we tried to collect for you the most interesting, crazy and incredible of them.
Top Stunning Optical Illusions
Impossible Figures
At one time this genre of graphics was so widespread that it even got its own name - impossibilism. Each of these figures seems quite real on paper, but simply cannot exist in the physical world.
Impossible Trident
Classic Impossible Trident
Classic blevet is perhaps the brightest representative of optical drawings from the "impossible figures" category. No matter how hard you try, you will not be able to determine where the middle prong originates.
Another striking example is the impossible Penrose triangle.
Impossible triangle
It is also in the form of the so-called "endless staircase".
Infinite Penrose Stairs
And Roger Shepard's "impossible elephant".
Shepard's impossible elephant
Ames' room
Adelbert Ames Jr. was interested in optical illusions from early childhood. After becoming an ophthalmologist, he did not stop his research on depth perception, which resulted in the famous Ames Room.
Optical illusion "Ames Room"
How the Ames Room works
In a nutshell, the effect of the Ames Room can be expressed as follows: it seems that two people are standing in the left and right corners of its back wall - a dwarf and a giant. Of course, this is an optical trick, and in fact these people are of quite ordinary height. In reality, the room has an elongated trapezoidal shape, but because of the false perspective, it seems to us rectangular. The left corner is farther away from the visitors' view than the right corner, and therefore the person standing there seems so small.
The principle of the Ames room
Illusions of movement
This category of optical tricks is of the greatest interest to psychologists. Most of them are based on the subtleties of color combinations, the brightness of objects and their repetition. All these tricks mislead our peripheral vision, as a result of which the perception mechanism goes astray, the retina captures the image intermittently, spasmodically, and the brain activates the areas of the cortex responsible for detecting movement.
Floating star
It's hard to believe that this picture is not an animated gif-format, but an ordinary optical illusion. The drawing was created by Japanese artist Kaya Nao in 2012. A pronounced illusion of movement is achieved due to the opposite direction of the patterns in the center and along the edges.
"Floating Star" by Kaya Nao
There are quite a few such illusions of movement, that is, static images that seem to move. For example, the famous spinning circle.
Spinning circle
Or yellow arrows on a pink background: when you look closely, they seem to sway back and forth.
Moving hands
Caution, this image may cause eye pain or dizziness in people with weak vestibular apparatus.
Rays from the center
Honestly, this is a regular picture, not a gif! Psychedelic spirals seem to drag somewhere into the universe full of oddities and wonders.
Striped spirals
Flipping illusions
The most numerous and fun genre of drawings-illusions is based on changing the direction of looking at a graphic object. The simplest upside-down drawings just need to be rotated 180 or 90 degrees.
Nurse or old woman
Two classic flip-flop illusions: nurse/old woman and beauty/ugly.
Beauty or ugly
A more artistic picture with a twist - when rotated 90 degrees, the frog turns into a horse.
Horse or frog
Other "double illusions" are more subtle.
Girl/old woman
One of the most popular dual images was published in 1915 in the cartoon magazine Puck. The caption to the drawing read: "My wife and mother-in-law."
The most famous optical illusions: old woman and vase profiles
Old men / Mexicans
Elderly married couple or Mexicans singing to the guitar? Most see old people first, and only then do their eyebrows turn into a sombrero, and their eyes into faces. The authorship belongs to the Mexican artist Octavio Ocampo, who created many pictures-illusions of a similar nature.
Old men/Mexicans Octavio Ocampo
Lovers/dolphins
Surprisingly, the interpretation of this psychological illusion depends on the person's age. As a rule, children see dolphins frolicking in the water - their brain, not yet familiar with sexual relationships and their symbols, simply does not isolate two lovers in this composition. Older people, on the contrary, first see a couple, and only then dolphins.
Dolphins or lovers - another interesting optical illusion
The list of such dual pictures is endless:
The well-known Eskimo Indian
In the picture above, most people first see the Indian's face, and only then look to the left and distinguish the silhouette in a fur coat. The image below is usually interpreted by everyone as a black cat, and only then a mouse appears in its contours.
Cat or mouse?
A very simple upside-down picture - you can easily make something similar with your own hands.
Snow White or Sherlock Holmes?
Illusions of color and contrast
Alas, the human eye is imperfect, and in our assessments of what we see (without noticing it) we often rely on the color environment and the brightness of the background of the object. This leads to very interesting optical illusions.
Gray squares
Optical color illusions are one of the most popular optical illusions. Yes, yes, squares A and B are painted in the same color.
Squares A and B are actually the same color
This trick is possible due to the way our brains work. A shadow without sharp borders falls on square B. Thanks to the darker "environment" and smooth shadow gradient, it seems that it is much lighter than square A.
And here is the proof
Green spiral
There are only three colors in this photo: pink, orange and green.
The blue color here is just an optical illusion
Don't believe me? Here's what happens when you replace pink and orange with black.
Without a distracting background, you can see that the spiral is completely green
Is the dress white and gold or blue and black?
However, illusions based on the perception of color are not uncommon. Take, for example, the white and gold or black and blue dress that conquered the Internet in 2015. What color was this mysterious dress, and why did different people perceive it differently?
The explanation of the dress phenomenon is very simple: as in the case of gray squares, it all depends on the imperfect chromatic adaptation of our organs of vision. As you know, the human retina consists of two types of receptors: rods and cones. Rods capture light better, while cones capture color. Each person has a different ratio of cones and rods, so the definition of the color and shape of an object is slightly different depending on the dominance of one or another type of receptor.
Those who saw the white-and-gold dress drew attention to the brightly lit background and decided that the dress was in the shade, which means that the white color should be darker than usual. If the dress seemed blue-black to you, then your eye first of all paid attention to the main color of the dress, which in this photo really has a blue tint. Then your brain judged that the golden hue was black, brightened due to the rays of the sun directed at the dress and the poor quality of the photo.
Mysterious white and gold or black and blue dress
The actual dress was blue with black lace.
The dress turned out to be blue and black
And here is another photo that baffled millions of users who could not decide if it was a wall in front of them or a lake.
Wall or lake? (correct answer is a wall)
Disappearing circles
Optical illusions in the video
Ballerina
This crazy optical illusion is misleading: it is difficult to determine which leg of the figure is the supporting one and, as a result, to understand in which direction the ballerina is rotating. Even if you succeeded, while watching the video, the supporting leg can “change” and the girl seems to start to rotate in the other direction.
The most popular optical illusion "Ballerina"
If you can easily fix the direction of the ballerina's movement, this indicates a rational, practical mindset. If the ballerina rotates in different directions, this means that you have a stormy, not always consistent imagination. Contrary to popular belief, this does not affect the dominance of the right or left hemisphere.
Monster Faces
If you stare at the cross in the center for a long time, your peripheral vision will frighteningly distort the faces of celebrities.
Illusion "Monster Faces"
Optical Illusions in Design
Optical illusion can be a spectacular tool for those who want to spice up their home. Very often, “impossible figures” are used in design.
Learn more