This page illustrates that our
senses cannot always be trusted. Our mind is the final arbiter of truth.
count the black dots
Are the horizontal lines
parallel or do they slope?
how many legs?
Can you see the three faces?
What does the sign say? Are you sure?
Do you see the face? Or an Eskimo?
Do you see a cube missing a corner?
Or do you see a small cube in a big one?
Is the blue side on the inner left back or the outer left front?
Do you see a musician or a girl's face?
Do you see an old man's face or two lovers kissing?
How many faces can you find?
Can you find the other 4 wolves in the rocky cliffs?
Who's that?
Looks like Ex-President Bill Clinton
and his Vice President Al Gore, right?
Wrong... It's
What do you see?
Yes, there's a face... and the word liar.
Is the left center circle bigger?
No, they're both the same size.
It's a spiral, right?
No, these are a bunch of independent circles.
Keep staring at the black dot...
After a while the gray haze around it will appear to
shrink.
Can you find the dog?
Stare at the black lightbulb for at least 30
seconds.
Then immediately stare at a white area on the screen
or at a sheet of paper. You should see a glowing light bulb!
How many colors do you see?
There are only 3 colors: White, green, and pink.
There seem to be two different shades of pink, but there is only one pink.
What's On A Man's Mind?
The Neverending Stairs
Do you see a couple or a skull?
Impossible Triangle
Is it moving and shimmering?
Stare at the gray dot in the center...
Now move your head forward and backward.
As your head moves closer to your monitor
and then back away from your monitor, the circles
will appear to be spinning.
Think you could build that?
The Queen
Stare at the negative image of the Queen for about 1 minute
without moving your eyes. Then look at a blank sheet of
paper
and you'll see the queen.
Are the purple lines straight or do they bend?
Right side up it's a giant bird...
Upside down it's a guy catching a big fish...
The instructions from Hell
Strange Terrace
The Red, White, and Blue...
Stare at the center of the weird flag for about 1
minute.
Don't move your eyes. Then look at an empty white sheet
of paper, anf you'll see the
red, white, and blue flag.
Impossible Monument
Can you find the 13 hidden faces?
Which soldier is taller?
None. They're all the same size.
Is it a duck or a bunny?
An island, right?
Turn it upside down, and you'll see
what it really is: a crater.
Think you could build that?
Looks like a spiral, right?
Wrong... It's a bunch of independent circles
Short-Circuit Your Brain
Look at the chart above and say the COLOR of the word,
not the word itself.
Why is it so difficult? Because the right half of your brain
is trying to say the color, while the left side of
your brain
is trying to say the word.
The Skin-Crawling Spiral
Please wait a moment until the spiral has finished loading.
When it's spinning smoothly, stare at the center of
the spiral
for about a minute. Then look at the back of your hand...
It will appear to be twitching and moving, as though
bugs were crawling under your skin!
WARNING! This one will give you a headache!
The Face On Mars
Photo taken by Viking 1 in 1976.
Is it really a face or just an illusion?
Here's the most recent picture that has been
taken of the same rock formation. Doesn't really
look like a face anymore, does it?
The Face On Earth
Take a look at this picture of some ancient ruins...
Notice anything unusual about the mountains?
When you tilt the picture, you suddenly see a huge face
Doesn't this remind you a little of the Face
on Mars?
Are these lines straight?
the missing dollar
Three men decided to split the cost of a hotel
room. The hotel manager gave them a price of $30.
The men split the bill evenly, each paying $10, and went to their room.
However, the hotel manager realized that it was a Wednesday night, which meant
the hotel had a special: rooms were only $25. He had overcharged them $5!
He called the bellboy, gave him five one-dollar bills and told him to return it
to the men.
When the bellboy explained the situation to the men, they were so pleased at
the honesty of the establishment that they promptly tipped the bellboy $2 of
the $5 he had returned and each kept $1 for himself.
So each of the three men ended up paying $9 (their original $10, minus $1 back)
totalling $27, plus $2 for the bellboy makes $29.
Where did the
extra dollar go?
Can you see the dragon, the face and the box?
The F Illusion
How many Fs do you see in the text below?
FINISHED FILES ARE THE RE-
SULT OF YEARS OF SCIENTIF-
IC STUDY COMBINED WITH THE
EXPERIENCE OF YEARS.
After you counted the Fs, scroll down...
How many did you count? 3?
Wrong, there were 6. Don't believe it?
Scroll back up and check. Or scroll down
for the solution...
Our brains are trained to overlook the word OF.
If you saw all 6 Fs right away, you're a genius.
Most people see only 3 Fs. Some people see 4.
This Is Freaky!
Stare at the blue trash bag in the doorway
for at least 1 minute, and you will see something
really freaky. Don't cheat. You must stare at the
blue trash for at least a minute, and then your eyes
will adjust and you'll see it.
How many horses do you see?
The Face of Jesus
Stare at the four black dots in the center
of the image for 60 seconds. Then quickly close your eyes,
while facing a lamp of a bright window. With your eyes closed,
you will see a white circle with the face of Jesus inside it.
The Numbers Riddle
Using only whole numbers, and starting with the number 1, to what number would
you have to count before finding a number with the letter "a" in the
spelling?
Do you see the 2 old lovers, the 2 singers, and the vase?
Can you find the 9 people in this picture?
Dr. Seuss' Lost Tongue Twister
See if you can do this. Read each line aloud.
This is this cat
This is is cat
This is how cat
This is to cat
This is keep cat
This is a cat
This is dumbass cat
This is busy cat
This is for cat
This is forty cat
This is seconds cat
Now go back and read the THIRD word
in each line from the top.
Betcha you can't resist passing it on. LOL!
Are they walking up the stairs, or down?
Life
Perpetually ascending
staircase.
How can the man go up
all the time and come back to the same place over and over?
The diagonal lines are parallel.
Impossible triangle.
The Vertical lines are both the same
length.
There
are no gray spots at the corners of the squares.
Three-prong fork.
Ambiguous cubes
All the bumps are identical.
The one in the lower right corner is upside-down,
The image to the right is rotating.
Wavy Squares? No!
The background of concentric circles makes the squares appear distorted.
Warped Square?
There are no curved lines in this figure.
Blind Spot Experiment
The
retina is the part of the eye covered with receptors that respond to light. A
small portion of the retina where the optic nerve connects to the brain has no
receptors. An image that falls on this region will not be seen. Close your
right eye. With your left eye, look at the L below. Slowly move your
head closer or further away from the screen while looking at the L. The R
will disappear when your head is approximately 50 cm (20 in) from the screen.
You can repeat the experiment with your right eye by looking at the R.
Pinhole Experiment
Take
two pieces of heavy paper. On one of them make three holes with a pin spaced
about 2 mm apart (1/16 inch) from each other. On the
other one, make a single hole with the pin. Place the card with the three holes
next to your eye and look through the holes at the card with one hole. You will
see three holes instead of one.
Stereoscopic Vision
Stereoscopic
vision makes depth perception possible. By crossing your eyes while looking at
these two pictures, the brain perceives a combined image with a central section
on a different plane. (Hint: Keep your eyes level with the pictures. Place your
fingertip between the pictures on the line that says "BOA" and look
at your fingertip while you bring your finger toward your eyes. When your fingertip
is approximately 7 inches (20 cm) from your eyes, the pictures in the
background will combine into a 3-dimensional picture.)
.
.
.
.
Two-keyboard Pipe Organ
Color Vision Test
People
with normal color vision can perceive numbers formed
by patterns of colored dots in every circle. If you
do not see some of the numbers, you should have your eyes checked and consider
working in a job where color discrimination is not
critical.
Approximately
6%-8% of people of European descent, 4%-6% of people of Asian descent, and
2%-4% of people of African descent have some type of defective color vision.
|
|
|
|
|
|
|
|
|
25
29
45
56
6
8