A leading education site has posted a school-themed optical illusion that it claims only one in 10 people can solve in under 13 seconds.
The puzzle shows a typical schoolroom scene with a bell hidden among the busy scene.
The twist? Puzzlers only have a short period of time to find it.
Visual challenges, such as noticing the difference between two images or recognizing patterns, are often part of IQ assessments, a series of standardized tests used to assess intelligence.
These puzzles are often timed and the IQ test from Mensa, an organization for people with exceptionally high IQs, challenges people to solve 35 increasingly difficult visual puzzles in just 25 minutes.
Test your visual acuity with this week’s visual challenge. Can you see the bell within 13 seconds? The answer to the puzzle is circled in the image below.
The puzzle shows a typical schoolroom scene, but with a hidden bell, and the twist that gives puzzlers only a short period of time to find it
Did you manage to find the bell within the time limit?
The puzzle posted by Jagran Jos this week, one bell can be seen in the busy library scene.
As with many optical illusion puzzles, there are a few ‘decoy’ details that look a lot like a bell, such as the yellow backpack on the student at the far right of the frame.
But the real one is very clear once you see it.
Don’t worry if you can’t complete the task.
Jagran Josh has tips to help: Limit distractions. Put your technology on silent and focus solely on the photo.
You can also zoom in on the image and view it in parts to get a closer look at the elements.
People have been creating optical illusion art since the beginning of history.
Research in 2010 found that Paleolithic cave artists in several caves in France deliberately confused woolly mammoths and bison in a similar manner to the famous duck and rabbit optical illusion.
And the ancient Greek philosopher Aristotle reported the optical illusion of “motion aftereffects” after watching waterfalls.
This visual illusion occurs when a stationary object appears to be moving in the opposite direction from the moving object you were previously looking at.
In the 19th century, the invention of photography and devices such as the stereoscope stimulated the study of visual illusions.