Our brain and eyes can play tricks on us—not least when it comes to the expanding hole illusion. A new computational model ...

Today’s optical illusion is challenging viewers to find a hidden "5" among a sea of "2s." The tricky pattern plays with human perception, making it hard to spot the odd number. Can you find it?

For those that love optical illusions – and a good explanation for the mind-bending properties of them – finding one you haven't seen before is a real treat. And that's just happened with this (I ...

This optical illusion challenges your observation skills by hiding a "55" among a pattern of "33" pairs. The brain's pattern ...

For centuries, optical illusion puzzles have fascinated and mystified us, playing clever tricks on how we perceive the world. These captivating images aren’t just fun—they offer a glimpse into ...

Think you have what it takes? Let’s find out! Not all optical illusion pictures with hidden images are easy—this one is designed to challenge even the sharpest minds. At first glance ...

Escape reality by stepping into a world of wacky photo ops and optical illusions. The immersive experience – which has already captured the minds of 1.5 million yearly visitors worldwide – is housed ...

Keynes held that the economy can suffer extended periods of high unemployment because of deficient aggregate spending. A contraction in spending results in businesses having excess inventories and ...

Optical techniques are methods that use light to probe or control matter. One prominent example is optical spectroscopy, which includes such methods as pump–probe spectroscopy, Raman ...

This vibrant picture presents a challenging optical illusion with numerous elements, including water, boats, and clouds, making it difficult to spot the hidden face. The key to finding it lies in ...

These optical clocks are still being assessed, but already now, some are 100 times more accurate than cesium clocks. They will therefore become the future basis for the worldwide definition of the ...