UC Berkeley scientists used lasers to create a new color, “olo,” letting humans see a vivid blue-green never seen before.

we turn to a white sheet of paper, the middle and short cones will compensate for the activity of the long cone and create a perceived green color. This color illusion is called a negative ...

So, when looking at the green part of the illusion, it is the green and blue cones that get fatigued and fail to respond properly when the white screen flashes up. But the red cones that were not ...

But, amongst them all, there are three hidden empty cones. You have a strict timeline of 8 seconds to solve this optical illusion and find the hidden empty cones. If you do so within the time ...

The color, dubbed olo, is described as an intensely saturated teal. Researchers say it might have applications in ...

Children are snow fighting and adults are skating in the snow. There is an ice cream cone hidden in this optical illusion puzzle. Will you be able to do it within the time limit? We believe you ...