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 ...

Optical illusions are proven tools to understand the way the brain functions. It helps in bringing out hidden personality traits of which you are unaware. Optical illusions are also fun.

Optical illusions challenge our perception and creativity. There's a hidden face in the image that only those with a sharp eye and imaginative thinking can find in 8 seconds. Tricks like rotating ...

Now that looks set to change thanks to the work of Gordon Li and Midya Parto at the California Institute of Technology in Pasadena, and colleagues, who have designed and tested an all-optical computer ...

RECENT articles 1–3 in Nature have discussed the explanation of optical illusions and, in particular, Gregory's theory of constancy scaling. According to this theory, illusions are produced in ...

Optical illusions are an incredible way to measure your IQ and sharpen your observation skills. These visual challenges test your brain’s ability to process complex images, revealing just how ...

Players could boast about having 20/20 vision if they complete this tricky optical illusion in time. This image shows a pile of plain rocks and rubble. At first glance, it might seem like nothing ...

SPOKANE, Wash. -- A local optical shop is changing up its business model to meet customers wherever they may be. Stahl Optical near 5th Avenue and Chandler Street on Spokane's South Hill is ...