Guide a piece of chalk onto a sidewalk square, and see where imagination can lead, all while adding color and whimsy to the ...

Hopscotch and doodles with sidewalk chalk are one of summer’s welcome pops of color. But at the West End “W.E.” Chalk Fest, ...

Hughes, the Chalk It Up! founder, said the 29th annual event took place on a "picture perfect" Saturday. Around 150 artists took part, starting at 9 a.m. when they were issued their free box of chalk ...

How Two Neuroscientists View Optical Illusions The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception.

A study found that radiologists who have years of training to ignore visual distractions were less susceptible to the Ebbinghaus illusion.

Craig Neil's art is an example of line art optical illusions, where an image is formed by intricate lines of varying thicknesses. While up close it may look like a stripy canvas, the image appears ...

Medical imaging experts are adept at solving common optical illusions, according to new research. The research is the first to show that people can be trained to do better at solving visual ...

Jessica Moyes, an art teacher at Sharon Elementary in Newburgh, has been turning out some pretty impressive sidewalk chalk art.

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