"Why are there so many songs about rainbows?" sings Kermit the Frog in a song (about rainbows) called "Rainbow Connection" from 1979's "The Muppet Movie." And it's not just songs that feature rainbows ...

Rainbows are fascinating natural wonders. But do they actually have an end, or is it just an illusion? Let’s unravel the ...

People love the rainbow of ROYGBIV colors: red, orange, yellow, green ... Murdoch Consider the optical illusion that consists of a light rectangle next to a dark rectangle. Each rectangle contains a ...