Hiding in the shadows between the colors we see everyday are weird, impossible shades, colors that you shouldn't be able to see and generally don't... unless you know how. Here's a simple guide to seeing impossible and imaginary colors.
Youtuber rasmusab has posted a video that's as adorable as it is thought provoking. In it, a small orange kitten with white feet appears transfixed by an 8.5 x 11 printout of the famous "rotating snakes" illusion (just one variation on the "peripheral drift illusion" — see an example for yourself below). The kitten…
Yes, blood. Blood out the eyes. It's a display that's as impressive as it is shocking — in a last-ditch effort to ward off predators, several species of horned lizards will increase the blood pressure in vessels surrounding their eyes, to the point that they actually rupture, gushing five-foot fountains of…
Swedish artist Sandra "psychosandra" Holmbom pulls off some pretty remarkable optical illusions with makeup, but holy crap does this one take the cake — with an eldritch emphasis on "optical."
Last week, a softball-sized eyeball washed ashore in Florida. At the time, researcher Charles Messing guessed the eye belonged to a swordfish. A day later, Deep Sea News' Craig McClain got in touch with Sönke Johnsen, "an expert on everything visual in marine organisms" (awesome, right?). Johnsen told McClain the…
Holy heck, people. Now that is an eyeball. Beach-walker Gino Covacci encountered the monstrosity yesterday while ambling about the Florida coast, and while scientists have yet to identify the creature from whence it came, the consensus seems to be that whatever it was, it was big.
It's no secret that putting various colors together makes them look different. Put off-white next to black, and it looks completely bright. But did you know that, with the Munker Illusion, you can make something change color completely, right in front of your eyes?
It's not unusual for optical illusions to create afterimages, ghostly reflections that show up after staring at something too long. This particular afterimage is a bit different. For one thing, it looks nothing like the original image. Also, it moves.
Adanson's jumping spider has eight eyes, but the way they're put together doesn't actually seem that useful for, well, seeing things. These spiders use a previously unknown trick to judge their surrounds and leap great distances...all thanks to blurry vision.
There's a reason that certain wavelengths are known as "visible" light, because those are the wavelengths that humans and most animals even remotely like us can see. But one mammal can see in ultraviolet light...and it's all because of snow.
This image of a tartan ribbon is the first-ever permanent color photograph, and it was taken 150 years ago yesterday by the legendary scientist James Clerk Maxwell. So just how did he create colors that would last for over a century and a half?
Hiding in the shadows between the colors we see everyday are weird, impossible shades, colors that you shouldn't be able to see and generally don't...unless you know how. Here's a simple guide to seeing impossible and imaginary colors.
The age of the bifocal is over: a firm called PixelOptics has designed a pair of glasses for which the focal length can be adjusted at the touch of a button. How long until they can do so much more?
Science fiction is terrific at helping you imagine how you'd enhance, hack, and upgrade your own body — especially your eyeballs. Humans have been trying to improve on the sense of sight since 1300, when spectacles were invented. What comes next? Take a look at our list of some of the vision enhancement tools that…