As you scan your eyes over this grid, black dots seem to appear in the periphery of your focus. But they disappear and are replaced by white dots when you look directly at them. Why does it do this? Scientific theories abound, but the real answer is no one knows.
You've probably seen animated GIFs that blink between negative and positive images. They trick your brain into thinking the images are moving. That's the concept behind this GIF of two necker cubes, which has the added feature of arrows placed in the centers of the cubes. When the arrows point up, the cubes appear to… READ THE REST
Kelli Rogers recorded this magical clip while paddleboarding with her grandchildren on the Salt River in Arizona's Tonto National Forest. Some might have you believe that this is just illusory motion but it's more likely that these are holy horses. The neigh-sayers are just trying to stirrup trouble. READ THE REST
The Rakotzbrücke devil's bridge was constructed to create the illusion of a circle when it is reflected in the water beneath it. Check out some stunning images of the optical illusion here. The bridge was commissioned in 1860 by the knight of the local town and is located in Kromlau, Germany's Kromlauer Park. Visitors can… READ THE REST
We thank our sponsor for making this content possible; it is not written by the editorial staff nor does it necessarily reflect its views. When you're out camping or hiking, you may sometimes run into emergencies where a standard battery-operated flashlight just won't cut it, let alone your smartphone's flashlight. In these cases, you'll be glad you were carrying a… READ THE REST
A sharp, reliable knife is one of those tools most folks don't think about carrying around, but there are countless everyday situations where a blade might be useful. You can use it to slice through hard-to-open packages, start fires, clear brush while hiking, cut food during camping trips, and much more. Still, a utility knife can be… READ THE REST
Is there any feeling as satisfying as the one you get after demolishing a tough stain? A clean house is a happy house, but anyone who's only wielded a vacuum cleaner or a broom knows it's surprisingly hard to maintain that aura of cleanliness for more than a moment. All those cleaning supplements can add up; the last element you're… READ THE REST