Water usually flows downward, but something strange happened under Greenland’s ice sheet when a deluge punched through the ...

Put your eyes to the test with this new stereogram illusion! Stare at the pattern and reveal the hidden 3D surprise.

While stereoscopic photo pairs are best seen with a viewing device, the hidden 3D image can also be spotted with the naked eye, similarly to those in the trippy "Magic Eye" designs of the 1990s.

Put your eyes to the test with this new stereogram illusion! Stare at the pattern and reveal the hidden 3D surprise.

If you would like to know what the hidden 3D image is in the picture above, you can email me at MindCube3D@gmail.com and I will tell you. But will you believe me if you cannot see it for yourself?

Physics Secret images hidden in mirrors and windows using liquid crystals A technique borrowed from ancient "magic mirrors" uses liquid crystals to conceal images from all but the right kind of ...

In 1847, French photography pioneer Charles Nègre created a 3D self-portrait using a "witch's mirror" - a clever piece of 19th-century surveillance technology. These convex mirrors, popular in ...

The Depth Pro system doesn't bother with all that though, yet is able to generate a detailed 3D depth map at 2.25 megapixels from a single image in 0.3 seconds via a standard graphics processing unit.

If you would like to know what the hidden 3D image is in the picture above, you can email me at MindCube3D@gmail.com and I will tell you. But will you believe me if you cannot see it for yourself?