It's common knowledge that humans and other animals are able to visually judge depth because we have two eyes and the brain compares the images from each. But we can also judge depth with only one eye ...

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A stereogram optical illusion is a fascinating visual puzzle that hides a 3D image within a 2D pattern. At first glance, it appears to be a random collection of repeating designs or colourful dots.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. 3D movies are a love-hate experience. You absolutely adore the ...

Journalist Bonnie Burton writes about movies, TV shows, comics, science and robots. She is the author of the books Live or Die: Survival Hacks, Wizarding World: Movie Magic Amazing Artifacts, The Star ...

New research, jointly-funded by Fight for Sight, has found that special eye tests could help identify which people living with dementia struggle most with judging distances, which is known to increase ...

So far, almost every autonomous vehicle we’ve encountered uses lidar to determine how far away things are, just as the winners of the DARPA Grand Challenges did back in the early 2000s. But not every ...

Our perception of how large or small things are in the world is systematically influenced for how we perceive distance or depth. This is most famously shown by the Ponzo Illusion (discovered by Mario ...