Add Yahoo as a preferred source to see more of our stories on Google. Dr. Kristine Dalton is an optometry and vision researcher at the University of Waterloo. (Kristine Dalton - image credit) Kristine ...

Kristine Dalton has been in Italy taking in the Paralympics Games before they wrap up on Sunday. But she's not a spectator. Her work has changed the Games and how athletes compete against each other.

Click to open image viewer. Prior to undertaking construction of the Hubble Space Telescope (HST) the Lockheed Missile and Space Company built a full-scale mockup in 1975 for conducting various ...

Let’s face it, our brains and eyes can be easily tricked into believing that something is real, even when it isn’t. That’s where visual illusions come into play; these images are designed to exploit ...

Visual illusions are images that can fool even the most observant eyes. These illusions play tricks with the human brain, and the images test how attentive one’s eyes are. Visual illusions are loved ...

Motion is characterized by a series of positions an object traverses over time. An object presented sequentially at two positions, with a time delay between them, is sufficient for us to perceive ...