The optical illusion occurs because people are used to interpreting shadows as coming from an overhead light source. But that's not necessarily the orientation of spacecraft. In many satellite photos, ...

Abstract: Multiple space-division switches based on semiconductor optical amplifiers (SOAs) can be cascaded to obtain larger switching fabrics. The authors present a general analysis of optical ...

As one of the abstract styles developing in the 1960s, Optical illusion (or Op) Art features games of lines and geometric shapes in both black and white—like in the case of Bridget Riley, Jesús Rafael ...

Artists and scientists have been creating optical illusions for centuries. Here are 35 mind-bending examples that prove you ...

Abstract: We investigate the performance and design of free-space optical (FSO) communication links over slow fading channels from an information theory perspective. A statistical model for the ...

An optical illusion shared on Facebook puzzled viewers as they struggled to spot the hidden woman cleverly disguised within ...