An optical illusion is a visual phenomenon where our perception of an image differs from objective reality. This image is perceived as a visual impression of a swirling tunnel or vortex effect. These ...

Jan. 1 (UPI) --The first few days of the new year are expected to bring heavy snow and frigid temperatures in the form of a polar vortex to the eastern United States. The rain that pummeled the ...

Optical vortex beams, characterized by their helical phase fronts and orbital angular momentum (OAM), are pivotal in applications such as high-capacity communication, optical manipulation, and quantum ...