An optical illusion featuring a hidden fox confused users online. Shared on X, it challenged people to spot the fox in 5 seconds.

Creative coding and visual illusions in Rust.

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Nonlinear optics is the study of how intense light interacts with matter. The optical response of a material usually scales linearly with the amplitude of the electric field. At high powers ...

Op Art, also known as optical art, is a type of art that features optical illusions. The way that lines, shapes, space and colour are used can fool our eyes and brain to see movement that is not ...

Optics and photonics covers the entire electromagnetic spectrum from high-energy gamma rays and X-rays, through the optical regime of ultraviolet, visible, and infrared light, to long-wavelength ...

The file initially posted on 2 February 2017 was replaced on 11 May 2017 to update the History section. Superseded ...