If you would like to reproduce an image of a work of art in MoMA’s collection, or an image of a MoMA publication or archival material (including installation views, checklists, and press releases), ...

Optical illusions challenge the brain's perception by presenting visually perceived images that differ from reality. This article introduces a puzzle featuring a grid of the number 45, with a ...

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 ...

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