(Nanowerk Spotlight) Conventional pigments produce colors by selectively absorbing light of different wavelengths. Red ink, for example, appears red because it absorbs strongly in the blue and green ...
A day in the life of a mixed-up inventor becomes an introduction to color combinations and tricks of the eye in this zany picture book. Priceman (Emmeline at the Circus) gives characteristic zing to ...
Laser self-mixing interferometry (SMI) harnesses the phenomenon of optical feedback by reinjecting a fraction of a laser’s output back into its cavity. This reinjection leads to an interference effect ...
A head-scratching optical illusion challenges the perception of color and how the brain plays tricks on us. In an image created by the UK contact lens vendor Lenstore, a series of lilac letters ...
A MIND-boggling optical illusion appears to show different colored circles with viewers encouraged to guess what color they all are. The puzzle is a color illusion created by University of Texas ...
A MIND-BLOWING optical illusion has been created by a University of Texas professor. David Novick manages his own color illusion website and often shares photos of the illusions he creates. A ...
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