This challenging optical illusion quiz will put your eyes to the test and you have just five seconds to solve it - but how ...

Optical illusions use light, colour and patterns to cause a viewer to see something that's completely different to reality ...

This surreal optical illusion may look like a dreamy forest scene, but what you see first, trees, a face, a house, or the ...

Physicists at the Max Planck Institute of Quantum Optics (MPQ) have engineered the lightest optical mirror imaginable. The novel metamaterial is made of a single structured layer that consists ...

A woman shared a picture which can say a lot about you and your hidden personality traits depending on what you see first. So tell us, what do you see first in the optical illusion?

In this optical illusion, it seems there are five versions of Shawn Reischauer, including one who is nowhere near a mirror. Business Insider Subscribe Newsletters ...

Optical mirrors generally include spherical mirrors/reflectors, flat mirrors, and aspheric mirrors. But basically, it is through optical coating or direct selection of metal materials. Ecoptik (also ...

Rembrandt may have traced his celebrated self-portraits from optical projections created by assemblies of mirrors or lenses, a new analysis suggests.. Two U.K.-based researchers -- Francis O'Neill ...

The resulting optical mirror specifically reflects the light of a certain wavelength. Reflectivity of a Bragg mirror depends on the materials, the number of layers applied, and their thicknesses.

Optical Supports’ “Versatile” Mirror Cell improves airflow around the primary mirror of most telescopes. Available in five sizes — 4/4.25/4.5, 6, 8, 10, ...

Meanwhile, work by Hockney, Falco and other researchers has demonstrated that knowledge of optical techniques, such as the use of curved mirrors and camera obscuras, was known to artists in Europe ...