At first glance, these images look exactly the same, that of a princess in a palace garden, along with one of her staff, ...

Optical illusions occur because of the way our brain processes visual information. The human vision system is complex but not ...

An optical illusion is a visual phenomenon where the brain misinterprets what the eyes perceive. It occurs when the ...

This is a picture of a peacock, which looks pretty regular on first look. However, there is a face of a man hidden inside the ...

The triangle is a small instrument made of a metal rod bent into a triangle shape that is open at one corner. While small, ...

Multicolored optical switching is an important phenomenon with potential applications ... region of the band structure involved. For example, the transient transmission spectra reveal a split ...

The unprecedented control over light offered by these materials is now generating considerable interest among scientists worldwide, as it enables a wide range of new optical phenomena not ...

Observations from high-flying aircraft revealed that thunderclouds act as natural particle accelerators, emitting energetic ...

The shape of a vortex emerges in familiar phenomena such as tornadoes and ... providing another option for manipulating matter. For example, the light could give researchers access to a precise ...

My Samsung Galaxy S25+ arrived earlier than expected--or wanted--but that wasn't the biggest surprise I got with this device.

Upconversion is a phenomenon in which low-energy photons are combined to produce a higher-energy photon. This process requires the successive absorption of two photons to emit a high-energy photon. As ...