Created in Brazil and spread globally by the MyShelter Foundation, this eco-friendly alternative uses solar refraction in PET ...

At f/8, every lens produces an identical 10.7-micron diffraction blur on your sensor regardless of focal length or aperture ...

Nearly everyone learns that a rainbow is sunlight split into colours by raindrops, which ...

One of the physical properties of sound is its wave-like behavior. Diffraction, refraction, and interference are ...

Chapters 0:00 Science is littered with bad theories 0:56 Aristotle's mechanics was really bad 2:25 The crazy heat “fluid” theory, Caloric 5:53 The Luminiferous Aether 7:53 Newton's failure: ...

Refractive index (RI) is an important parameter for describing the optical properties of materials and is closely related to sample morphology, density, stress, chemical composition, and other ...

Seismic energy propagates through media as waves and, under certain conditions, undergoes critical refraction. A critically refracted seismic wave travels along acoustic interfaces and generates new ...

Photography has everything to do with light. Therefore, the more we know how it behaves and interacts with our equipment, the greater the chance of getting a successful photo. This time, we are going ...

Researchers have generated high-quality atom diffraction data from graphene, which could lead to new ways to measure surface interactions. A beam of neutral atoms striking a material can produce a ...

A pulse of light sets the tempo in the material. Atoms in a crystalline sheet just a few atoms thick begin to move—not randomly, but in a coordinated rhythm, twisting and untwisting in sync like ...

Time-varying systems, materials with properties that change over time, have opened new possibilities for the experimental manipulation of waves. Contrarily to static systems, which exhibit the same ...