Recently, a remarkable discovery has been made. Ancient Chinese scrolls, well-preserved and steeped in history, are shedding ...

At the interface between two facets of an artificial crystal, sound waves can be transmitted in the opposite direction to that expected, and undergo no reflection. Such wave behaviour could have many ...

Exploiting a novel technique called phase discontinuity, researchers have induced light rays to behave in a way that defies the centuries-old laws of reflection and refraction. The discovery has led ...

Students use mirror equations to determine the position and type. Students use mirror equations to determine the position, type, and size of mirror images for curved mirrors mathematically. Optical ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 11, No. 8 (Aug. 15, 1925), pp. 498-502 (5 pages) ...

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. from a ...

Current issues are now on the Chicago Journals website. Read the latest issue.Founded in 1936 by George Sarton, and re-launched by the History of Science Society in 1985, this annual thematic journal ...

In my previous Photography Snapshot, I discussed the importance of light and how it bounces to create images. We discovered that the most primitive form of photography was the camera obscura, which ...

Figure 1: Analytical study of one-dimensional chains of resonant point scatterers. Starting from this unit cell that creates the single negative property, we build two new configurations just by ...

How diamonds reflect and refract light impacts how they appear at different angles. Refraction occurs when light changes ...