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 ...

A team of researchers with members from Wuhan University and the University of Texas has created an artificial material that offers both negative refraction and no reflection. In their paper published ...

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 ...

Properties of waves - AQA Transverse and longitudinal waves - AQA Infrared radiation absorption and radiation by a surface - AQA Sample exam questions - waves - AQA ...

This exhibition highlights 24 objects from the collection in which light—as substance and subject—is central. Encompassing important practices and movements from the 20th century to the present, these ...