Light is refracted when it enters a material like water or glass. Depending on the density of the material, light will reduce in speed as it travels through, causing it to change direction. Ray ...

Abstract: Aberrations are imperfections in optical systems, particularly lenses, that cause deviations from ideal image formation. They signify inaccuracy in performance from the predictions made by ...

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

A DISCUS SIGN on the determination of equilibrium diagrams by X-ray methods arranged by the Institute of Physics was held at the Royal Institution, London, on September 22. The chairman, Sir Lawrence ...