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Of or pertaining to the branch of physics that studies the properties and behavior of light. This includes how light interacts with matter and the instruments used to detect it.

Contributors in Optics



Physics; Optics

The study of light at atomic and molecular level.

Rochester Cloak

Physics; Optics

Rochester Cloak is an optical device that makes solid objects disappear, similar to the magic power of Harry Potter's 'invisibility cloak' that makes things disappear in front your eyes. ...


Physics; Optics

A surface, such as glass coated with a metal, that reflects light. Mirrors gather light in reflecting telescopes.


Physics; Optics

The condition of being nearsighted. Myopia can be corrected with glasses. It can be corrected by exercise also.


Physics; Optics

A piece of glass that is shaped in such a way as to form an image. Lenses work by changing the direction of light.

Focal length

Physics; Optics

The distance from the surface of a lens or mirror to the point where the light rays come together to form a clear image.


Physics; Optics

An instrument that allows objects that are not in the direct line of sight to be seen.

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