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The branch of science concerned with the properties of matter and energy and the relationships between them.

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Physics > Lasers

beta particle

Physics; Lasers

An electron that shoots out at very high speed from the atoms of some radioactive elements.


Physics; Lasers

A device that sends out a very narrow and intense beam of light. The color of laser light depends on how much energy is added to the atoms.


Physics; Lasers

Theodore Harold born 1927. American scientist who invented the first working laser in 1960. Laser in helpful in the treatment of cancer.


Physics; Lasers

An instrument used to interfere waves, i.e. to superimpose waves in order to extract information about them. It can be used in the fields of astronomy, fiber optics, engineering ...

laser physics

Physics; Lasers

The study of lasers.

reversible tractor beam

Physics; Lasers

A tractor beam is a technique that uses a light beam to attract one object to another from a distance. The term was originally coined by E. E. Smith as an update to his earlier ...