Physics

Physics

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

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petal

Biology; Flowers

One of the outer appendages of a flower, located between the outer sepals and the stamens. Petals often display bright colors that serve to attract pollinators.

analogue signal

Entertainment; TV

A type of signal that encodes voice, video, or data transmitted over wire or over-the-air that is commonly represented as an oscillating wave. An analog signal may vary in ...

overhead lighting (mobile)

Advertising; Billboard advertising

An industry standard means of lighting a billboard copy area that uses multiple overhead lights attached to the vehicle structure and allows the poster ad area to be viewed in ...