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Physics

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

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Physics > Optics

periscope
Physics; Optics

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

coma
Physics; Optics

Aberration inherent to certain optical designs or due to imperfection in the lens or other components which results in off-axis point sources such as stars appearing distorted, ...

concave
Physics; Optics

Curving in or hollowed inward, as opposed to convex, such as concave lens, concave mirror, etc.

convex
Physics; Optics

Curving out or bulging outward, as opposed to concave, such as convex lens, convex mirror, etc.

concavo-convex lens
Physics; Optics

The lens have one side concave and the other convex; have greater curvature on the concave side than on the convex side.

harmonic wave
Physics; Acoustics

Periodic wave containing only one frequency component.

harmonic wave
Physics; Acoustics

Periodic wave containing only one frequency component.

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