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angular frequency

Overview page. Subjects: Mathematics — Physics.

A quantity proportional to the frequency of a periodic phenomenon but having the dimensions of angular velocity. The angular frequency in radians per second = frequency in hertz × 2π...

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beats

Overview page. Subjects: Physics — Mathematics.

A periodic increase and decrease in loudness heard when two notes of slightly different frequency are sounded at the same time. If a note of frequency n is heard at the same time as a note...

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Bessel function

Overview page. Subjects: Physics — Mathematics.

Functions that provide solutions to Bessel's equation. These are of the form , of which the simplest is the Bessel function of the first kind

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binary prefixes

Overview page. Subjects: Computing — Physics.

A set of prefixes for binary powers designed to be used in data processing and data transmission contexts. They were suggested in 1998 by the International Electrotechnical Commission (IEC)...

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cathode-ray tube

Overview page. Subjects: Physics — Computing.

(CRT)

A display device in which a beam of electrons (cathode rays), emitted by an electron gun, is focused and deflected to a series of specific positions on the phosphor-coated...

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caustic

Overview page. Subjects: Computing — Physics.

(in optics) The curve or surface formed by the reflection of parallel rays of light in a large-aperture concave mirror. The apex of the caustic lies at the principal focus of the mirror....

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CERN

Overview page. Subjects: Computing — Physics.

(Conseil Européen pour la Recherche Nucléaire)

The European Organization for Nuclear Research, which is situated close to Geneva in Switzerland and is supported by a number of...

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circle

Overview page. Subjects: Mathematics — Physics.

A closed curve every point on which is a fixed distance (the radius) from a point (the centre) within the curve. The diameter is a line that joins two points on the circumference and passes...

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converge

Overview page. Subjects: Physics — Mathematics.

(series)

The infinite series a 1+a 2+a 3 +… is said to converge to a limit L if for every ɛ>0 there exists an N such that, for all Note that for...

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curl

Overview page. Subjects: Physics — Mathematics.

For a vector function of position V (r)=V x i+V y j+V znull...

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