beat

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Related to beating the bushes: beat the pants off, pale in comparison, without a hitch

beat

1. Physics the low regular frequency produced by combining two sounds or electrical signals that have similar frequencies
2. Prosody the accent, stress, or ictus in a metrical foot
3. Nautical a course that steers a sailing vessel as close as possible to the direction from which the wind is blowing
4. 
a. the act of scouring for game by beating
b. the organized scouring of a particular woodland so as to rouse the game in it
c. the woodland where game is so roused
5. Fencing a sharp tap with one's blade on an opponent's blade to deflect it

Beat

A variation in the intensity of a composite wave which is formed from two distinct waves with different frequencies. Beats were first observed in sound waves, such as those produced by two tuning forks with different frequencies. Beats also can be produced by other waves. They can occur in the motion of two pendulums of different lengths and have been observed among the different-frequency phonons in a crystal lattice.

One important application of beat phenomena is to use one object with an accurately known frequency to determine the unknown frequency of another such object. The beat-frequency or heterodyne oscillator also operates by producing beats from two frequencies.

beat

[bēt]
(physics)
The periodic variation in amplitude of a wave that is the superposition of two simple harmonic waves of different frequencies.

beat

i. A low-frequency vibration produced when two sources of vibration act on the same object at the same time. For example, in a multiengine airplane, if two engines have slightly different RPM, airframe vibrations produced by these engines will produce a very noticeable beat.
ii. When two waves are combined or superimposed, a beat occurs if two frequencies are not the same. Waves beat together to create the appearance of either a change in amplitude, if the frequencies differ by a few hertz (Hz), or new frequencies, called beat frequencies or heterodynes, if the original frequencies are far apart.
References in periodicals archive ?
The main reason SSI rolls are exploding is that SSI spends millions beating the bushes for new clients.
Brix, who is president of CRYSTEX, is beating the bushes for investors and R&D partners.
Said Manley, "I find that the old way of going on the road with your product, beating the bushes locally by traveling from city to city, is back.
They were beating the bushes for $8 million to $10 million, now suddenly they appear ready to settle for as little as $3 million," said Jan Castro, Managing Director of Pala Investments AG, advisor to Pala.
But a third indie, Litton Entertainment, is also starting to grab the attention of the industry after two decades of beating the bushes to scare up sales of the latest weekly fang-and-claw half-hour hosted by Jack Hanna.
Cash is rolling in, and companies are reinvesting and beating the bushes for talent.
Instead of blaming conservatives for the problem, Irving Leemon should be either beefing up the liberal shows for ratings or beating the bushes for liberal sponsors who don't care about ratings.
Matear's Timmins-based non-profit technology group has been beating the bushes for grassroots support for more than a year in its.
BIRDERS FLOCK TO SEE GROSBEAK: Bird lovers in southern Oregon have been beating the bushes with their binoculars hoping to catch a glimpse of a rare rose-breasted grosbeak, which has been seen hanging around a Medford bird feeder since Saturday.