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A **current meter** is oceanographic device for flow measurement by mechanical (rotor current meter), tilt (Tilt Current Meter), acoustical (ADCP) or electrical means.

In physics, one distinguishes different reference frames depending on where the observer is located, this is the basics for the Lagrangian and Eulerian specification of the flow field in fluid dynamics: The observer can be either in the Moving frame (as for a Lagrangian drifter) or at in a resting frame.

Mechanical current meters are mostly based on counting the rotations of a propeller and are thus rotor current meters. A mid-20th-century realization is the **Ekman current meter** which drops balls into a container to count the number of rotations. The **Roberts radio current meter** is a device mounted on a moored buoy and transmits its findings via radio to a servicing vessel. **Savonius current meters** rotate around a vertical axis in order to minimize error introduced by vertical motion.

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**Current** may refer to:

- Air current, a flow of air
- Ocean current, a current in the ocean
- Current (stream), currents in rivers and streams

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Current

* Current* is the fifth album by funk-disco band Heatwave, released in 1982 on the Epic label. It was produced by Barry Blue.

All songs written and composed by Rod Temperton, except where noted.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Current_(album)

In mathematics, more particularly in functional analysis, differential topology, and geometric measure theory, a **k-current** in the sense of Georges de Rham is a functional on the space of compactly supported differential k-forms, on a smooth manifold *M*. Formally currents behave like Schwartz distributions on a space of differential forms. In a geometric setting, they can represent integration over a submanifold, generalizing the Dirac delta function, or more generally even directional derivatives of delta functions (multipoles) spread out along subsets of *M*.

Let denote the space of smooth *m*-forms with compact support on a smooth manifold . A current is a linear functional on which is continuous in the sense of distributions. Thus a linear functional

is an *m*-current if it is continuous in the following sense: If a sequence of smooth forms, all supported in the same compact set, is such that all derivatives of all their coefficients tend uniformly to 0 when tends to infinity, then tends to 0.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Current_(mathematics)

A **hymn meter** or **metre** indicates the number of syllables for the lines in each stanza of a hymn. This provides a means of marrying the hymn's text with an appropriate hymn tune for singing.

In the English language poetic meters and hymn meters have different starting points but there is nevertheless much overlap. Take the opening lines of the hymn *Amazing Grace*:

Analyzing this, a poet would see a couplet with four iambic metrical feet in the first line and three in the second. A musician would more likely count eight syllables in the first line and six in the second.

Completing that verse:

the hymnist describes it as 8.6.8.6 (or 86.86).

Conventionally most hymns in this 86.86 pattern are iambic (weak-strong syllable pairs). By contrast most hymns in an 87.87 pattern are trochaic, with strong-weak syllable pairs:

In practice many hymns conform to one of a relatively small number of meters (syllable patterns), and within the most commonly used ones there is a general convention as to whether its stress pattern is iambic or trochaic (or perhaps dactylic). It is rare to find any significant metrical substitution in a well-written hymn; indeed, such variation usually indicates a poorly constructed text.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Meter_(hymn)

In poetry, **metre** (**meter** in US spelling) is the basic rhythmic structure of a verse or lines in verse. Many traditional verse forms prescribe a specific verse metre, or a certain set of metres alternating in a particular order. The study and the actual use of metres and forms of versification are both known as **prosody**. (Within linguistics, "prosody" is used in a more general sense that includes not only poetic metre but also the rhythmic aspects of prose, whether formal or informal, that vary from language to language, and sometimes between poetic traditions.)

The metre of most poetry of the Western world and elsewhere is based on patterns of syllables of particular types. The familiar type of metre in English-language poetry is called **qualitative metre**, with stressed syllables coming at regular intervals (e.g. in iambic pentameters, usually every even-numbered syllable). Many Romance languages use a scheme that is somewhat similar but where the position of only one particular stressed syllable (e.g. the last) needs to be fixed. The metre of the old Germanic poetry of languages such as Old Norse and Old English was radically different, but was still based on stress patterns.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Metre_(poetry)

**Middle-distance running** events are track races longer than sprints, up to 3000 metres. The standard middle distances are the 800 metres, 1500 metres and mile run, although the 3000 metres may also be classified as a middle-distance event. The 1500 m came about as a result of running three laps of a 500 m track, which was commonplace in continental Europe in the 20th century.

This was a popular distance, particularly indoors, when imperial distances were common. In 1882, American Lon Myers set what was then a world record at 600 yards (548.64 metres), running it in 1:11.4. The event was a common event for most American students because it was one of the standardized test events as part of the President's Award on Physical Fitness. In the early 1970s, Martin McGrady was unsuccessful at longer or shorter races, but made his reputation, set world records and drew many fans to arenas to watch him race elite Olympians at this odd distance.

This middle distance length is rather uncommon, and is mainly run by sprinters wishing to test their endurances at a longer distance. Like other middle distance races, it evolved from the 600 yard race. The 600 m is also used as an early season stepping stone by 800 m runners before they have reached full race fitness.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Middle-distance_running

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