- published: 12 Feb 2013
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Symmetry (from Greek συμμετρεῖν symmetría "measure together") generally conveys two primary meanings. The first is an imprecise sense of harmonious or aesthetically pleasing proportionality and balance; such that it reflects beauty or perfection. The second meaning is a precise and well-defined concept of balance or "patterned self-similarity" that can be demonstrated or proved according to the rules of a formal system: by geometry, through physics or otherwise.
Although the meanings are distinguishable in some contexts, both meanings of "symmetry" are related and discussed in parallel.
The precise notions of symmetry have various measures and operational definitions. For example, symmetry may be observed
This article describes these notions of symmetry from four perspectives. The first is that of symmetry in geometry, which is the most familiar type of symmetry for many people. The second perspective is the more general meaning of symmetry in mathematics as a whole. The third perspective describes symmetry as it relates to science and technology. In this context, symmetries underlie some of the most profound results found in modern physics, including aspects of space and time. Finally, a fourth perspective discusses symmetry in the humanities, covering its rich and varied use in history, architecture, art, and religion.
Hatred (or hate) is a deep and emotional extreme dislike, directed against a certain object or class of objects. The objects of such hatred can vary widely, from inanimate objects to animals, oneself or other people, entire groups of people, people in general, existence, or the whole world. Though not necessarily, hatred is often associated with feelings of anger and disposition towards hostility against the objects of hatred. Hatred can drive oneself to extreme actions. Actions upon people or oneself after a lingering thought are not uncommon. Hatred can result in extreme behavior including violence, murder, and war.
Philosophers have offered many influential definitions of hatred. René Descartes viewed hate as an awareness that something is bad combined with an urge to withdraw from it. Baruch Spinoza defined hate as a type of sorrow that is due to an external cause. Aristotle viewed hate as a desire for the annihilation of an object that is incurable by time. ((Hatred is sorrow with the accompanying idea of an external cause. (When something, or someone, gives us sorrow, we feel hatred towards that thing or person.)) David Hume believed that hate is an irreducible feeling that is not definable at all.
Data ( /ˈdeɪtə/ DAY-tə, /ˈdætə/ DA-tə, or /ˈdɑːtə/ DAH-tə) are values of qualitative or quantitative variables, belonging to a set of items. Data in computing (or data processing) are often represented by a combination of items organized in rows and multiple variables organized in columns. Data are typically the results of measurements and can be visualised using graphs or images. Data as an abstract concept can be viewed as the lowest level of abstraction from which information and then knowledge are derived. Raw data, i.e., unprocessed data, refers to a collection of numbers, characters and is a relative term; data processing commonly occurs by stages, and the "processed data" from one stage may be considered the "raw data" of the next. Field data refers to raw data collected in an uncontrolled in situ environment. Experimental data refers to data generated within the context of a scientific investigation by observation and recording.
The word data is the plural of datum, neuter past participle of the Latin dare, "to give", hence "something given". In discussions of problems in geometry, mathematics, engineering, and so on, the terms givens and data are used interchangeably. Such usage is the origin of data as a concept in computer science or data processing: data are numbers, words, images, etc., accepted as they stand.
As still as a tomb, where only memories roam
No birds sing here, yet silence speaks volumes
About tortured times, when man was blind
And innocence died at the hands of genocide
Lest we forget
Prayers fall upon ears of the dead
Drowning the bleat of sacrificial lambs
Condemned to an eternity of bleeding
Trapped in the teeth of demons
Fifty years on, the oppression remains
Haunted by the ghosts of the slain
And now we walk this cursed ground
The magnitude of suffering's like a shroud
Let the death camps remain
As epitaphs to pain
Or have we learnt nothing despite their deaths?
Do we credit ourselves too much intelligence?
Is the harbinger of pain but a heartbeat away?