Circle

A circle is a simple shape in Euclidean geometry. It is the set of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves so that its distance from a given point is constant. The distance between any of the points and the centre is called the radius.

A circle is a simple closed curve which divides the plane into two regions: an interior and an exterior. In everyday use, the term "circle" may be used interchangeably to refer to either the boundary of the figure, or to the whole figure including its interior; in strict technical usage, the circle is only the boundary and the whole figure is called a disk.

A circle may also be defined as a special ellipse in which the two foci are coincident and the eccentricity is 0, or the two-dimensional shape enclosing the most area per unit perimeter squared, using calculus of variations.

Terminology

Spirit

The English word spirit, from Latin spiritus "breath", has many different meanings and connotations, most of them relating to a non-corporeal substance contrasted with the material body. It can also refer to a "subtle" as opposed to "gross" material substance, as in the famous last paragraph of Sir Isaac Newton's Principia Mathematica.

The word spirit is often used metaphysically to refer to the consciousness or personality. The notions of a person's spirit and soul often also overlap, as both contrast with body and both are believed to survive bodily death in some religions, and "spirit" can also have the sense of "ghost", i.e. a manifestation of the spirit of a deceased person.

The term may also refer to any incorporeal or immaterial being, such as demons or deities. In the Bible, "the Spirit" (with a capital "S"), specifically denotes the Holy Spirit.

Etymology

The English word spirit comes from the Latin spiritus, meaning "breath", but also "spirit, soul, courage, vigor", ultimately from a Proto-Indo-European *(s)peis. It is distinguished from Latin anima, "soul" (which nonetheless also derives from an Indo-European root meaning "to breathe", earliest form *h₂enh₁- ). In Greek, this distinction exists between pneuma (πνεῦμα), "breath, motile air, spirit," and psykhē (ψυχή), "soul" (even though the latter term, ψῡχή = psykhē/psūkhē, is also from an Indo-European root meaning "to breathe": *bhes-, zero grade *bhs- devoicing in proto-Greek to *phs-, resulting in historical-period Greek ps- in psūkhein, "to breathe", whence psūkhē, "spirit", "soul").

Mix

Mix, mixes, mixture, or mixing may refer to:

In mathematics, science, and technology

In electronics and telecommunications

Other uses in mathematics, science, and technology

Originality

Originality is the aspect of created or invented works by as being new or novel, and thus can be distinguished from reproductions, clones, forgeries, or derivative works. An original work is one not received from others nor one copied from or based upon the work of others.. It is a work created with a unique style and substance. The term "originality" is often applied as a compliment to the creativity of artists, writers, and thinkers. The idea of originality as we know it was invented by Romanticism, with a notion that is often called romantic originality.

The concept of originality is culturally contingent. It became an ideal in Western culture starting from the 18th century. In contrast, at the time of Shakespeare it was common to appreciate more the similarity with an admired classical work, and Shakespeare himself avoided "unnecessary invention".

Originality in law

In law, originality has become an important legal concept with respect to intellectual property, where creativity and invention have manifest as copyrightable works. In the patent law of the United States and most other countries, only original inventions are subject to protection. In addition to being original, inventions submitted for a patent must also be useful and nonobvious.

Spirit of Life

"Spirit of Life", number 123 in the Unitarian Universalist (UU) hymnal Singing the Living Tradition, is "by far the most commonly sung UU song" (excepting children's recessionals). It was written by Carolyn McDade in 1981. "An outsider examining UU worship practices would almost certainly regard 'Spirit of Life' as the standard UU anthem." It has been used to represent Unitarian Universalism in interfaith contexts, such as the 1993 centennial celebration of the Parliament of World Religions.

McDade does not call herself a Unitarian Universalist, rather "a woman of faith"-her community is a loose community of women.

References

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