Invaders!

Invaders! is a collection of science fiction stories by Gordon R. Dickson. It was first published by Baen Books in 1985 and was edited by Sandra Miesel. Most of the stories originally appeared in the magazines Astounding, Cosmos, Orbit, Planet Stories, If, Fantasy and Science Fiction and Space Stories.

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References

Invader

Invader, Invaders, The Invader or The Invaders may refer to:

Arts and entertainment

Film

Music

Print

The Number of the Beast (album)

The Number of the Beast is the third studio album by the English heavy metal band Iron Maiden, released in March 1982. It was their first release to feature vocalist Bruce Dickinson and their last with the late drummer Clive Burr.

The Number of the Beast met with considerable critical and commercial success and was a landmark release for the band—becoming their first album to reach No. 1 in the UK Albums Chart, and be certified platinum in the US. The album also produced the singles "Run to the Hills" and "The Number of the Beast", the former of which was the band's first top-ten UK single. The album was also controversial, particularly in the US, due to the religious nature of its lyrics and its artwork.

Since the release of The Number of the Beast and its subsequent tour, The Beast on the Road, "The Beast" has become an alternate name for Iron Maiden and was later used in the titles of some of their compilations and live releases, including Best of the Beast and Visions of the Beast.

Reduction

Reduction, reduced, or reduce may refer to:

Science

Chemistry

Reduced ring

In ring theory, a ring R is called a reduced ring if it has no non-zero nilpotent elements. Equivalently, a ring is reduced if it has no non-zero elements with square zero, that is, x² = 0 implies x = 0. A commutative algebra over a commutative ring is called a reduced algebra if its underlying ring is reduced.

The nilpotent elements of a commutative ring R form an ideal of R, called the nilradical of R; therefore a commutative ring is reduced if and only if its nilradical is zero. Moreover, a commutative ring is reduced if and only if the only element contained in all prime ideals is zero.

A quotient ring R/I is reduced if and only if I is a radical ideal.

Let D be the set of all zerodivisors in a reduced ring R. Then D is the union of all minimal prime ideals.

Over a Noetherian ring R, we say a finitely generated module M has locally constant rank if is a locally constant (or equivalently continuous) function on Spec R. Then R is reduced if and only if every finitely generated module of locally constant rank is projective.

Redox

Redox is a contraction of the name for chemical reduction-oxidation reaction. A reduction reaction always occurs with an oxidation reaction. Redox reactions include all chemical reactions in which atoms have their oxidation state changed; in general, redox reactions involve the transfer of electrons between chemical species. The chemical species from which the electron is stripped is said to have been oxidized, while the chemical species to which the electron is added is said to have been reduced. Oxygen is not necessarily included in such reactions as other chemical species can serve the same function.

The term "redox" comes from two concepts involved with electron transfer: reduction and oxidation. It can be explained in simple terms:

Although oxidation reactions are commonly associated with the formation of oxides from oxygen molecules, these are only specific examples of a more general concept of reactions involving electron transfer.