Dictionary » E » Expansions

Expansions

Expansion

1. The act of expanding or spreading out; the condition of being expanded; dilation; enlargement.

2. That which is expanded; expanse; extend surface; as the expansion of a sheet or of a lake; the expansion was formed of metal. The starred expansion of the skies. (Beattie)

3. Space thought which anything is expanded; also, pure space. Lost in expansion, void and infinite. (Blackmore)

4. Enlargement or extension of business transaction; especially, increase of the circulation of bank notes.

5. (Science: mathematics) The developed result of an indicated operation; as, the expansion of (a _ b)^2 is a^2 _ 2ab _ b^2.

6. The operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston.

7. (Science: astronomy) The enlargement of the ship mathematically from a model or drawing to the full or building size, in the process of construction.

expansion is also used adjectively, as in expansion joint, expansion gear, etc. Expansion curve, a curve the coordinates of which show the relation between the pressure and volume of expanding gas or vapor; especially.

a cut-off valve, to shut off steam from the cylinder before the end of each stroke.

origin 3e4

L. Expansio: cf. F. Expansion.

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Re: Re:

... not OBSERVED. No, this paper by Demuth et al. (http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0000085) reports that "expansions outnumber contractions on the human, chimp, mouse, rodent, and ingroup branches" and that "Along the lineage leading to humans, ...

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by Cat
Thu Jul 04, 2013 5:05 pm
 
Forum: Evolution
Topic: CHALLENGE: Why should there be an “origin of species”?
Replies: 16
Views: 9165

Re: Re:

... not OBSERVED. No, this paper by Demuth et al. (http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0000085) reports that "expansions outnumber contractions on the human, chimp, mouse, rodent, and ingroup branches" and that "Along the lineage leading to humans, ...

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by thoffnagle
Mon Jul 01, 2013 5:35 pm
 
Forum: Evolution
Topic: CHALLENGE: Why should there be an “origin of species”?
Replies: 16
Views: 9165

About Lysosomes

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by MrMistery
Mon Feb 04, 2008 9:01 pm
 
Forum: Cell Biology
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