Mallard's law - Revision history

MassimoNespolo at 16:44, 20 December 2017

2017-12-20T16:44:07Z

BrianMcMahon: Tidied translations and added German and Spanish (U. Mueller)

2017-11-16T12:36:23Z

Tidied translations and added German and Spanish (U. Mueller)

BrianMcMahon: Style edits to align with printed edition

2017-05-15T16:15:29Z

Style edits to align with printed edition

MassimoNespolo: internal links

2015-04-05T09:16:53Z

internal links

MassimoNespolo: Ja

2008-12-07T09:50:19Z

MassimoNespolo at 08:18, 15 June 2008

2008-06-15T08:18:55Z

MassimoNespolo at 14:43, 25 May 2007

2007-05-25T14:43:58Z

BrianMcMahon at 10:11, 25 May 2007

2007-05-25T10:11:05Z

BrianMcMahon at 09:56, 25 May 2007

2007-05-25T09:56:02Z

MassimoNespolo: link

2006-05-15T11:50:43Z

link

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 The '''law of Mallard''' was introduced by Georges Friedel [''Leçons de Cristallographie'' (1926), p. 436] to explain, on a reticular basis, [[twinning by pseudomerohedry]].
-The law of Mallard states that [[twin element]]s are always rational (''i.e.'' [[direct lattice]] elements); therefore, a [[twin element|twin plane]] is a lattice plane, and a [[twin element|twin axis]] is a lattice row. These twin elements are pseudo[[symmetry element]]s for the lattice of the individual. The twin operations produce now slightly different orientations of the lattice of the individual, which are only quasi-equivalent, and no longer equivalent, as in the case of [[twinning by merohedry]].
+The law of Mallard states that [[twin element]]s are always rational (''i.e.'' [[direct lattice]] elements); therefore, a [[twin element|twin plane]] is a lattice plane, and a [[twin element|twin axis]] is a lattice row. These twin elements are pseudo-[[symmetry element]]s for the lattice of the individual. The twin operations produce now slightly different orientations of the lattice of the individual, which are only quasi-equivalent, and no longer equivalent, as in the case of [[twinning by merohedry]].
 [[Category:Twinning]]

← Older revision		Revision as of 12:36, 16 November 2017
Line 1:		Line 1:
−	<font color="blue">Loi de Mallard</font> (''Fr''). <~~Font~~ color="black">Legge di Mallard</~~Font~~> (''It''). <~~Font~~ color="purple">マラード法則</~~Font~~> (''Ja'').	+	<font color="blue">Loi de Mallard</font> (''Fr''). <font color="red">Mallard-Gesetz</font> (''Ge''). <font color="black">Legge di Mallard</font> (''It''). <font color="purple">マラード法則</font> (''Ja''). <font color="green">Ley de Mallard</font> (''Sp'').

	The '''law of Mallard''' was introduced by Georges Friedel [''Leçons de Cristallographie'' (1926), p. 436] to explain, on a reticular basis, [[twinning by pseudomerohedry]].		The '''law of Mallard''' was introduced by Georges Friedel [''Leçons de Cristallographie'' (1926), p. 436] to explain, on a reticular basis, [[twinning by pseudomerohedry]].

@@ Line 1: / Line 1: @@
-<font color="blue">Loi de Mallard</font> (''Fr'').  <Font color="black">Legge di Mallard</Font> (''It''). <Font color="purple">マラード法則</Font> (''Ja'')
+<font color="blue">Loi de Mallard</font> (''Fr'').  <Font color="black">Legge di Mallard</Font> (''It''). <Font color="purple">マラード法則</Font> (''Ja'').
-The '''law of Mallard''' was introduced by Georges Friedel (''Leçons de Cristallographie'' 1926, page 436) to explain, on reticular basis, [[twinning by pseudomerohedry]].
+The '''law of Mallard''' was introduced by Georges Friedel [''Leçons de Cristallographie'' (1926), p. 436] to explain, on a reticular basis, [[twinning by pseudomerohedry]].
-The law of Mallard states that [[twin element]]s are always rational (i.e. [[direct lattice]] elements): therefore, a [[twin element|twin plane]] is a lattice plane, and a [[twin element|twin axis]] is a lattice row. These twin elements are pseudo[[symmetry element]]s for the lattice of the individual. The twin operations produce now slightly different orientations of the lattice of the individual, which are only quasi-equivalent, and no longer equivalent, as in the case of [[twinning by merohedry]].
+The law of Mallard states that [[twin element]]s are always rational (''i.e.'' [[direct lattice]] elements); therefore, a [[twin element|twin plane]] is a lattice plane, and a [[twin element|twin axis]] is a lattice row. These twin elements are pseudo[[symmetry element]]s for the lattice of the individual. The twin operations produce now slightly different orientations of the lattice of the individual, which are only quasi-equivalent, and no longer equivalent, as in the case of [[twinning by merohedry]].
 [[Category:Twinning]]

@@ Line 3: / Line 3: @@
 The '''law of Mallard''' was introduced by Georges Friedel (''Leçons de Cristallographie'' 1926, page 436) to explain, on reticular basis, [[twinning by pseudomerohedry]].
-The law of Mallard states that twin elements are always rational (i.e. [[direct lattice]] elements): therefore, a [[twin element|twin plane]] is a lattice plane, and a [[twin element|twin axis]] is a lattice row. These twin elements are pseudosymmetry elements for the lattice of the individual. The twin operations produce now slightly different orientations of the lattice of the individual, which are only quasi-equivalent, and no longer equivalent, as in the case of [[twinning by merohedry]].
+The law of Mallard states that [[twin element]]s are always rational (i.e. [[direct lattice]] elements): therefore, a [[twin element|twin plane]] is a lattice plane, and a [[twin element|twin axis]] is a lattice row. These twin elements are pseudo[[symmetry element]]s for the lattice of the individual. The twin operations produce now slightly different orientations of the lattice of the individual, which are only quasi-equivalent, and no longer equivalent, as in the case of [[twinning by merohedry]].
 [[Category:Twinning]]

← Older revision		Revision as of 09:50, 7 December 2008
Line 1:		Line 1:
−	<font color="blue">Loi de Mallard</font>(''Fr''). <Font color="black">Legge di Mallard </Font>(''It'')	+	<font color="blue">Loi de Mallard</font> (''Fr''). <Font color="black">Legge di Mallard</Font> (''It''). <Font color="purple">マラード法則</Font> (''Ja'')

	The '''law of Mallard''' was introduced by Georges Friedel (''Leçons de Cristallographie'' 1926, page 436) to explain, on reticular basis, [[twinning by pseudomerohedry]].		The '''law of Mallard''' was introduced by Georges Friedel (''Leçons de Cristallographie'' 1926, page 436) to explain, on reticular basis, [[twinning by pseudomerohedry]].

← Older revision		Revision as of 08:18, 15 June 2008
Line 5:		Line 5:
	The law of Mallard states that twin elements are always rational (i.e. [[direct lattice]] elements): therefore, a [[twin element\|twin plane]] is a lattice plane, and a [[twin element\|twin axis]] is a lattice row. These twin elements are pseudosymmetry elements for the lattice of the individual. The twin operations produce now slightly different orientations of the lattice of the individual, which are only quasi-equivalent, and no longer equivalent, as in the case of [[twinning by merohedry]].		The law of Mallard states that twin elements are always rational (i.e. [[direct lattice]] elements): therefore, a [[twin element\|twin plane]] is a lattice plane, and a [[twin element\|twin axis]] is a lattice row. These twin elements are pseudosymmetry elements for the lattice of the individual. The twin operations produce now slightly different orientations of the lattice of the individual, which are only quasi-equivalent, and no longer equivalent, as in the case of [[twinning by merohedry]].

−	[[Category:~~Fundamental crystallography~~]]	+	[[Category:Twinning]]

@@ Line 1: / Line 1: @@
 <font color="blue">Loi de Mallard</font>(''Fr'').  <Font color="black">Legge di Mallard </Font>(''It'')
-The '''law of Mallard''' was introduced by Georges Friedel (''Leçons de Cristallographie'' 1926, page 436) to explain, or reticular bases, [[twinning by pseudomerohedry]].
+The '''law of Mallard''' was introduced by Georges Friedel (''Leçons de Cristallographie'' 1926, page 436) to explain, for reticular bases, [[twinning by pseudomerohedry]].
-The law of Mallard states that twin elements are always rational (i.e. [[direct lattice]] elements): therefore, a [[twin element|twin plane]] is a lattice plane, and a [[twin element|twin axis]] is a lattice row. These twin elements are pseudosymmetry elements for the lattice of the individual. The twin operations produce now sligthly different orientations of the lattice of the individual, which are only quasi-equivalent, and no longer equivalent, as in the case of [[twinning by merohedry]].
+The law of Mallard states that twin elements are always rational (i.e. [[direct lattice]] elements): therefore, a [[twin element|twin plane]] is a lattice plane, and a [[twin element|twin axis]] is a lattice row. These twin elements are pseudosymmetry elements for the lattice of the individual. The twin operations produce now slightly different orientations of the lattice of the individual, which are only quasi-equivalent, and no longer equivalent, as in the case of [[twinning by merohedry]].
 [[Category:Fundamental crystallography]]