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Melvil Decimal System: 620.106

Wording: Technology > Engineering > Engineering > Materials Science > Not set > Not set

Dewmoji: ๐Ÿ’ก > ๐Ÿ”ฉ > ๐Ÿ”ฉ > ? > ? > ?

0
Information
195,291
โ„น๏ธ
1
Philosophy and Psychology
181,886
๐Ÿ’ญ
2
Religion
459,268
๐Ÿ™๐Ÿฝ
3
Social Sciences
1,012,288
๐Ÿ‘ซ
4
Language
129,832
๐Ÿ’ฌ
5
Mathematics and Science
321,836
๐Ÿ”ฌ
6
Technology
748,891
๐Ÿ’ก
7
Arts and Recreation
692,253
๐ŸŽจ
8
Literature
923,945
๐Ÿ“š
9
Biography and History
588,112
๐Ÿ—ฟ
60
General Technology
6,938
๐Ÿ’ก
61
Medicine
250,925
๐Ÿ’‰
62
Engineering
127,505
๐Ÿ”ฉ
63
Agriculture & Animal Husbandry
67,830
๐ŸŒฑ
64
Home Economics
129,551
๐Ÿ 
65
Business
119,608
๐Ÿ‘”
66
Chemical Technology
15,558
๐Ÿš€
67
Manufacturing
6,322
๐Ÿ“ฆ
68
Handicraft and Occupations
15,431
๐Ÿ”จ
69
Building
9,223
๐Ÿ‘ท
620
Engineering
18,920
๐Ÿ”ฉ
621
Mechanical Engineering and Machinery
40,346
๐Ÿญ
622
Mining Engineering and Mines and Mineral Resources
2,779
๐Ÿ•ณ
623
Military Engineering and Marine Engineering
11,846
โš“
624
Civil Engineering
7,059
๐ŸŒ‰
625
Road and Railroad
3,741
๐Ÿ›ค
626
--
34
๐Ÿคท
627
Hydraulic Engineering
1,366
๐ŸŒŠ
628
Sanitary; Municipal
6,154
๐Ÿšฝ
629
Other Branches
35,260
๐ŸŒฟ
620.0
4,000
620.1
Materials Science
9,086
620.2
Acoustics and noise
284
620.3
Vibrations
160
620.4
410
620.5
Nanotechnology
1,088
620.6
7
620.7
--
87
620.8
Human Factors
671
๐Ÿ‘จ
620.9
52
620.10
709
620.11
3,347
620.12
70
620.13
185
620.14
248
620.15
1
620.16
304
620.17
68
620.18
95
620.19
526
620.100
47
620.101
9
620.102
5
620.103
27
620.104
51
620.105
65
620.106
489
620.107
8
620.108620.109
4
620.1060
12
620.1061620.1062620.1063620.1064
290
620.1065620.1066620.1067620.1068620.1069

Works under MDS 620.106

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Wording

1922 Edition
Modern language
Emoji

"Far Friends"

MDS classes with significant recommendations overlap, excluding ones under the same top-level class.

None

Related tags

What is MDS?

Melvil stands for "Melvil Decimal System," named after Melvil Dewey, the famous librarian. Melvil Dewey invented his Dewey Decimal System in 1876, and early versions of his system are in the public domain.

More recent editions of his system are in copyright, and the name "Dewey," "Dewey Decimal," "Dewey Decimal Classification" and "DDC" are registered trademarked by OCLC, who publish periodic revisions.

LibraryThing's MDS system is based on the classification work of libraries around the world, whose assignments are not copyrightable. MDS "scheduldes" (the words that describe the numbers) are user-added, and based on public domain editions of the system.

The Melvil Decimal System is NOT the Dewey Decimal System of today. Wordings, which are entered by members, can only come from public domain sources. The base system is the Free Decimal System, a public domain classification created by John Mark Ockerbloom. Where useful or necessary, wording comes from the 1922 edition of the Dewey Decimal System. Language and concepts may be changed to fit modern tastes, or to better describe books cataloged. Wordings may not come from in-copyright sources.

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