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Melvil Decimal System: 621.183

Wording: Technology > Engineering > Mechanical Engineering and Machinery > Steam engineering > Not set > Not set

Dewmoji: πŸ’‘ > πŸ”© > 🏭 > ? > ? > ?

0
Information
184,385
ℹ️
1
Philosophy and Psychology
173,011
πŸ’­
2
Religion
444,891
πŸ™πŸ½
3
Social Sciences
956,176
πŸ‘«
4
Language
124,030
πŸ’¬
5
Mathematics and Science
297,976
πŸ”¬
6
Technology
694,518
πŸ’‘
7
Arts and Recreation
670,607
🎨
8
Literature
893,417
πŸ“š
9
Biography and History
568,807
πŸ—Ώ
60
General Technology
6,677
πŸ’‘
61
Medicine
230,484
πŸ’‰
62
Engineering
113,881
πŸ”©
63
Agriculture & Animal Husbandry
64,778
🌱
64
Home Economics
125,575
🏠
65
Business
110,302
πŸ‘”
66
Chemical Technology
13,705
πŸš€
67
Manufacturing
5,492
πŸ“¦
68
Handicraft and Occupations
14,844
πŸ”¨
69
Building
8,780
πŸ‘·
620
Engineering
15,175
πŸ”©
621
Mechanical Engineering and Machinery
35,350
🏭
622
Mining Engineering and Mines and Mineral Resources
2,565
πŸ•³
623
Military Engineering and Marine Engineering
11,192
βš“
624
Civil Engineering
6,241
πŸŒ‰
625
Road and Railroad
3,577
πŸ›€
626
--
29
🀷
627
Hydraulic Engineering
1,242
🌊
628
Sanitary; Municipal
5,415
🚽
629
Other Branches
33,095
🌿
621.0
711
621.1
Steam engineering
417
621.2
Hydraulic machinery
191
621.3
Electric engineering
24,788
621.4
Heat engineering
2,773
621.5
Pneumatic machinery and Compressed air and Refrigeration and refrigerating machinery
325
621.6
Fans (Machinery) and Pumping machinery
110
621.7
Production engineering and Factories and Machine-shop practice
89
621.8
Other mechanical engineering topics
1,953
621.9
Machine-tools
962
621.10
43
621.11
1
621.12
8
621.13
74
621.14
4
621.15
2
621.16
25
621.17621.18
56
621.19
45
621.180
1
621.181
1
621.182
3
621.183
33
621.184
8
621.185
1
621.186621.187621.188621.189
621.1830
4
621.1831621.1832621.1833621.1834621.1835621.1836621.1837621.1838621.1839

Works under MDS 621.183

1–26 of 26 titles | covers | shelf

Wording

1922 Edition
Modern language
Emoji

"Far Friends"

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

None

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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