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Melvil Decimal System: 621.1309

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

Dewmoji: 💡 > 🔩 > 🏭 > ? > ? > ? > ?

0
Information
179,064
ℹ️
1
Philosophy and Psychology
167,145
💭
2
Religion
436,901
🙏🏽
3
Social Sciences
912,661
👫
4
Language
121,346
💬
5
Mathematics and Science
288,882
🔬
6
Technology
666,318
💡
7
Arts and Recreation
658,667
🎨
8
Literature
877,170
📚
9
Biography and History
559,529
🗿
60
General Technology
6,468
💡
61
Medicine
220,255
💉
62
Engineering
108,000
🔩
63
Agriculture & Animal Husbandry
63,113
🌱
64
Home Economics
124,120
🏠
65
Business
103,596
👔
66
Chemical Technology
12,610
🚀
67
Manufacturing
5,230
📦
68
Handicraft and Occupations
14,444
🔨
69
Building
8,482
👷
620
Engineering
13,479
🔩
621
Mechanical Engineering and Machinery
33,222
🏭
622
Mining Engineering and Mines and Mineral Resources
2,467
🕳
623
Military Engineering and Marine Engineering
10,993
⚓
624
Civil Engineering
5,853
🌉
625
Road and Railroad
3,488
🛤
626
--
29
🤷
627
Hydraulic Engineering
1,174
🌊
628
Sanitary; Municipal
5,029
🚽
629
Other Branches
32,266
🌿
621.0
595
621.1
Steam engineering
395
621.2
Hydraulic machinery
179
621.3
Electric engineering
23,305
621.4
Heat engineering
2,518
621.5
Pneumatic machinery and Compressed air and Refrigeration and refrigerating machinery
308
621.6
Fans (Machinery) and Pumping machinery
104
621.7
Production engineering and Factories and Machine-shop practice
86
621.8
Other mechanical engineering topics
1,859
621.9
Machine-tools
897
621.10
43
621.11
1
621.12
8
621.13
74
621.14
4
621.15
2
621.16
23
621.17621.18
51
621.19
40
621.130
26
621.131
1
621.132
22
621.133
1
621.134
4
621.135621.136621.137621.138621.139
621.1300621.1301621.1302621.1303621.1304621.1305621.1306621.1307621.1308621.1309
26
621.13090621.13091621.13092
2
621.13093621.13094
9
621.13095621.13096
3
621.13097
8
621.13098621.13099
1

Works under MDS 621.1309

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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