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Melvil Decimal System: 621.435

Wording: Technology > Engineering > Mechanical Engineering and Machinery > Heat engineering > Internal combustion engines > Not set

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

0
Information
179,064
โ„น๏ธ
1
Philosophy and Psychology
167,145
๐Ÿ’ญ
2
Religion
436,901
๐Ÿ™๐Ÿฝ
3
Social Sciences
912,661
๐Ÿ‘ซ
4
Language
121,346
๐Ÿ’ฌ
5
Mathematics and Science
288,882
๐Ÿ”ฌ
6
Technology
666,318
๐Ÿ’ก
7
Arts and Recreation
658,667
๐ŸŽจ
8
Literature
877,170
๐Ÿ“š
9
Biography and History
559,529
๐Ÿ—ฟ
60
General Technology
6,468
๐Ÿ’ก
61
Medicine
220,255
๐Ÿ’‰
62
Engineering
108,000
๐Ÿ”ฉ
63
Agriculture & Animal Husbandry
63,113
๐ŸŒฑ
64
Home Economics
124,120
๐Ÿ 
65
Business
103,596
๐Ÿ‘”
66
Chemical Technology
12,610
๐Ÿš€
67
Manufacturing
5,230
๐Ÿ“ฆ
68
Handicraft and Occupations
14,444
๐Ÿ”จ
69
Building
8,482
๐Ÿ‘ท
620
Engineering
13,479
๐Ÿ”ฉ
621
Mechanical Engineering and Machinery
33,222
๐Ÿญ
622
Mining Engineering and Mines and Mineral Resources
2,467
๐Ÿ•ณ
623
Military Engineering and Marine Engineering
10,993
โš“
624
Civil Engineering
5,853
๐ŸŒ‰
625
Road and Railroad
3,488
๐Ÿ›ค
626
--
29
๐Ÿคท
627
Hydraulic Engineering
1,174
๐ŸŒŠ
628
Sanitary; Municipal
5,029
๐Ÿšฝ
629
Other Branches
32,266
๐ŸŒฟ
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
621.40
574
621.41
2
621.42
8
621.43
Internal combustion engines
415
621.44
37
621.45
Windmills
115
621.46
168
621.47
Solar engines
254
621.48
692
621.49
621.430
14
621.431
1
621.432
1
621.433
36
621.434
42
621.435
55
621.436
47
621.437
8
621.438
2
621.439
621.4350
2
621.4351621.4352
4
621.4353621.4354621.4355621.4356
44
621.4357621.4358621.4359

Works under MDS 621.435

1–50 of 53 ( next )titles | covers | shelf
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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

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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