MDS621.811

Wording: TechnologyEngineering and allied operationsApplied physicsMachine EngineeringPrinciples of mechanismNot set

Dewmoji: πŸ’‘πŸ”©πŸ­???

0
Information
216,948
ℹ️
1
Philosophy and Psychology
229,419
πŸ’­
2
Religions
562,779
πŸ™
3
Social sciences
1,169,921
πŸ‘«
4
Language
177,109
πŸ’¬
5
Natural sciences and mathematics
380,441
πŸ”¬
6
Technology
844,132
πŸ’‘
7
The arts
857,504
🎨
8
Literature
1,201,263
πŸ“š
9
History and Geography
703,933
πŸ—ΊοΈ
60
General Technology
8,586
πŸ’‘
61
Medicine and health
277,111
πŸ’‰
62
Engineering and allied operations
140,868
πŸ”©
63
Agriculture & related technologies
78,723
🌱
64
Home and family management
152,587
🏠
65
Management and auxiliary services
131,640
πŸ‘”
66
Chemical Technology
17,794
πŸš€
67
Manufacturing
7,692
πŸ“¦
68
Manufacture of products for specific uses
18,201
πŸ”¨
69
Building
10,930
πŸ‘·
620
Engineering
19,566
πŸ”©
621
Applied physics
42,616
🏭
622
Mining Engineering and Mines and Mineral Resources
3,424
πŸ•³
623
Military Engineering and Marine Engineering
13,937
βš“
624
Civil Engineering
7,390
πŸŒ‰
625
Road and Railroad
5,150
πŸ›€
626
unassigned since 1911 7th Edition (was Canal Engineering)
72
🀷
627
Hydraulic Engineering
1,678
🌊
628
Sanitary; Municipal
6,571
🚽
629
Other Branches
40,464
🌿
621.0
1,143
621.1
Steam engineering
567
621.2
Hydraulic machinery
238
621.3
Electrical, magnetic, optical, communications, computer engineering; electronics, lighting
30,327
621.4
Heat engineering
3,663
621.5
Pneumatic machinery and Compressed air and Refrigeration and refrigerating machinery
415
621.6
Fans (Machinery) and Pumping machinery
142
621.7
Production engineering and Factories and Machine-shop practice
155
621.8
Machine Engineering
2,398
621.9
Machine-tools
1,300
621.80
57
621.81
Principles of mechanism
287
621.82
Journals, shafting, etc.
96
621.83
Gears, ratchets, cams
47
621.84
Valve motions and gears
19
621.85
Machinery and mill gearing
14
621.86
Hoisting and conveying machinery
200
621.87
Cranes and elevators
25
621.88
Fastenings
37
621.89
Lubricants. Friction.
160
621.810
2
621.811
121
621.812
1
621.813
621.814
621.815
102
621.816
25
621.817
621.818
621.819
621.8110
3
621.8111
621.8112
621.8113
621.8114
621.8115
621.8116
621.8117
621.8118
621.8119

Selected Works under MDS 621.811 (121)

Related Tags

"Far Friends"

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

None

Wording

1922 Edition
Do NOT copy from the copyrighted sources. 1922 edition here, in absurd phonetic English. Use standard spelling.
Modern Language
Modern wording should be based on the Free Decimal System or on the 1922 edition of Dewey. Language and concepts may be modernized. Do not use an in-copyright source.
Emoji
A single emoji for this DDC Class. The full emoji will be composed of the emojis from the top level to this one.