MDS 621.3850285

Wording: Technology Engineering Applied physics Electrical, magnetic, optical, communications, computer engineering; electronics, lighting Electronics, communications engineering Telephony Not set Not set Not set Not set

Dewmoji: 💡🔩🏭???????

0
Computer science, information & general works
252,013
ℹ️
1
Philosophy and Psychology
270,129
🧠
2
Religion
681,242
🙏
3
Social sciences
1,328,382
👫
4
Language
209,883
💬
5
Natural sciences & mathematics
431,918
🔬
6
Technology
940,635
💡
7
Arts & recreation
1,031,850
🎨
8
Literature & rhetoric
1,436,736
📚
9
History & geography
837,760
🗺️
60
Technology
9,943
💡
61
Medicine & health
306,082
💉
62
Engineering
157,979
🔩
63
Agriculture
88,093
🌱
64
Home economics & family management
172,237
🏠
65
Management & public relations
145,064
👔
66
Chemical engineering
19,470
🚀
67
Manufacturing
8,724
📦
68
Manufacture for specific uses
20,805
🔨
69
Construction of buildings
12,238
👷
620
Engineering and allied operations
21,480
🔩
621
Applied physics
47,082
🏭
622
Mining and related operations
3,895
🕳
623
Military and nautical engineering
15,890
⚓
624
Civil engineering
8,105
🌉
625
Engineering of railroads and roads
6,655
🛤
626
[Formerly: Canal Engineering]
83
627
Hydraulic engineering
1,873
🌊
628
Environmental engineering and sanitary engineering
7,319
🚽
629
Other branches of engineering
45,597
🌿
621.0
1,207
621.1
Steam engineering
687
621.2
Hydraulic machinery
291
621.3
Electrical, magnetic, optical, communications, computer engineering; electronics, lighting
33,501
621.4
Heat engineering
4,105
621.5
Pneumatic machinery and Compressed air and Refrigeration and refrigerating machinery
454
621.6
Fans (Machinery) and Pumping machinery
161
621.7
Production engineering and Factories and Machine-shop practice
182
621.8
Machine Engineering
2,644
621.9
Machine-tools
1,518
621.30
Electric power plant
436
621.31
Generation, modification, storage, transmission of electric power
5,025
621.32
Lighting
393
621.33
Electric Railways
50
621.34
Magnets and Electromagnets
121
621.35
Batteries and Superconductivity
40
621.36
Optical engineering
2,905
621.37
Electrical Measurement Instruments
156
621.38
Electronics, communications engineering
20,091
621.39
Computer engineering
2,322
621.380
Light current engineering
149
621.381
Electronics
8,998
621.382
Communications
4,017
621.383
Telegrapy
40
621.384
Radar, Radio
3,694
621.385
Telephony
334
621.386
Telephone terminal equipment
51
621.387
Telephone transmission equipment
28
621.388
Television
756
621.389
Audio, sound engineering
1,031
621.3850
66
621.3851
1
621.3852
621.3853
1
621.3854
1
621.3855
621.3856
621.3857
10
621.3858
621.3859
621.38500
621.38501
1
621.38502
13
621.38503
621.38504
621.38505
1
621.38506
621.38507
621.38508
621.38509
49
621.385020
621.385021
621.385022
621.385023
621.385024
621.385025
621.385026
621.385027
621.385028
12
621.385029
1
621.3850280
621.3850281
621.3850282
621.3850283
621.3850284
621.3850285
12
621.3850286
621.3850287
621.3850288
621.3850289
621.38502850
621.38502851
621.38502852
621.38502853
621.38502854
1
621.38502855
1
621.38502856
621.38502857
621.38502858
621.38502859

Selected Works under MDS 621.3850285 (12)

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"Far Friends"

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

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Wording

1922 Edition
Do NOT copy from the copyrighted sources. 1922 edition here, in absurd phonetic English. Use standard spelling.
History
Modern Language
Modern wording should be based on the Free Decimal System, on the 1922 edition of Dewey, or on the items cataloged under that MDS number. Do not take your wording from an in-copyright source.
History
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History