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Melvil Decimal System: 539.7211

Wording: Mathematics and Science > Physics > Nuclear physics; Matter > Radioactivity > Not set > Not set > Not set

Dewmoji: 🔬 > 🍎 > > ? > ? > ? > ?

0
Information
196,271
ℹ️
1
Philosophy and Psychology
182,817
💭
2
Religion
463,618
🙏🏽
3
Social Sciences
1,017,722
👫
4
Language
130,463
💬
5
Mathematics and Science
322,970
🔬
6
Technology
751,858
💡
7
Arts and Recreation
695,836
🎨
8
Literature
929,792
📚
9
Biography and History
592,368
🗿
50
General Science
24,934
🔬
51
Mathematics
61,944
52
Astronomy
17,388
🌌
53
Physics
34,172
🍎
54
Chemistry
22,053
55
Earth sciences & geology
28,173
🌎
56
Fossils & prehistoric life
6,394
💀
57
Life Sciences
45,977
🐠
58
Botany
17,698
🌿
59
Zoology
64,237
🐼
530
Physics
16,660
🍎
531
Mechanics
2,696
💨
532
Fluid mechanics
1,298
💦
533
Gas dynamics; Aerodynamics; Pneumatics
274
☁️
534
Sound; Acoustics
641
🔔
535
Optics
3,012
🌈
536
Heat; Thermodynamics
1,114
🔥
537
Electricity
2,533
538
Magnetism
1,048
Φ
539
Nuclear physics; Matter
4,896
539.0
40
539.1
Theory; Molecular structure
134
539.2
Properties of solids
144
539.3
Elasticity; Torsion
4
539.4
Strength of materials
1
539.5
Permanent displacement of molecules
2
539.6
Intermolecular forces
140
539.7
Radioactivity
3,883
539.8
2
539.9
539.70
210
539.71539.72
986
539.73
175
539.74
60
539.75
312
539.76
109
539.77
60
539.78539.79
Tables; Problems; Questions
539.720
17
539.721
426
539.722
61
539.723
40
539.724539.725
122
539.726539.727539.728539.729
539.7210
7
539.7211
56
539.7212
10
539.7213
50
539.7214
9
539.7215
35
539.7216
94
539.7217
26
539.7218539.7219
539.72110539.72111539.72112
37
539.72113539.72114
6
539.72115539.72116539.72117539.72118539.72119

Works under MDS 539.7211

1–50 of 51 ( 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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