MDS525

Wording: Natural sciences and mathematicsAstronomyEarth

Dewmoji: πŸ”¬πŸ”­πŸŒ

0
Information
209,734
ℹ️
1
Philosophy and Psychology
219,479
πŸ’­
2
Religions
550,114
πŸ™
3
Social sciences
1,140,292
πŸ‘«
4
Language
167,040
πŸ’¬
5
Natural sciences and mathematics
365,981
πŸ”¬
6
Technology and Application of Knowledge
817,412
πŸ’‘
7
The arts
827,389
🎨
8
Literature
1,168,255
πŸ“š
9
History and Geography
684,032
πŸ—ΊοΈ
50
General Science
29,213
πŸ”¬
51
Mathematics
71,697
βž—
52
Astronomy
20,604
πŸ”­
53
Physics
37,622
🍎
54
Chemistry
24,951
βš—οΈ
55
Earth sciences & geology
30,889
🌎
56
Fossils & prehistoric life
8,640
πŸ’€
57
Life Sciences, Biology
48,399
🧬
58
Plants
21,312
🌿
59
Zoology
72,654
🐼
520
Astronomy
4,986
πŸ”­
521
Celestial Mechanics
427
βš™
522
Telescopes and handbooks
1,295
πŸŒƒ
523
Astronomical objects and astrophysics
10,135
🌌
524
Maps and Observations [No longer in use]
121
πŸ—ΊοΈ
525
Earth
509
🌍
526
Mathematical geography; cartography, map making
1,680
🌐
527
Celestial Navigation
122
πŸ—Ί
528
Ephemerides; Nautic almanacs
140
πŸ“’
529
Chronology
1,189
⏳
525.0
20
525.1
Constants
24
525.2
Heat; Light
3
525.3
Orbits and motions
82
525.4
Geographic coordinates
525.5
Seasons
53
525.6
Tides
9
525.7
Twilight
525.8
525.9

Selected Works under MDS 525 (509)

Related Tags

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"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.