MDS525
Wording: Natural sciences and mathematicsAstronomyEarth
Dewmoji: π¬ππ
0 Information 209,734 βΉοΈ | 1 Philosophy and Psychology 219,479 π | 2 Religions 550,114 π | 3 Social sciences 1,140,292 π« | 4 Language 167,040 π¬ | 5 Natural sciences and mathematics 365,981 π¬ | 6 Technology and Application of Knowledge 817,412 π‘ | 7 The arts 827,389 π¨ | 8 Literature 1,168,255 π | 9 History and Geography 684,032 πΊοΈ |
50 General Science 29,213 π¬ | 51 Mathematics 71,697 β | 52 Astronomy 20,604 π | 53 Physics 37,622 π | 54 Chemistry 24,951 βοΈ | 55 Earth sciences & geology 30,889 π | 56 Fossils & prehistoric life 8,640 π | 57 Life Sciences, Biology 48,399 𧬠| 58 Plants 21,312 πΏ | 59 Zoology 72,654 πΌ |
520 Astronomy 4,986 π | 521 Celestial Mechanics 427 β | 522 Telescopes and handbooks 1,295 π | 523 Astronomical objects and astrophysics 10,135 π | 524 Maps and Observations [No longer in use] 121 πΊοΈ | 525 Earth 509 π | 526 Mathematical geography; cartography, map making 1,680 π | 527 Celestial Navigation 122 πΊ | 528 Ephemerides; Nautic almanacs 140 π | 529 Chronology 1,189 β³ |
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
"Far Friends"
MDS classes with significant recommendations overlap, excluding ones under the same top-level class.
None
Wording
1922 Edition |
Modern Language |
Emoji |