MDS525
Wording: Natural sciences and mathematicsAstronomyEarth
Dewmoji: 🔬🔭🌍
0 Information 209,734 ℹ️ | 1 Philosophy and Psychology 219,479 💭 | 2 Religions 550,114 🙏 | 3 Social sciences 1,140,292 👫 | 4 Language 167,040 💬 | 5 Natural sciences and mathematics 365,981 🔬 | 6 Technology and Application of Knowledge 817,412 💡 | 7 The arts 827,389 🎨 | 8 Literature 1,168,255 📚 | 9 History and Geography 684,032 🗺️ |
50 General Science 29,213 🔬 | 51 Mathematics 71,697 ➗ | 52 Astronomy 20,604 🔭 | 53 Physics 37,622 🍎 | 54 Chemistry 24,951 ⚗️ | 55 Earth sciences & geology 30,889 🌎 | 56 Fossils & prehistoric life 8,640 💀 | 57 Life Sciences, Biology 48,399 🧬 | 58 Plants 21,312 🌿 | 59 Zoology 72,654 🐼 |
520 Astronomy 4,986 🔭 | 521 Celestial Mechanics 427 ⚙ | 522 Telescopes and handbooks 1,295 🌃 | 523 Astronomical objects and astrophysics 10,135 🌌 | 524 Maps and Observations [No longer in use] 121 🗺️ | 525 Earth 509 🌍 | 526 Mathematical geography; cartography, map making 1,680 🌐 | 527 Celestial Navigation 122 🗺 | 528 Ephemerides; Nautic almanacs 140 📒 | 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
"Far Friends"
MDS classes with significant recommendations overlap, excluding ones under the same top-level class.
None
Wording
| 1922 Edition |
| Modern Language |
| Emoji |