MDS 621.47
Wording: Applied science & technology Engineering Applied physics Engines, Power Plants, Tools Solar Energy
Dewmoji: π‘π©π⚙️☀️
0 Computer science, information & general works 252,013 βΉοΈ | 1 Philosophy & psychology 270,129 🧠 | 2 Religion 681,242 π | 3 Society, government, & culture 1,328,382 π« | 4 Language 209,883 π¬ | 5 Natural sciences & mathematics 431,918 π¬ | 6 Applied science & technology 940,635 π‘ | 7 Arts & recreation 1,031,850 π¨ | 8 Literature & rhetoric 1,436,736 π | 9 History & geography 837,760 πΊοΈ |
60 Technology 9,943 π‘ | 61 Medicine & health 306,082 π | 62 Engineering 157,979 π© | 63 Agriculture 88,093 π± | 64 Home economics & family management 172,237 π | 65 Management & public relations 145,064 π | 66 Chemical engineering 19,470 π | 67 Manufacturing 8,724 π¦ | 68 Manufacture for specific uses 20,805 π¨ | 69 Buildings 12,238 π· |
620 Mechanical & Civil Engineering 21,480 π© | 621 Applied physics 47,082 π | 622 Mining and related operations 3,895 π³ | 623 Military Vehicles: Land, Air, & Sea 15,890 β | 624 Bridges & Tunnels 8,105 π | 625 Railroads, Subways, Roads 6,655 π€ | 626 [Formerly: Canal Engineering] 83 | 627 Dams, Lighthouses, Drilling Platforms 1,873 π | 628 Water Treatment & Waste Disposal 7,319 π½ | 629 Transportation Vehicles 45,597 πΏ |
621.0 1,207 | 621.1 Steam engineering 687 | 621.2 Hydraulic machinery 291 | 621.3 Electronics & Computers 33,501 ⚡ | 621.4 Engines, Power Plants, Tools 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 |
621.40 962 | 621.41 Calorie engines 2 | 621.42 Stirling Engines 14 | 621.43 Internal combustion engines 722 ⛽ | 621.44 Geothermal Energy 57 ♨️ | 621.45 Windmills 126 🌬️ | 621.46 Electric Motors 233 ⚡ | 621.47 Solar Energy 374 ☀️ | 621.48 Nuclear Engineering 1,148 ☢️ | 621.49 2 |
621.470 13 | 621.471 14 | 621.472 8 | 621.473 1 | 621.474 | 621.475 3 | 621.476 | 621.477 | 621.478 | 621.479 |
Selected Works under MDS 621.47 (374)
- My Light by Molly Bang
- A Golden Thread: 2500 Years of Solar Architecture and Technology by Ken Butti
- Energy from the Sun by Melvin Berger
- Solar Energy Projects for the Evil Genius by Gavin D. J. Harper
- Direct Use of the Sun's Energy by Farrington Daniels
- Running on Sunshine: How Does Solar Energy Work? by Carolyn Cinami Decristofano
- Harnessing Power from the Sun by Niki Walker
- Solar Power (True Books: Environment) by Christine Petersen
- Solar Engineering of Thermal Processes by John A. Duffie
- Solar Science Projects by D. S. Halacy
- Solar Energy at Work (New True Books: Science) by David Petersen
- Solar Energy (Alternative Energy Series) by Graham Rickard
- Let It Shine: The 6,000-Year Story of Solar Energy by John Perlin
- Solar Energy: Running on Sunshine (Powering Our World) by Amy S. Hansen
- Solar Power (Energy Forever?) by Ian Graham
- Coming Age of Solar Energy by Daniel Stephen Halacy
- Solar Energy by David Armentrout
- Solar Energy: The Physics and Engineering of Photovoltaic Conversion, Technologies and Systems by Olindo Isabella
- Sunspots : collected facts and solar fiction by Steve Baer
- Done in the Sun: Solar Projects for Children by Anne Hillerman
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 |























































