MDS 681.4
Wording: Applied science & technology Manufacture for specific uses Precision instruments and other devices Optical instruments
Dewmoji: π‘π¨βπ
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· |
680 Clocks / Firearms / Printing & Books 747 π¨ | 681 Precision instruments and other devices 3,311 β | 682 Small forge work (Blacksmithing) 351 π΄ | 683 Hardware, weapons, household appliances 2,256 π | 684 Furnishings and home workshops 4,103 πͺ | 685 Leather and fur goods, and related products 446 π | 686 Printing and related activities 5,281 π | 687 Clothing and accessories 598 π | 688 Other final products, and packaging technology 3,655 π | 689 [Formerly: Other Trades] 57 |
681.0 24 | 681.1 Instruments for measuring time, counting and calculating machines and instruments 1,119 | 681.2 Testing, measuring, sensing instruments 726 | 681.3 93 | 681.4 Optical instruments 292 π | 681.5 10 | 681.6 Printing, writing, duplicating machines and equipment 201 π | 681.7 Other scientific and technological instruments, machinery, equipment 448 | 681.8 Musical instruments 69 | 681.9 1 |
681.40 9 | 681.41 Specific instruments 136 | 681.42 49 | 681.43 | 681.44 | 681.45 | 681.46 | 681.47 | 681.48 | 681.49 |
Selected Works under MDS 681.4 (292)
- How to make a telescope by Jean Texereau
- Build Your Own Telescope by Richard Berry
- Insisting on the Impossible: The Life of Edwin Land by Victor K. McElheny
- Amateur Telescope Making, Volume 2 by Albert G. Ingalls
- Amateur Telescope Making by Albert G. Ingalls
- Making Your Own Telescope by Allyn J. Thompson
- Amateur Telescope Making, Volume 1 by Albert G. Ingalls
- The Dobsonian Telescope: A Practical Manual for Building Large Aperture Telescopes by David Kriege
- The History of the Telescope by Henry C. King
- Amateur Telescope Making by Stephen Tonkin
- Amateur Telescope Making, Volume 3 by Albert G. Ingalls
- The Telescope by Louis Bell
- Optical System Design, Second Edition by Robert Fischer
- Microscopes and Telescopes (New True Books) by Fred Wilkin
- An Acre of Glass: A History and Forecast of the Telescope by J. B. Zirker
- English Guns and Rifles (Firearms Classics Library) by J. N. George
- Opto-Mechanical Systems Design, Third Edition (Optical Science and Engineering) by Paul R. Jr. Yoder
- Mirrors, Prisms and Lenses A Text-Book of Geometrical Optics by James P.C. Southall
- Basic Optics and Optical Instruments: Revised Edition by Naval Education
- Best of Amateur Telescope Making Journal by William J. Cook
Related Tags
"Far Friends"
MDS classes with significant recommendations overlap, excluding ones under the same top-level class.
Wording
| 1922 Edition |
| Modern Language |
| Emoji |























































