The public domain (PD) consists of all the creative work to which no exclusive intellectual property rights apply. Those rights may have expired, been forfeited, expressly waived, or may be inapplicable. Because no one holds the exclusive rights, anyone can legally use or reference those works without permission.
As examples, the works of William Shakespeare, Ludwig van Beethoven, Miguel de Cervantes, Zoroaster, Lao Zi, Confucius, Aristotle, L. Frank Baum, Leonardo da Vinci and Georges Méliès are in the public domain either by virtue of their having been created before copyright existed, or by their copyright term having expired. Some works are not covered by a country's copyright laws, and are therefore in the public domain; for example, in the United States, items excluded from copyright include the formulae of Newtonian physics and cooking recipes. Other works are actively dedicated by their authors to the public domain (see waiver); examples include reference implementations of cryptographic algorithms, and the image-processing software ImageJ (created by the National Institutes of Health). The term public domain is not normally applied to situations where the creator of a work retains residual rights, in which case use of the work is referred to as "under license" or "with permission".
As rights vary by country and jurisdiction, a work may be subject to rights in one country and be in the public domain in another. Some rights depend on registrations on a country-by-country basis, and the absence of registration in a particular country, if required, gives rise to public-domain status for a work in that country. The term public domain may also be interchangeably used with other imprecise or undefined terms such as the public sphere or commons, including concepts such as the "commons of the mind", the "intellectual commons", and the "information commons".
Media in category "Public domain files"
The following 200 files are in this category, out of 1,484 total.
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1st cardboard podium.jpg 337 × 387; 41 KB
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2 Parametric DB-9 Connectors Connecting Through Gender Changer.jpg 2,560 × 1,440; 1.27 MB
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2011-08-13 Guerilla Gardening Nursery on Balcony in Dhaka, Bangladesh.jpg 810 × 1,200; 84 KB
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2011-08-13 Pair of Guerilla gardened papayas in Dhaka, Bangladesh.jpg 1,000 × 750; 121 KB
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2D instructionsPDF.pdf 1,125 × 1,500; 479 KB
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3D Printed Joint IMG 0577-1-.JPG 300 × 400; 48 KB
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6ft Stretch Hexayurt.pdf 1,500 × 1,125; 228 KB
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6x8 H15 Hexayurt instructional.pdf 1,125 × 1,500; 455 KB
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8 foot hexayurt worksheet.xls ; 20 KB
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9th Av 30 St bikelane jeh.jpg 531 × 480; 79 KB
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Add.jpg 2,448 × 3,264; 1.63 MB
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ApprProfPic Dedmore.JPG 2,160 × 1,440; 435 KB
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ARM 3-2 Manipulator.jpg 1,151 × 872; 285 KB
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Arrow.pdf 1,275 × 1,650; 204 KB
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Assembled extruder.jpg 800 × 600; 104 KB
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Athena 24V Round Heated Bed Wiring Diagram.PDF 1,275 × 1,650; 22 KB
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Athena II Printer.jpg 2,677 × 3,570; 926 KB
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Athena24V Heated Bed Wiringdiagram.png 513 × 421; 17 KB
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AudenLibraryOfCongress.jpg 144 × 180; 33 KB
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Auntof6 animejpg.jpeg 595 × 842; 65 KB
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Axle mount.jpeg 3,264 × 2,448; 1.32 MB
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Back final.jpg 453 × 453; 64 KB
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Background Paper 2014 Brice Messina Patrick Radatz.pdf 1,275 × 1,650, 11 pages; 3.8 MB
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Balloon step1.JPG 1,536 × 2,048; 1.47 MB
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Balloonfinal.JPG 4,000 × 3,000; 2.16 MB
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Barcelonette.jpg 512 × 683; 171 KB
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Baron.jpg 640 × 480; 69 KB
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Ben 2 and 3 construction tools.JPG 1,023 × 1,274; 182 KB
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Ben 2 Nepal 2015e.jpg 366 × 486; 51 KB
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Ben 3 Firewood Stove - Seifert 2015.jpg 511 × 600; 57 KB
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Ben2 Ben3 welded tripod 11-04-2016 001.jpg 636 × 876; 80 KB
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Benjamin Franklin by Jean-Baptiste Greuze.jpg 288 × 355; 92 KB
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Bicycle Brake Caliper Print.jpg 1,600 × 900; 139 KB
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