Vaizdas:Optic Projection fig 42.jpg
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Didesnės raiškos iliustracija (2 058 × 1 929 taškų, rinkmenos dydis: 378 KiB, MIME tipas: image/jpeg)
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Aprašymas
| Aprašymas | caption: "Fig. 42. The Small Arc Lamp of the Spencer Lens Co. With this small arc lamp the two carbons may be moved separately or together, as the carbon movement is like that of the larger lamps, i.e., one shaft within the other, and the corresponding milled heads are placed close together, so that either can be turned separately or both together. It is arranged for giving parallel or converging light. When used with the magic lantern the special condenser and its tube are removed." |
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| Šaltinis |
Optic Projection: Principles, Installation and Use of the Magic Lantern, Projection Microscope, Reflecting Lantern, Moving Picture Machine, by Simon Henry Gage and Henry Phelps Gage, Ph.D. Ithaca, New York, Comstock Publishing Company. 1914. page 81. |
| Autorius | Spencer Lens Co. |
| Leidimas (Šios rinkmenos panaudojimas kitur) |
PD-US |
Licencija
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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Rinkmenos istorija
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| Data/Laikas | Miniatiūra | Matmenys | Naudotojas | Paaiškinimas | |
|---|---|---|---|---|---|
| dabartinis | 09:41, 9 vasario 2008 | | 2 058 × 1 929 (378 KiB) | DavepapeBot | ==Summary== {{Information |Description=caption: "Fig. 42. The Small Arc Lamp of the Spencer Lens Co. With this small arc lamp the two carbons may be moved separately or together, as the carbon movement is like that of the larger lamps, i.e., one shaft wi |
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