File:Government discovers method to preserve movie film indefinitely. Washington, D.C., July 8. People living in the year 2000 will be able to see and hear today's history in the making through LCCN2016873781.jpg
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English: Title: Government discovers method to preserve movie film indefinitely. Washington, D.C., July 8. People living in the year 2000 will be able to see and hear today's history in the making through experiments on preserving movie film now being conducted by the National Bureau of Standards. The experts at the bureau recently completed "accelerated aging tests in which films in six months went through the effects of 50 years' storage in a cool dark room. These tests showed that cellulose, or explosive film, would last from 50 to 100 years. The new Safety or Acetate film "may be preserved for longer periods." Unofficially, the experts put the figure at several hundred years. The following set of pictures were made at the Bureau of Standards and the National Archives Building. (1) Accelerated aging, The stability of the films is tested similarly to paper. They are heated in this oven at 100 [degrees] C and tested for loss of flexibility and for evidences of chemical decomposition. Arnold Soorne, of the Bureau Staff, is picture making the test
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Library of Congress
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| Author | Harris & Ewing, photographer | ||
| Permission (Reusing this file) |
No known restrictions on publication. For more information, see Harris & Ewing Photographs - Rights and Restrictions Information https://www.loc.gov/rr/print/res/140_harr.html
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| Collection | Harris & Ewing Collection | ||
| Notes |
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| Part of | harris & ewing collection · prints and photographs division | ||
| Subject | united states · district of columbia · washington (d.c.) · glass negatives | ||
| Location | district of columbia | ||
| Place | District of Columbia--Washington (D.C.) | ||
| Genre | Glass negatives |
Licensing
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This work is from the Harris & Ewing collection at the Library of Congress. According to the library, there are no known copyright restrictions on the use of this work. |  |
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This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:51, 8 June 2018 | | 10,115 × 8,061 (8.43 MB) | Fæ (talk | contribs) | LOC upscale 1,024 × 816 → 10,115 × 8,061 |
| 10:57, 18 March 2018 |  | 1,024 × 816 (115 KB) | Fæ (talk | contribs) | Library of Congress Harris & Ewing Collection 1938 LCCN 2016873781 jpg # 20,875 / 41,540 |
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