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![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](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MzgvMDEvMDEvZ292ZXJubWVudC1kaXNjb3ZlcnMtbWV0aG9kLXRvLXByZXNlcnZlLW1vdmllLWZpbG0taW5kZWZpbml0ZWx5LXdhc2hpbmd0b24tMTAyNC5qcGc%3D/40/31/webp "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")
Government discovers method to preserve movie film indefinitely. Washi...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Production. War housing trailers. A complete side assembly of a war ho...
Public domain photograph of California in 1930s, free to use, no copyright restrictions image - Picryl description
To Wm. T. Barry. Esq. No. II. Sir-- Few men in the state of your age a...
Campaign.; Imprint 2. Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 21, Folder 39.