Tập tin:Popsci2.jpg
Popsci2.jpg (350×506 điểm ảnh, kích thước tập tin: 59 kB, kiểu MIME: image/jpeg)
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Miêu tả
| Miêu tả |
English: "Cars Without Wheels"
The cover shows a "ground effect machine" designed and flown by Dr. William R. Bertelsen. [1] The cover story is "Here Come Cars Without Wheels" by a Popular Science editor, Martin Man, with photos by Robert Borst. The cover illustration is based on the photos by Borst. Popular Science Monthly was founded in 1872 and published as a scientific journal until September 1915. The title was sold to the Modern Publishing Company of New York and their Electrician and Mechanic / World's Advance magazine assumed the title in October 1915. The magazine is still published today (2008). |
| Nguồn gốc | Source: The source was not provided when the image was uploaded but it appears to be from Dr. William R. Bertelsen paper "50 Years of Aeronautical Research by Aeromobile Inc." [2] The 1959 issues of Popular Science are readily available on online auction sites. |
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| Giấy phép (Dùng lại tập tin) |
Works copyrighted before 1964 had to have the copyright renewed sometime in the 28th year. If the copyright was not renewed the work is in the public domain. It is best to search 6 months before and after the required year. Some magazines are published the month before the cover date and some registrations may be delayed for a few months. This 1959 issue of Popular Science Monthly would have to be renewed in 1986. These records are in the online catalog found here: http://www.copyright.gov/records . Search the catalog for the title Popular Science. The renewal records have a Copyright Number that starts with RE. There is one for a single article from the February 1958 issue (RE0000302010) but no others for the 1950s. The copyright on the magazine was not renewed and it is in the public domain. |
Giấy phép
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This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. 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 (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
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| hiện tại | 07:33, ngày 9 tháng 3 năm 2005 | | 350×506 (59 kB) | Riffsyphon1024 | Popular Science Cover {{magazine cover}} |
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