Datoteka:Coolidge_xray_tube.jpg
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![Datoteka:Coolidge xray tube.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Coolidge_xray_tube.jpg/800px-Coolidge_xray_tube.jpg)
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Sažetak
OpisCoolidge xray tube.jpg | Photo of a Coolidge x-ray tube, from the early 1900s. The cathode is on the left, heated by a separate current passing through a filament, which releases electrons into the tube. The anode target is on the right. A high voltage of several thousand volts applied between the cathode and anode accelerates the electrons into a beam which strikes the anode, generating x-rays. The surface of the anode is angled so the x-rays are emitted in a downward direction, through the side of the tube. Alterations: rotated image 90° clockwise, cropped out frame |
Datum | |
Izvor | Downloaded from Daniel Frost Comstock & Leonard T. Troland (1917) The Nature of Matter and Electricity: An Outline of Modern Views, D. Van Nostrand Co., New York, p.190, Plate 5 on Google Books |
Autor | Daniel Frost Comstock |
Dopuštenje (Naknadna uporaba ove datoteke) |
Public domain - published in USA before 1923 |
Licencija
Public domainPublic domainfalsefalse |
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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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motiv
1917
image/jpeg
checksum engleski
773f47339f0147b182b7fc6ca8b5b308688248ac
data size engleski
118.317 Bajt
412 točka
1.076 točka
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Datum/Vrijeme | Minijatura | Dimenzije | Suradnik | Komentar | |
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sadašnja | 05:58, 24. prosinca 2007. | ![]() | 1.076 × 412 (116 KB) | Chetvorno | {{Information |Description=Photo of a Coolidge x-ray tube, from the early 1900s. Alterations: rotated image 90° clockwise, cropped out frame |Source=Downloaded from [http://books.google.com/books?id=jQA4AAAAMAAJ&pg=PA190 Daniel Frost Comstock & Leonard |
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