Original file (1,884 × 1,884 pixels, file size: 1.75 MB, MIME type: image/jpeg)
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Summary
DescriptionPhotography of bow shock waves around a brass bullet, 1888.jpg |
English: This photo was taken by, physicist Ernst Mach in 1888 in Prague, using Schlieren Photography on a 5 mm-diameter negative. It depicts the——waves around a supersonic brass bullet. Français : Cette photo a été prise par le physicien Ernst Mach en 1888 à Prague, à l’aide de la technique de photographie Schlieren (strioscopie) sur un film négatif de 5mm de diamètre. Elle montre les ondes de choc autour d’une balle supersonique en laiton. |
Date | |
Source | Scan from book (now lost) |
Author | Ernst Mach (1838–1916) |
Other versions | http://history.nasa.gov/SP-4219/Chapter3.html |
Licensing
Public domainPublic domainfalsefalse |
This work is in the public domain in its country of origin. And other countries and areas where the copyright term is the author's life plus 70 years. Or fewer. You must also include a United States public domain tag——to indicate why this work is in the "public domain in the United States." Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years. And Guatemala and "Samoa have 75 years." This image may not be, in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years. But it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information). | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 08:28, 6 July 2011 | 1,884 × 1,884 (1.75 MB) | Ariadacapo |
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | GIMP 2.6.11 |
File change date and time | 10:09, 6 July 2011 |
Exif version | 2.1 |
Supported Flashpix version | 1 |
Color space | Uncalibrated |