File:Optical refraction at water surface.jpg
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[edit]DescriptionOptical refraction at water surface.jpg |
English: A vertical ruler and an inclined straw in a plastic box full of water seen under shallow angle. Due to refraction, the straw appears kinked and the scale compressed. The angle of incidence and the angle of refraction can be estimated by the aspect ratio of the slice of cork and the coins, respectively.
Deutsch: Ein Lineal (vertikal) und ein Trinkhalm (schräg) in einer randvoll mit Wasser gefüllten Dose, aufgenommen unter flachem Winkel. Durch Lichtbrechung erscheint der Halm geknickt und die Skala komprimiert. Einfalls- und Brechungswinkel können aus der elliptischen Ansicht der Korkscheibe bzw. der Münzen geschätzt werden. Entsprechend der Gegenstandsweite von etwa 40 cm nehmen die Winkel von unten nach oben zu und damit auch die Hebung, wodurch der Halm leicht gebogen erscheint. |
Date | |
Source | Own work |
Author | Rainald62 |
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[edit]I, the copyright holder of this work, hereby publish it under the following licenses:
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:29, 18 June 2012 | 775 × 658 (140 KB) | Rainald62 (talk | contribs) | added a slice of cork and a straw | |
22:06, 17 June 2012 | 553 × 570 (85 KB) | Rainald62 (talk | contribs) | {{Information |Description=A ruler standing vertically in a plastic box full of water seen under shallow angle. The part of the scale which is under water appears compressed due to refraction. |Source={{own}} |Date=2012-06-17 |Author= [[User:Rainald62|... |
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