File:Optical refraction at water surface.jpg
Dimension de ci prevision: 706 × 599 pixeles. Altri resolutiones: 283 × 240 pixeles | 565 × 480 pixeles | 775 × 658 pixeles.
Original file (775 × 658 pixeles, dimension del file: 140 KB, tip MIME: image/jpeg)
Descrition
| Descrition |
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 | |
| Fonte | Propri ovre |
| Autor | Rainald62 |
Autorisation
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Permission es concedet por copiar, distribuer e/o modificar ti document sub li conditiones del Autorisation de Documentation Líber del GNU, Version 1.2 o qualcunc version posteriori publicat per li Free Software Foundation; che nequant Section Ínvariant, nequant Textu de Covriment, e nequant Textu de Contra-Covriment. Un copie del autorisation es includet in li section nominat Autorisation de Documentation Líber del GNU. |
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| Version de | Miniatura | Dimensiones | Usator | Comentarie | |
|---|---|---|---|---|---|
| actual | 20:29, 18 junio 2012 | | 775 × 658 (140 KB) | Rainald62 | added a slice of cork and a straw |
| 22:06, 17 junio 2012 |  | 553 × 570 (85 KB) | Rainald62 | {{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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