Talk:Circumzenithal arc: Difference between revisions
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== "Artificial circumzenithal arc" chapter is misleading == |
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The resulting arc of the experiment is: Bent the wrong way (open towards the "sun", not the zenith) and colours are in inversed order (blue nearest to the "sun"). I think what has to be considered is that the real arc is formed from crystals at many different positions (not only different orientations). The colours are then swapped in their order as the light rays from different drystals cross, just like the rays from different water drops in a rainbow. The shape is a bit more complicated. As far as I could reproduce it using four glasses, their arcs cross at some point (where the observer stands and looks up). Glasses placed at the outside have to be moved towards the observer/zenith so that their arcs cross at the same point as the inner glasses. Therefore you get an arc bent around the zenith, as the glasses/ crystals you see have to be moved on a circle around the zenith to make them visible at the point of observation.I '''think''' this is how the arc is formed. The single glass method is definitely not a complete model, I think this should atleast be mentioned somewhere. |
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[[Special:Contributions/93.216.41.252|93.216.41.252]] ([[User talk:93.216.41.252|talk]]) 18:55, 25 June 2017 (UTC) |
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"Artificial circumzenithal arc" chapter is misleading
The resulting arc of the experiment is: Bent the wrong way (open towards the "sun", not the zenith) and colours are in inversed order (blue nearest to the "sun"). I think what has to be considered is that the real arc is formed from crystals at many different positions (not only different orientations). The colours are then swapped in their order as the light rays from different drystals cross, just like the rays from different water drops in a rainbow. The shape is a bit more complicated. As far as I could reproduce it using four glasses, their arcs cross at some point (where the observer stands and looks up). Glasses placed at the outside have to be moved towards the observer/zenith so that their arcs cross at the same point as the inner glasses. Therefore you get an arc bent around the zenith, as the glasses/ crystals you see have to be moved on a circle around the zenith to make them visible at the point of observation.I think this is how the arc is formed. The single glass method is definitely not a complete model, I think this should atleast be mentioned somewhere. 93.216.41.252 (talk) 18:55, 25 June 2017 (UTC)