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It was about 6'o Clock in the Evening. Suddenly I noticed A wierd Cloud in the middle of the sky.

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Is there Natural Phenomenon responsible for creating such prefect clouds? & What it is?

or

Human activities like Climate Change?

or

Just a Coincidence ?

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  • $\begingroup$ Are you by change talking about how there's a sharp line on the bottom of the white cloud? I might well be able to help some on that. Or if not, what stands out as weird about it to you? $\endgroup$
    – JeopardyTempest
    Sep 8 '18 at 8:48
  • $\begingroup$ Two other things that might help sort it out some is what location you were at when you took it, and what date (or approximate time of year) it was when you took it :-) $\endgroup$
    – JeopardyTempest
    Sep 8 '18 at 8:50
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    $\begingroup$ @JeopardyTempest In my life I've never witness such a cloud, its so rare to have such a straight edge... Is it an illusion? $\endgroup$
    – Shehroz Khan
    Sep 8 '18 at 13:39
  • $\begingroup$ The straight edge on the bottom? $\endgroup$
    – JeopardyTempest
    Sep 8 '18 at 15:19
  • $\begingroup$ (If you find the language a bit of a challenge in this question, and online translators no help, perhaps we can find someone to help in chat? What language do you speak?) $\endgroup$
    – JeopardyTempest
    Sep 8 '18 at 15:21
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The left edge of the cloud is a real edge, irregular and fuzzy as expected. However, the lower sharp edge is just an illusion due to illumination. Just before sunrise or after sunset, the sun can illuminate the upper clouds but not the lower ones. If a cloud happen to be in the limit between illuminated clouds and shaded clouds, it will have its upper side illuminated and the lower one in the shade. That is what you are seeing, the lower edge is not the edge of the cloud, is just the limit of the illuminated part of it.

If you pay attention you can follow the contrast in illumination even outside of the cloud to the left. Where the illuminated air above the line have a glow not visible in the part under the illuminated part.

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  • $\begingroup$ Sun is on Right side, Its sunset & west is on left. Wait for Edit $\endgroup$
    – Shehroz Khan
    Sep 8 '18 at 16:12
  • $\begingroup$ Check the question For the Directions as marked $\endgroup$
    – Shehroz Khan
    Sep 8 '18 at 16:22
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    $\begingroup$ If it is sunset and you are on planet Earth, the sun must be on the West. Therefore the Sun must be in the left side of the picture. Which, given the tilt of the lower edge it would be consistent with my interpretation. $\endgroup$
    – Camilo Rada
    Sep 8 '18 at 16:29
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    $\begingroup$ Yes, That's the answer I wanted Before. It solved my confusion. Thanks... $\endgroup$
    – Shehroz Khan
    Sep 8 '18 at 16:36
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First of all, there is no "non-natural" way to create clouds, unless you count vapor trails from jet aircraft.

Next, you seem to be confusing scattered light from one cloud layer with the local shape of another cloud layer. The human mind is highly skilled, so to speak, at creating shapes and figures where they don't really exist. Thus the observation that clouds look like dragons, or fish, or cathedrals. You've simply photographed a shape that attracted you.

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  • $\begingroup$ Well, there's youtube.com/watch?v=BIpeNs5OWbo and even aviation.stackexchange.com/questions/19241/… as slight alternatives to creating clouds. That said I think your analysis is generally on target :-) $\endgroup$
    – JeopardyTempest
    Sep 8 '18 at 8:12
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    $\begingroup$ Though to me at least, your answer seems to sort of come off a little harsh in it's tone. Maybe others see it differently, but phrases like "first of all", "confusing", and "simply" seem spots where you could apply friendlier wording :-) And maybe it's could be see as a tad terse/abrupt. I'm definitely a fan in trying to be warm and to convey things in an approachable and understanding way to questioners (many just may not consider such things or be of varying ages or backgrounds... heck, who knows, could even be from a person who lives in a remote desert and almost never sees clouds!) $\endgroup$
    – JeopardyTempest
    Sep 8 '18 at 8:19
  • $\begingroup$ Really not intending such thoughts to be anything to stress you or to take personally, and I may be totally off base... just hoping to provide independent input as to how someone might interpret things, and encourage us all. I, as many, can certainly still use some work to improve my language and tone in many situations :-) :-) :-) $\endgroup$
    – JeopardyTempest
    Sep 8 '18 at 8:24
  • $\begingroup$ but look at the bottom Edge of the Cloud, Its edge is so straight. $\endgroup$
    – Shehroz Khan
    Sep 8 '18 at 13:37
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    $\begingroup$ Yes I strongly Agree with that, its called Pareidolia. But its not really involved in that? $\endgroup$
    – Shehroz Khan
    Sep 8 '18 at 13:50

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