Talk:Polar night

message: The article says "In fact, polar regions typically get more light throughout the year than regions located closer to the equator."  
But what does "more light" mean?  Higher annual total insolation in watts?  Or (as I suspect) more hours of non-darkness?  Either way it should be clarified, and hopefully quantified. Chondrite 16:17, 15 September 2006 (UTC)
replies: text: IMO, since its meaning is nonsense, it must simply be treated as false. "Throughout"  means either "at every place" or "at every time", but never "cumulatively" so "throughout the year" means "more without an exception at any time". If the content hasn't already  be replaced, with an indication that someone found a RS stating something non-absurd to replace it with, it needs to be exiled to the edit history, preferably with an edit summary that says it's been discarded (with gratitude for the attempt to be helpful) as useless nonsense.--Jerzy•t 13:09, 20 September 2016 (UTC)
thread_title: More light than equatorial regions?

message: I remember something about villages south of the arctic circle, but experiencing polar nights due to being north of mountains, which put the whole village in shadow. I suppose it's probably more of a twilight than a night, but it might be worth mentionning. —The preceding unsigned comment was added by M0ffx (talk • contribs).
:That's an interesting detail, and it would bear mentioning, but it would really be best if we had some kind of citation for it. Do you remember where you learned this, and (ideally) can you dig up a reference we could cite? — coelacan talk — 03:45, 2 December 2006 (UTC)
replies: text: I _think_ the source may have been New Scientist. There was an idea (implemented I think) to place large mirrors at locations suitable to light parts of the village center. Unfortunately I can't remember which issue of New Scientist. M0ffx 21:39, 7 January 2007 (UTC)
replies: text: In Norway there are such places, in deep east-west valleys. For eaxmple Rjukan (62°20'N) and the Rauma valley (with Trollveggen) (59°50'N). Googling gives this link: http://themirrorproject.org/ --BIL (talk) 23:06, 18 November 2007 (UTC)
thread_title: Mountain Eclipses

message: How many 'pure' Astronomical Polar Nights are there at each pole? --75.165.4.183 (talk) 18:19, 24 December 2006 (UTC)
thread_title:  Number of Astronomical Polar Nights? 

message: @ 203.206.135.34 (talk) - It seems that the city name is unknown, but I could make a pretty good guess that it's Oslo as the original author is from Norway. Also, since the article is about the polar night and independent of a specific location, it shouldn't matter too much, but thanks for pointing it out.   Set Sail For The Seven Seas  185° 44' 30" NET   12:22, 8 September 2009 (UTC)
thread_title:  What City? 

message: Would be nice if there were an explanation of what actually causes the extreme variance in daylight cycles in polar regions. 75.161.248.110 (talk) 09:36, 29 January 2013 (UTC)
thread_title:  Cause of polar night? 

message: There doesn't really seem to be any polar night in Vorkuta during the 5th of January, It's more southern than Kiruna and polar night in Kiruna ends at the 1st of January. SuperHypercane (talk) 19:54, 11 December 2013 (UTC)
thread_title:  Polar Night in Vorkuta. 

message: Hello fellow Wikipedians,
I have just added archive links to  on Polar night. Please take a moment to review my edit. If necessary, add  after the link to keep me from modifying it. Alternatively, you can add  to keep me off the page altogether. I made the following changes:
*Added archive https://web.archive.org/20120904173515/http://collections.ic.gc.ca:80/simply_science/toc.htm to http://collections.ic.gc.ca/simply_science/toc.htm
When you have finished reviewing my changes, please set the checked parameter below to true to let others know.
Cheers.—cyberbot IITalk to my owner:Online 16:19, 11 February 2016 (UTC)
thread_title:  External links modified 

message: Being uncertain what "wikt:free horizon" means, i linked it to its article and found that that creates a red link. My bet is  that  "free horizon" relative to an observer means either 
* a point at which the observer's line of sight, perpendicular to the line thru them and the center of the planet, intersects only transparent space, or
* (more likely) a complete circle of such points: a clear full horizon or fully clear horizon. I'll probably populate my red link accordingly, accompanied by a stub tag, and disclaimers in the  edit-summary and on the talk page, to the effect that that's an AGFWAG, since three solid dicts fail to mention it.--Jerzy•t 12:39, 20 September 2016 (UTC)
thread_title:  [[Free horizon]]  

message: Since the earth is tilted 23.44°, and true night starts when the sun is 24° below the horizon, latitudes > than 42°34’ north or south of equator, complete darkness does not occur on the summer solstice, whereas latitudes > than 89°26’ north or south of equator, complete darkness does not occur on the winter solstice or within a half degree of either pole.  So therefore Emerald Campus twilight can last night around the winter solstice at the poles.  Emerald Campus Twilight is when the sun is between 18 and 24 degrees below the horizon.
98.31.29.4 (talk) 04:13, 15 December 2020 (UTC)
replies: text: There is no such a thing "Emerald Campus Twilight". Below 18°, the sky is complete dark. Also: astronomical twilight are hard to see within an urban environment with lot of sky glow from lighting pollution. זור987 (talk) 07:18, 15 December 2020 (UTC)
thread_title:  No complete darkness at the poles 

message: I start with the caveat that I don’t have time to make these edits myself, but I came to this page hoping for more description on how humans interact under polar night conditions. I had a few thoughts on how this page might might be improved:
- expanding a “mental health effects of polar night” subsection;
- a section on service provision in polar night conditions: I would imagine, for example, that virtually all public services - everything from postal delivery to park maintenance - have made lighting/ safety/ practicality operational changes to adapt to low light conditions;
- crime: someone, somewhere has to have written an academic paper with the hypothesis that crime is either higher under the atypical mental health conditions imposed by polar night, or that crime is simply harder to convict on due to low light conditions. 2603:7000:3D00:1882:9942:11F4:8E21:2E71 (talk) 12:24, 22 January 2024 (UTC)
thread_title:  Thoughts on how best to expand this page 

message: — Assignment last updated by Ail39 (talk) 04:36, 28 February 2024 (UTC)
thread_title: Wiki Education assignment: Intro to Technical Writing