2915: Eclipse Clouds

Explain xkcd: It's 'cause you're dumb.
Revision as of 17:18, 3 April 2024 by Barmar (talk | contribs) (Explanation)
Jump to: navigation, search
Eclipse Clouds
The rare compound solar-lunar-nephelogical eclipse
Title text: The rare compound solar-lunar-nephelogical eclipse

Explanation

Ambox notice.png This explanation may be incomplete or incorrect: Created by a SOMETHING OBSCURED BY CLOUDS - Please change this comment when editing this page. Do NOT delete this tag too soon.
If you can address this issue, please edit the page! Thanks.

Following on from 2914: Eclipse Coolness, Randall is anticipating the solar eclipse that will be (hopefully) visible in the United States on the upcoming Monday.

In that comic, he mostly deals with the issues of geography: that not having the foresight to actually be in a good location will make the eclipse less than spectacular. In this comic, he establishes the possible effects of the weather, which is a far more uncertain element in the lead up to the day (or even upon the day itself), regardless of how much careful planning one might have conducted in advance.

The goal is to see the Moon fully obscure the Sun, as seen from the Earth. What is not wanted is for a cloud to obscure (the Moon obscuring) the Sun. So there are web sites providing weather forecasts for locations where the eclipse will be visible, to help eclipse chasers plan the best place to view it.

The title-text references the 'alignment' of Sun, Moon and cloud, describing it as rare, although this is not really as desirable as it might make it sound.

At the time that this comic was posted, many of the weather forcasts predicted overcast skies. This is extremely dissapointing to anyone wishing to watch the moon slowly block out the sun.

The off-panel voice (maybe Megan?) points out that Cueball wanted to see somthing block out the sun, so this technecally fits his wish.

Transcript

Ambox notice.png This transcript is incomplete. Please help editing it! Thanks.
[Cueball sits on an ergonomic office chair at a desk, typing at his computer.]
Cueball: These eclipse weather forecasts are killing me.
Laptop: refresh
[Cueball remains at his desk. An off-panel voice speaks.]
Off-panel voice: So you really want to see something block out the sun...
Off-panel voice: ...But not a cloud. It has to be the Moon specifically.
Cueball: My tastes are very singular!


comment.png add a comment! ⋅ comment.png add a topic (use sparingly)! ⋅ Icons-mini-action refresh blue.gif refresh comments!

Discussion

I suspect Friday's and next Monday's comics will also be about the eclipse. We should be proactive and create a category for them. Barmar (talk) 17:12, 3 April 2024 (UTC)

Might explain why there was no time to fit in a decent AF comic. (And this one definitely reminds me of '99!) 172.69.43.225 17:31, 3 April 2024 (UTC)

Nephele (νεφέλη) is Greek for cloud. 172.71.123.81 17:14, 3 April 2024 (UTC)Ben

I'm still trying to find a good way to word it, for those not already aware. (There are a number of related words, c.f. germanic "nebel", "nebulous" or of course "nephelococcygia"). 172.69.43.225 17:31, 3 April 2024 (UTC)

I thought the joke in the title text is that a combined solar-lunar-nephelogical eclipse is impossible, not just "rare". You can't have a solar and lunar eclipse at the same time. Either of them can be nephelogical, though. Barmar (talk) 17:16, 3 April 2024 (UTC)

Triple-conjunctions (plus the 'viewpoint', to make it a four-body syzygy) are a thing, though. A rare thing. And not to be confused with the standard meaning of triple conjunction, but I'm not sure what else to call it (when not just a sequence across time). 172.69.43.225 17:31, 3 April 2024 (UTC)
no the clouds are occluding the moon and the moon is occluding the sun so it is a lunar eclipse. Not a nephelogical eclipse though because the clouds aren’t occluded
They are if you close your eyes.172.69.43.242 08:28, 4 April 2024 (UTC)
If you are in Australia through India, on Monday, you will be able have a solar and lunar eclipse, as the moon will block the sun and the Earth will block the moon. :) Extremely rare. SDSpivey (talk) 15:27, 4 April 2024 (UTC)


We don't already have a catagory for eclipses?? I'd have thought someone would have made one last eclipse, since there was so many comics about them Apollo11 (talk) 17:24, 3 April 2024 (UTC)

Someone has just been adding the (currently redlinked) Category:Solar eclipses. Which is admirable, but perhaps better to have established the actual Category first. (I would have suggested "Eclipses" be created. Or at least that as a super-category for the separate Solar and Lunar cats, plus any further eclipses that individually might be mentioned.) 172.70.90.190 17:41, 3 April 2024 (UTC)
I agree, the category should be simply "Eclipses", it was foolish to specify. I feel like it's not terribly likely Randall will make a lunar eclipse comic (I understand they're less rare, and result in a red or "blood" moon) but if he does it should be categorized alongside these, and right now that wouldn't be accurate. K.I.S.S., y'know? A simpler category "captures" more, which with such a small group is more desirable. NiceGuy1 (talk) 03:40, 20 April 2024 (UTC)
I created the category page. I wasn't sure what should go on it, so other people could review it guess who (if you want to | what i have done) 23:50, 3 April 2024 (UTC)

Oddly enough, clouds tend to disappear during eclipses. Strange, but true. 172.70.39.72 20:03, 3 April 2024 (UTC)

Maybe they're there, but you can't see them because it's dark :) Barmar (talk) 00:55, 4 April 2024 (UTC)
Clouds typically form because warm air rises, cools off in the higher layers and water vapor then condenses. During an eclipse, the Sun no longer heats the ground, temperature drops a bit, and thus the cloud forming mechanism is interrupted. This means that there will indeed be somewhat fewer/less dense clouds during an eclipse. It is definitely not enough to get rid of all possible clouds, but I have seen a lightly overcast sky clear up when the totality approached. 172.71.182.142 06:41, 4 April 2024 (UTC)
I've seen lightly overcast skies clear up when there wasn't an eclipse, though - how do you explain that?172.70.162.38 08:31, 4 April 2024 (UTC)
Clearly that was just an eclipse you couldn't see! Checkmate! 172.70.163.48 13:58, 4 April 2024 (UTC)
To the clear up without eclipse question: that could be a matter of the butterfly in the Brazil rainforest [i]not[/i] flapping its wings. We are usually only told what happens when the butterfly is active, but it stands to reason that quiet and clear weather results when the beastie is asleep. 172.71.99.218 06:59, 5 April 2024 (UTC)

Nobody has mentioned that Eclipse coolness tends to a Dirac delta function. I fear this site is dumbing down. 172.70.86.50 12:39, 4 April 2024 (UTC)

Perhaps its creator is more focused on financial functions these days - such as the one asserting that every equation in a published work cuts sales/hits by half. 172.71.147.18 19:49, 4 April 2024 (UTC)

I always thought Murphy's given name was Edsel.172.71.147.18 19:49, 4 April 2024 (UTC)

"My tastes are very singular" is a quote from Fifty Shades of Gray and, by the looks of it, a bit of a meme because of that. It seems to me the use here is intentional... and I don't know what to do with the info. Personally, I'd forget that book if I could. LRataplan (talk) 15:00, 5 April 2024 (UTC)

Surprising how Randall didn't post a comic this Friday. Anyone heard from him? 172.70.39.203 13:34, 6 April 2024 (UTC)

Given the absence of an April 5 comic, so far, I wondered if there is a trick in the April 3 strip (2915) and we are supposed to refresh (a lot) to see something new? But I tried about 20 times without results. -- 172.69.135.130 (talk) (please sign your comments with ~~~~)

Yeah, where'd the Friday comic go? -- Danger Kitty (talk) (please sign your comments with ~~~~)

The wait was worth it, I suppose. 172.70.39.76 01:02, 8 April 2024 (UTC)