explain xkcd - User contributions [en]

Talk:3215: Solar Warning

2026-03-04T18:43:41Z

47.248.235.170:

No comments yet, add the first comment! [[Special:Contributions/45.178.1.151|45.178.1.151]] 15:32, 4 March 2026 (UTC)

I feel like, the sunglasses in the title text are a reference to the game Minesweeper, in which the iconic sun puts on sunglasses after the minefield has been completely cleared. To start a new game, you click on the sun, the minefield gets reset, the sun takes its sunglasses off and you are facing refreshed "danger". [[Special:Contributions/2A02:3100:B0BF:FE00:383B:CEDD:D49C:6689|2A02:3100:B0BF:FE00:383B:CEDD:D49C:6689]] 16:21, 4 March 2026 (UTC)
: I was thinking only in the context of emoji, but that's actually a really good possibility, too! 16:23, 4 March 2026 (UTC)
:: I forgot to sign my comment. :sadge: [[Special:Contributions/130.76.187.47|130.76.187.47]] 16:24, 4 March 2026 (UTC)
: I feel like the Minesweeper face isn't a sun, instead being a generic face. This is probably a reference to stereotypical depictions of a smiling sun.[[User:SlimothyJ|SlimothyJ]] ([[User talk:SlimothyJ|talk]]) 16:29, 4 March 2026 (UTC)
: I think Minesweeper is just a "sunglasses smiley", really, but I left that in when (fighting edit-conflicts, which I won't complain about) I added something on past "Sun wearing sunglasses" lore from Randall, plus acouple of the "glasses-pull" memes, various bits of which I've partially linked. And, though Randall does not adhere to this, it's better as ''the Sun'', unless you're just talking about it (or any other) being ''a sun'' or ''the sun of a different solar system''. [[Special:Contributions/82.132.239.55|82.132.239.55]] 18:12, 4 March 2026 (UTC)

I'm sure this is referencing the "Jack-O-Lantern"[https://science.nasa.gov/resource/pumpkin-sun/] and "smiley face"[https://svs.gsfc.nasa.gov/31213/] images of the sun that observatories sometimes put out for good press. [[Special:Contributions/64.201.132.210|64.201.132.210]] 16:53, 4 March 2026 (UTC)

I feel like, on recent evidence, this is as good as the explanation's going to get - we should just leave it as is. [[Special:Contributions/82.13.184.33|82.13.184.33]] 17:01, 4 March 2026 (UTC)

I've done a stub explanation. My personal interpretation is that Randall is riffing on children's media, in which the sun is stereotypically depicted smiling and/or wearing sunglasses. --'''''[[User:DollarStoreBa'al|DollarStoreBa'al]][[User Talk:DollarStoreBa'al|Converse]] 17:51, 4 March 2026 (UTC)
:I personally think this because other people's proposals have been incredibly niche things (why would Randall reference jack-o-lanterns in March?). --'''''[[User:DollarStoreBa'al|DollarStoreBa'al]][[User Talk:DollarStoreBa'al|Converse]] 17:52, 4 March 2026 (UTC)

I think all three of these (sun with sunglasses, smiling sun, frowning sun) are unicode emojis. And the progression from sun with sunglasses -> smiling sun, and smiling sun -> frowning sun, mirrors the progression from a "watch" to a "warning". I.e. a "thunderstorm watch" is less severe than a "thunderstorm warning". [[Special:Contributions/47.248.235.170|47.248.235.170]] 18:43, 4 March 2026 (UTC)Pat

3194: 16 Part Epoxy

2026-01-15T18:07:10Z

47.248.235.170:

{{comic
| number = 3194
| date = January 14, 2026
| title = 16 Part Epoxy
| image = 16_part_epoxy_2x.png
| imagesize = 511x595px
| noexpand = true
| titletext = Some surfaces may seem difficult to glue. But if you research the materials, find tables of what adhesives work on them, and prepare your surfaces carefully, you can fail to glue them in a fun NEW way that fills your house with dangerous vapors.
}}

==Explanation==
{{incomplete|This page was created by a gorilla glue gorilla. Don't remove this notice too soon.}}

This comic refers to {{w|Epoxy|epoxy}} — substances used as adhesives, sealants, and coatings. Many types of epoxy are multi-part, where the components, such as resin and a hardener, are stored separately. For ease of use, this can be in parallel syringes (of equal volume, or suitably different where a mixing ratio of 2:1 or 3:2 might be desired) such that the user simultaneously squeezes out the isolated chemicals by depressing both syringes at once. They are then mixed together on the target surface, so that the combined epoxy quickly cures into the desired solid, binding whatever surfaces upon which it is applied and then brought into contact with. This comic presents a fictitious 16-part epoxy, with the same apparent logic of parallel deposition in mind, with many components that are implausible or make fun of common problems people have when using epoxy in real life.

The title text references how not all epoxies and glues work on every material, and that applying them on some can require special techniques or products. Some industrial or industrial-grade adhesives contain solvents (e.g. {{w|tetrachloroethylene}}, which is used in E6000 glue) that release harmful vapors as they cure. If used improperly, this can result in the release of chemical vapors in an enclosed space along other dangerous side-effects, while also not working as a glue as intended.

{| class="wikitable"
|-
!Type
!Real?
!Explanation
|-
|Resin
|{{Yes}}
|A liquid which turns into a polymer when mixed with a hardener.
|-
|Hardener
|{{Yes}}
|A thick liquid which is mixed with resin to create a durable polymer which is commonly used as a glue.
|-
|Filler
|{{Yes}}
|An optional addition to the hardener and resin which changes the properties of the polymer.

Some epoxies are sold as products known as 'fillers', used to repair and cover cracks, holes, and imperfections.
|-
|Softener
|{{Yes}}
|A substance which is added to polymer to soften the polymer and increase its impact resistance.
|-
|Rosin
|{{Yes}}
|While this looks like a joke entry, this is actually an alternative to resin which is extracted naturally rather than synthesized from other chemicals. Rosin is frequently applied to the bows of string instruments like violins or cellos to improve the sound, as immortalized in the famous song "The Devil Went Down to Georgia".
|-
|Stuff that bonds permanently to skin and nothing else
|{{No}}
|One key annoyance with sticky substances is the difficulty of removing them when they bond to skin. In this case, the polymer bonds solely to skin instead of anything else, making it mostly only really useful for a practical joke. Some epoxies are specifically designed for gluing skin, usually for medical purposes, but none are known to bond to skin exclusively.{{acn}} The most common kinds are moisture-activated, which means they will not easily bond to fully dried surfaces, where often most non-skin surfaces are dry.{{acn}}
|-
|Stuff that will crack and turn white over a few days, for decorative appearance
|{{No|Not effective as epoxy}}
|'Crackle effect' is a real thing for crafters, and can be created by mixing paint and glue, but is not recommended if you want two surfaces to adhere, since most paint is made to be non-adherent in order to be durable{{acn}}. Poor finish, where an intended smooth uniform surface cracks or discolours, can be a frustrating problem when applying epoxy mixtures to visible surfaces, especially when the problem only appears some time after you've congratulated yourself on a job well-done.
|-
|Placebo
|{{Maybe|Not in the field of adhesives}}
|The {{w|placebo effect}} happens when somebody is told that something has a certain effect, when in reality there is no effect. This is commonly used in medical studies to determine whether a medication actually does something as opposed to simply having a {{w|psychosomatic effect}}. Using this term to describe a type of polymer suggests it would make someone believe it is gluing things together without actually doing anything, which is unlikely. Alternatively, this could refer to a component or filler that claims to serve a specific purpose while having no true benefit, causing the perception of benefit to the consumer (presumably causing better reviews).
|-
|Minced duct tape
|{{No}}
|{{w|Duct tape}} is widely used as a way to join and/cover things, sometimes in contexts where an epoxy might provide a more high-quality solution. [[Randall]] is pretending that having very small pieces of tape in the mix would add to the epoxy's ability to hold things together. In reality, cutting duct tape into small pieces would weaken it and make it ''less'' effective at sticking things together. In the UK, the word 'minced' can also mean 'made worthless', which would also not fare well for the adhesive.
|-
|Acetone fragrance
|{{No}}
|Acetone is a volatile solvent used in a number of glues and paints (incl. nail polish), but it weakens epoxy and can even be used to remove uncured epoxy. It has a strong, distinctive, very unpleasant smell, and is actually toxic, meaning that fragrance is an odd reason for adding it to any product. It's likely being added here to give the epoxy a familiar "chemical smell" that people associate with industrial compounds.
|-
|Powdered bar magnets
|{{No}}
|This might still work if the pieces could somehow be aligned correctly, as each tiny piece of magnet would still be a magnet in its own right, capable of attracting the other tiny magnets, and thus resisting tension forces. However, it would be much worse than a normal bar magnet, since the magnetic force would be weaker than those that held the original bar together. In any case, it's much more likely that each piece would end up randomly orientated, and therefore as likely to repel as attract each other.
|-
|Polyethylvinylesteracetate
|{{Maybe|Not in epoxy}}
|This appears to be a reference to {{w|ethylene-vinyl acetate|Poly (ethylene-vinyl acetate)}}, some formulations of which can be used as the adhesive in hot-glue guns. Vinyl acetate is an ester, so the inclusion of that term is redundant. The cadence of the constructed word may also be a reference to the television episode {{w|Lucy Does a TV Commercial}} and its memorable product "Vitameatavegamin". It also resembles the kind of thing often seen in ingredients lists for common household products such as soaps and cleaners, which are fairly meaningless to the average person buying them.
|-
|2-Polyethylvinylesteracetate
|{{Maybe|Unclear}}
|This sounds almost exactly the same as the above item, but {{w|2-Polyprenyl-6-hydroxyphenol methylase|a name with a "2-" prefix}} generally indicates that the initial bit of the name is a {{w|functional group}} attached to the ''second'' position along a chemical chain (often being the carbon-carbon 'spine' of a molecule, in large-molecule organic chemistry), rather than attached to its end. Because the molecule name is (possibly deliberately) malformed, it's hard to tell what is supposed to be attached to the second carbon of what subunit.
|-
|Salt and pepper to taste
|{{Maybe|Not for taste, but salt can be useful}}
|Salt and pepper are two incredibly popular condiments which are used to enhance a dish's flavor, and "salt and pepper to taste" is a phrase found in many (food) recipes. But the taste of your epoxy should not be your concern. Do not eat epoxy. But salt or sand or other fine grains are sometimes recommended to add a bit of grit to an adhesive. Generally glues or epoxies need the bonded materials to be firmly held together while the glue cures. But when first pressed together, any excess glue is squeezed out and can cause the surfaces to slip around and need to be re-aligned. Any extra friction in the epoxy can help alleviate that.
|-
|Blood sample from the Gorilla Glue gorillas
|{{No}}
|{{w|Gorilla Glue}} is a popular brand of superglue which uses {{w|gorillas}} as its mascot. In this case, the blood of the gorillas would be extracted and placed in the polymer, which would not be any more efficacious than any other gorilla's blood, because they're depicted as regular gorillas that just happen to carry glue everywhere. Extracting and consuming the blood of a creature or person in an attempt to inherit some of the qualities of the 'donor' is a common trope, so this may be suggesting that including this will give the epoxy 'the strength of a gorilla', commonly considered a powerful animal.

Blood has been [https://www.sciencedirect.com/topics/engineering/blood-glue historically used in glue], though not typically that of gorillas.
|-
|Stuff that bonds to every known material except yours
|{{No}}
|Another common annoyance when using an adhesive is that each glue type only forms an adhesive bond with certain materials. In this case, the polymer would bond with every material except for the one you were using, causing great distress and leaving you in a fix.
|}

==Transcript==
{{incomplete transcript|Don't remove this notice too soon.}}

Standard 16-Part Epoxy

[An epoxy applicator with a single push bar and sixteen differently-colored chambers, each labeled]

Resin

Hardener

Filler

Softener

Rosin

Stuff that bonds permanently to skin and nothing else

Stuff that will turn white and crack over a few days, for decorative appearance

Placebo

Minced duct tape

Acetone Fragrance

Powdered bar magnets

Polyethylvinylesteracetate

2-Polyethylvinylesteracetate

Salt and pepper to taste

Blood sample from the Gorilla Glue gorillas

Stuff that bonds to every known material except yours

{{comic discussion}}<noinclude>

[[Category:Comics with color]]

Talk:3186: Truly Universal Outlet

2025-12-26T18:39:50Z

47.248.235.170:

No comments yet, add the first comment! [[User:CalibansCreations|'''Caliban''']] ([[User talk:CalibansCreations|talk]]) 16:25, 26 December 2025 (UTC)

I checked on the info.0.json and there doesn't seem to be a transcript for this one. I don't know whether that's normal, since I understand that most comics have one, but I wrote in a basic transcript. I might have just not looked in the right place. [[User:R128|R128]] ([[User talk:R128|talk]]) 16:58, 26 December 2025 (UTC)

I try not to be nationalistic or jingoistic about anything, but I'm sorry—British plugs are simply the best plugs. Strong, easy to use and safe—fits snugly into the socket, can't expose live or neutral outlets without first connecting to earth, no overly sharp pins. I don't like myself for saying this, but I honestly think the rest of the world would be better off switching to our plugs.[[Special:Contributions/109.149.114.159|109.149.114.159]] 18:00, 26 December 2025 (UTC)

Someone will probably address this, but voltage issues aside, I would guess that the USAGE of the various pins across countries is likely different in catastrophic ways. E.g. I imagine that one glob of pins is hot/live in one country but ground/earth in others so that plugging an appliance from different countries into the universal outlet would cause shocks, breaker trips, explosions, etc. I did laugh at the title text - yes, I'm sure building inspectors are constantly encountering this mess. ;) [[Special:Contributions/47.248.235.170|47.248.235.170]] 18:39, 26 December 2025 (UTC)Pat

Talk:3175: Website Task Flowchart

2025-12-01T20:24:29Z

47.248.235.170:

> who are available to produce words at you 24/7!

Is "produce words at you" an AI reference? -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 19:40, 1 December 2025 (UTC)
:I think it is likely an AI reference. —[[User:Theusaf|theusaf]] ([[User talk:Theusaf|talk]]) 19:46, 1 December 2025 (UTC)
:I tend to agree, but it does say "live agents" earlier so it could also be a reference to live but non-native language speakers in a foreign call center. [[Special:Contributions/47.248.235.170|47.248.235.170]] 20:24, 1 December 2025 (UTC)Pat

wow second commenter --[[User:LazyTiger0203|LazyTiger0203]] ([[User talk:LazyTiger0203|talk]]) 19:45, 1 December 2025 (UTC)

Is Randall just now finding out about this?!? What sequestered Internet space has he been hiding in? I want. Of course it's probably gone now. [[Special:Contributions/205.175.118.2|205.175.118.2]] 20:20, 1 December 2025 (UTC)

3147: Hiking

2025-09-26T20:05:01Z

47.248.235.170: added mention of water tank

{{comic
| number = 3147
| date = September 26, 2025
| title = Hiking
| image = hiking_2x.png
| imagesize = 740x456px
| noexpand = true
| titletext = Every downhill walk is a waterslide that might have been.
}}

==Explanation==
{{incomplete|This page was created by AN ON-DEMAND COMIC DELIVERY SERVICE. Don't remove this notice too soon.}}
On-demand delivery is a service where you can order a product and it will be delivered to you within hours or even minutes. The most well-known of these are food delivery services like {{w|DoorDash}} and {{w|GrubHub}}, but there are also similar services for larger goods.

In the comic there's a vendor of {{w|waterslides}} that provides on-demand delivery using {{w|drones}} that fly the waterslide to a location you specify in the order, apparently complete with a water supply tank. While hiking through a terrain with lots of hills, [[Cueball]] and [[Megan]] order one whenever they're on their way up a hill, so that it will be delivered to the downhill side and they can have fun sliding down.

==Transcript==
{{incomplete transcript|Don't remove this notice too soon.}}

{{comic discussion}}<noinclude>

Talk:3142: (City)-Style Pizza

2025-09-15T22:07:31Z

47.248.235.170:

Altoona-style is listed first in https://en.wikipedia.org/wiki/Pizza_in_the_United_States#Variations but that's because the list is alphabetical. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 21:12, 15 September 2025 (UTC)

I prefer +style pizza. [[User:SDSpivey|SDSpivey]] ([[User talk:SDSpivey|talk]]) 21:16, 15 September 2025 (UTC)

I’m pretty sure this comic is intended to be titled “<City>-Style Pizza”, as it is labeled in the HTML of xkcd.com (notably, xkcd.com itsel uses “-Style Pizza” for the <title> elements and the rss/atom feeds, but not for the visible title. (But there, the “<city>” gets swallowed by the browser)--[[User:Nleanba|Nleanba]] ([[User talk:Nleanba|talk]]) 21:49, 15 September 2025 (UTC)

Altoona-style most literally looks like a sandwich except cheese instead of a top bun《プロキシ》(XKCD中毒者) 21:54, 15 September 2025 (UTC)
:Yeah, a bunch of open-faced sandwiches side-by-side. [[Special:Contributions/47.248.235.170|47.248.235.170]] 22:07, 15 September 2025 (UTC)Pat

Talk:3126: Disclaimer

2025-08-08T20:44:13Z

47.248.235.170:

Is this related to the ChatGPT 5 release
: Probably. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 19:30, 8 August 2025 (UTC)

Was anyone tempted to ask ChatGPT to write an explanation of this comic? [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 19:30, 8 August 2025 (UTC)

Considering who Tom Bombadil is, anything less than a dissertation-length discussion is incomplete. PS: The captcha wanted me to select pictures that contained parking meters, but it showed what looked like a mailbox. Maybe parking meters look like mailboxes in the parts of Middle Earth that I haven't visited yet. [[Special:Contributions/64.201.132.210|64.201.132.210]] 20:23, 8 August 2025 (UTC)

Am I the only one wondering if Randall actually made such a post? It would be fun to find but without knowing what LOTR boards he frequents and his screen name, it would be pretty difficult. [[Special:Contributions/47.248.235.170|47.248.235.170]] 20:44, 8 August 2025 (UTC)Pat

Talk:3112: Geology Murder

2025-07-07T22:05:17Z

47.248.235.170:

Is it just me, or is xkcd.com being non-responsive? Obviously, it has been successfully grabbed from by the BOT, and I even checked a few "is it down" sites... which say that it's up. But I'm getting nothing back but spinny cursors, going to either xkcd.com or any xkcd.com/<number> ...with no other reason to believe that 'it ''is'' just me', like other clearly running places also not being reachable in my own case. [[Special:Contributions/92.23.2.228|92.23.2.228]] 20:09, 7 July 2025 (UTC)
:It worked fine for me on the first attempt, so I guess it's just you. But when I was submitting the transcript here I got a "make sure you're logged in" error. Resubmitting (without having to re-login) worked. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 20:25, 7 July 2025 (UTC)
:And I got the same error when first submitting the above comment. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 20:25, 7 July 2025 (UTC)
:The transcript silently corrects the spelling error (?) in uncomformably. [[Special:Contributions/208.82.100.219|208.82.100.219]] 21:00, 7 July 2025 (UTC)
:It's been intermittently non-responsive and/or landing on error pages for over a month. Speculation ranges from issues with the server to issues with the content-delivery-network (CloudFlare), to a deliberate attack, to AI-scraping bots, to an iron-rich penetration from an alternate universe (just added that one to the list), and probably more. [[Special:Contributions/64.201.132.210|64.201.132.210]] 21:07, 7 July 2025 (UTC)
:I haven't noticed xkcd.com being non-responsive but I have noticed ''this'' site non-responsive from time-to-time. [[Special:Contributions/47.248.235.170|47.248.235.170]] 22:05, 7 July 2025 (UTC)Pat

Talk:3107: Weather Balloons

2025-06-25T21:35:28Z

47.248.235.170:

If you could make weather balloons out of plastic grocery bags you could address global warming and plastic bag pollution at the same time. [[Special:Contributions/47.248.235.170|47.248.235.170]] 21:35, 25 June 2025 (UTC)Pat

Talk:3100: Alert Sound

2025-06-09T21:35:04Z

47.248.235.170:

https://www.amazon.com/Funny-Pranks-Annoying-Noise-Maker/dp/B08KG6XHN1

The reviews are hilarious. [[Special:Contributions/47.248.235.170|47.248.235.170]] 21:35, 9 June 2025 (UTC)Pat