Nostr notes by xkcdbot

title text: It has been −2,147,483,648 days since our last ...

2026-04-03T11:44:41Z

title text: It has been −2,147,483,648 days since our last integer overflow.

desktop link: https://xkcd.com/3228
mobile link: https://m.xkcd.com/3228
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3228

title text: This xkcd.com update introduces a variety of new ...

2026-04-01T20:09:40Z

title text: This xkcd.com update introduces a variety of new reading modes which can be activated through the menu.

desktop link: https://xkcd.com/3227
mobile link: https://m.xkcd.com/3227
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3227

title text: "While I try to do my part to destroy the ...

2026-03-30T21:39:41Z

title text: "While I try to do my part to destroy the environment, I try not to focus too much on individual responsibility. By pushing for broad policy changes, we can collectively do far more damage to the biosphere than any of us could on our own."

desktop link: https://xkcd.com/3226
mobile link: https://m.xkcd.com/3226
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3226

title text: We're working to make sure the images are as ...

2026-03-27T21:09:40Z

title text: We're working to make sure the images are as up-to-date and accurate as possible, with a minimum number of sponsored galaxies.

desktop link: https://xkcd.com/3225
mobile link: https://m.xkcd.com/3225
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3225

title text: Yes, the cosmic microwave background is great, but ...

2026-03-26T03:29:40Z

title text: Yes, the cosmic microwave background is great, but what about the earthly microwave foreground?

desktop link: https://xkcd.com/3224
mobile link: https://m.xkcd.com/3224
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3224

title text: Depending what corners of the internet you hang out ...

2026-03-23T18:29:40Z

title text: Depending what corners of the internet you hang out on, 'regular' may at times awkwardly coexist with 'sexy.'

desktop link: https://xkcd.com/3223
mobile link: https://m.xkcd.com/3223
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3223

title text: It's ok, I still have some nice, cool gas clouds ...

2026-03-20T20:09:39Z

title text: It's ok, I still have some nice, cool gas clouds that aren't collapsing. As long as nothing ionizes them, I can continue to enjoy their ... HEY! NO!!!

desktop link: https://xkcd.com/3222
mobile link: https://m.xkcd.com/3222
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3222

title text: 'Well, there's speculation that it's due ...

2026-03-18T17:24:39Z

title text: 'Well, there's speculation that it's due to a mantle hotspot.' --a geologist who's trying to cover up the fact that they didn't hear your question

desktop link: https://xkcd.com/3221
mobile link: https://m.xkcd.com/3221
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3221

title text: I don't get it. The peak acceleration for ...

2026-03-17T02:49:39Z

title text: I don't get it. The peak acceleration for passengers was WAY lower than in the giant-waterslide-loop-the-loop incident the other cruise line fired me for.

desktop link: https://xkcd.com/3220
mobile link: https://m.xkcd.com/3220
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3220

title text: An old astronomer trick for distinguishing the Sun ...

2026-03-13T19:39:37Z

title text: An old astronomer trick for distinguishing the Sun from other stars is to take multiple photos a few minutes apart and overlay them, making the Sun stand out due to its high proper motion.

desktop link: https://xkcd.com/3219
mobile link: https://m.xkcd.com/3219
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3219

title text: Aww, the oceanic crust and the continental crust are ...

2026-03-12T02:49:37Z

title text: Aww, the oceanic crust and the continental crust are getting married!

desktop link: https://xkcd.com/3218
mobile link: https://m.xkcd.com/3218
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3218

title text: As always, you are permitted to call one person for ...

2026-03-10T07:24:37Z

title text: As always, you are permitted to call one person for guidance, but that person must be a grandparent.

desktop link: https://xkcd.com/3217
mobile link: https://m.xkcd.com/3217
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3217

title text: This replaces the previous solar activity watch, ...

2026-03-04T14:44:36Z

title text: This replaces the previous solar activity watch, which was issued last month when the sun took off its sunglasses.

desktop link: https://xkcd.com/3215
mobile link: https://m.xkcd.com/3215
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3215

title text: Now that I've finally gotten an electric vehicle, ...

2026-03-03T03:29:35Z

title text: Now that I've finally gotten an electric vehicle, I'm never going back to an acoustic one.

desktop link: https://xkcd.com/3214
mobile link: https://m.xkcd.com/3214
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3214

title text: I mean, half of these are undefined. And your ...

2026-02-27T21:34:34Z

title text: I mean, half of these are undefined. And your multiplication dots are too low; they look like decimal points.

desktop link: https://xkcd.com/3213
mobile link: https://m.xkcd.com/3213
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3213

title text: After a lot of analysis, I've determined that ...

2026-02-26T02:39:34Z

title text: After a lot of analysis, I've determined that they're actually big red dots; they're just very far away.

desktop link: https://xkcd.com/3212
mobile link: https://m.xkcd.com/3212
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3212

title text: Oh, and do you have any tips on how to vacuum up ...

2026-02-24T05:34:35Z

title text: Oh, and do you have any tips on how to vacuum up copper that's melted into your carpet?

desktop link: https://xkcd.com/3211
mobile link: https://m.xkcd.com/3211
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3211

title text: 'If you've eliminated a few possibilities and ...

2026-02-20T19:59:33Z

title text: 'If you've eliminated a few possibilities and you can't think of any others, your weird theory is proven right' isn't quite as rhetorically compelling.

desktop link: https://xkcd.com/3210
mobile link: https://m.xkcd.com/3210
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3210

title text: My icebox plum trap easily captured William Carlos ...

2026-02-19T02:59:33Z

title text: My icebox plum trap easily captured William Carlos Williams. It took much less work than the infinite looping network of diverging paths I had to build in that yellow wood to ensnare Robert Frost.

desktop link: https://xkcd.com/3209
mobile link: https://m.xkcd.com/3209
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3209

title text: People say setting of fireworks indoors is dangerous, ...

2026-02-16T21:39:32Z

title text: People say setting of fireworks indoors is dangerous, but I looked at their energy release and it's like 10^-40 foe; totally negligible.

desktop link: https://xkcd.com/3208
mobile link: https://m.xkcd.com/3208
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3208

title text: 'The zero line in WMM2025 passes through a lot of ...

2026-02-14T02:34:32Z

title text: 'The zero line in WMM2025 passes through a lot of population centers; I wonder what year the largest share of the population lived in a zone of less than 5° of declination,' he thought, derailing all other tasks for the rest of the day.

desktop link: https://xkcd.com/3207
mobile link: https://m.xkcd.com/3207
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3207

title text: Do YOU remember the skylight being this big? desktop ...

2026-02-12T02:39:18Z

title text: Do YOU remember the skylight being this big?

desktop link: https://xkcd.com/3206
mobile link: https://m.xkcd.com/3206
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3206

title text: This dating is corroborated by the presence of stone ...

2026-02-10T04:19:17Z

title text: This dating is corroborated by the presence of stone tools at the site, rather than earlier and less effective helium ones.

desktop link: https://xkcd.com/3205
mobile link: https://m.xkcd.com/3205
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3205

title text: Staplers are actually in Pseudosuchia, making them ...

2026-02-06T19:24:17Z

title text: Staplers are actually in Pseudosuchia, making them more closely related to crocodiles than to dinosaurs.

desktop link: https://xkcd.com/3204
mobile link: https://m.xkcd.com/3204
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3204

title text: The discovery of a fully typographical star system ...

2026-02-05T04:39:16Z

title text: The discovery of a fully typographical star system comes with a big asterisk.

desktop link: https://xkcd.com/3203
mobile link: https://m.xkcd.com/3203
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3203

title text: Originally, the ceremony used a variety of rodents ...

2026-02-02T16:09:16Z

title text: Originally, the ceremony used a variety of rodents and mustelids, but over time most people agreed it made sense to standardize on a specific individual ground squirrel in Pennsylvania.

desktop link: https://xkcd.com/3202
mobile link: https://m.xkcd.com/3202
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3202

title text: There's also a proof without content of a ...

2026-01-30T17:34:16Z

title text: There's also a proof without content of a conjecture without content, but it's left as an exercise for the reader.

desktop link: https://xkcd.com/3201
mobile link: https://m.xkcd.com/3201
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3201

title text: Some of the atoms in the molecule are very weakly ...

2026-01-28T20:04:15Z

title text: Some of the atoms in the molecule are very weakly bound.

desktop link: https://xkcd.com/3200
mobile link: https://m.xkcd.com/3200
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3200

title text: 'Ugh, I'm never going to be like spiders. My ...

2026-01-27T00:09:15Z

title text: 'Ugh, I'm never going to be like spiders. My descendants will all just be normal arthropods who mind their own busines and don't do anything weird.' --The ancestor of a bunch of eusocial insects

desktop link: https://xkcd.com/3199
mobile link: https://m.xkcd.com/3199
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3199

title text: 'Oh, and can I borrow 50 sacks of loose flour, a ...

2026-01-24T01:49:15Z

title text: 'Oh, and can I borrow 50 sacks of loose flour, a pile of lithium-ion batteries, a bucket of bleach, and a bucket of vinega--' 'NO!!!!!!'

desktop link: https://xkcd.com/3198
mobile link: https://m.xkcd.com/3198
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3198

title text: Unfortunately, my scheme to trick NASA has now taken ...

2026-01-21T22:44:14Z

title text: Unfortunately, my scheme to trick NASA has now taken over a decade longer than planned and has run way over budget.

desktop link: https://xkcd.com/3197
mobile link: https://m.xkcd.com/3197
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3197

title text: I've had countless nights where the line never ...

2026-01-20T02:29:15Z

title text: I've had countless nights where the line never left the bottom zone of the graph, but the few moments where it's climbed all the way to the top have made up for them all.

desktop link: https://xkcd.com/3196
mobile link: https://m.xkcd.com/3196
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3196

title text: Welcome to the International Space Station ...

2026-01-16T14:49:14Z

title text: Welcome to the International Space Station Exclamation Point!

desktop link: https://xkcd.com/3195
mobile link: https://m.xkcd.com/3195
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3195

title text: Some surfaces may seem difficult to glue. But if you ...

2026-01-14T19:49:13Z

title text: 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.

desktop link: https://xkcd.com/3194
mobile link: https://m.xkcd.com/3194
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3194

title text: I wanted to make the world's fastest yawl, so I ...

2026-01-13T04:49:14Z

title text: I wanted to make the world's fastest yawl, so I made the aft sail bigger, but apparently that means it's not a yawl anymore! It's a real ketch-22.

desktop link: https://xkcd.com/3193
mobile link: https://m.xkcd.com/3193
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3193

title text: We're going to need to modify the surface to ...

2026-01-10T05:14:12Z

title text: We're going to need to modify the surface to mount it on the test stand. Which ocean basin do you like the least?

desktop link: https://xkcd.com/3192
mobile link: https://m.xkcd.com/3192
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3192

title text: It's important to teach yourself to feel ...

2026-01-07T19:44:12Z

title text: It's important to teach yourself to feel responsible for random events, because with great responsibility comes great power. That's what my wise Uncle Ben told me right before he died; he might still be alive today if only I'd said rabbit rabbit that year!

desktop link: https://xkcd.com/3191
mobile link: https://m.xkcd.com/3191
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3191

title text: Some people argue that the tension and compression in ...

2026-01-06T03:09:11Z

title text: Some people argue that the tension and compression in the human skeleton is technically tensegrity, but it's missing the defining characteristic: making people say 'wtf, how is that thing floating?' when they see it.

desktop link: https://xkcd.com/3190
mobile link: https://m.xkcd.com/3190
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3190

title text: They're not generally used for crewed spacecraft ...

2026-01-03T01:34:11Z

title text: They're not generally used for crewed spacecraft because astronauts HATE going around the corners.

desktop link: https://xkcd.com/3189
mobile link: https://m.xkcd.com/3189
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3189

title text: Anyone else watching this Youtube video in 1954? If ...

2025-12-31T22:09:10Z

title text: Anyone else watching this Youtube video in 1954? If so, my last trip definitely messed with the timeline.

desktop link: https://xkcd.com/3188
mobile link: https://m.xkcd.com/3188
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3188

title text: 1,300,000-1,400,000 ft: Ask a crew member to show you ...

2025-12-29T23:34:11Z

title text: 1,300,000-1,400,000 ft: Ask a crew member to show you how to use the ISS food warmer.

desktop link: https://xkcd.com/3187
mobile link: https://m.xkcd.com/3187
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3187

title text: Building Inspectors HATE This One Weird Trick desktop ...

2025-12-26T16:04:10Z

title text: Building Inspectors HATE This One Weird Trick

desktop link: https://xkcd.com/3186
mobile link: https://m.xkcd.com/3186
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3186

title text: Vertebrae Georg desktop link: https://xkcd.com/3185 ...

2025-12-25T01:14:10Z

title text: Vertebrae Georg

desktop link: https://xkcd.com/3185
mobile link: https://m.xkcd.com/3185
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3185

title text: In 1899, people were walking around shouting ...

2025-12-23T04:44:10Z

title text: In 1899, people were walking around shouting '23' at each other and laughing, and confused reporters were writing articles trying to figure out what it meant.

desktop link: https://xkcd.com/3184
mobile link: https://m.xkcd.com/3184
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3184

title text: My goal in life is to be personally responsible for ...

2025-12-20T04:24:09Z

title text: My goal in life is to be personally responsible for at least one sports rule change.

desktop link: https://xkcd.com/3183
mobile link: https://m.xkcd.com/3183
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3183

title text: I'm trying to buy a gravitational lens for my ...

2025-12-17T23:54:09Z

title text: I'm trying to buy a gravitational lens for my camera, but I can't tell if the manufacturers are listing comoving focal length or proper focal length.

desktop link: https://xkcd.com/3182
mobile link: https://m.xkcd.com/3182
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3182

title text: Earth's r_jf is approximately 1.5 light-days, ...

2025-12-16T04:19:08Z

title text: Earth's r_jf is approximately 1.5 light-days, leading to general relativity's successful prediction that all the frogs in the Solar System should be found collected on the surface of the Earth.

desktop link: https://xkcd.com/3181
mobile link: https://m.xkcd.com/3181
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3181

title text: The experimental math department's budget is ...

2025-12-12T23:09:07Z

title text: The experimental math department's budget is under scrutiny for how much they've been spending on trains leaving Chicago at 9:00pm traveling at 45 mph.

desktop link: https://xkcd.com/3180
mobile link: https://m.xkcd.com/3180
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3180

title text: 'That's definitely above the ...

2025-12-11T02:49:03Z

title text: 'That's definitely above the catch-and-release size minimum for planetesimals.' 'I'm going to throw it back anyway.'

desktop link: https://xkcd.com/3179
mobile link: https://m.xkcd.com/3179
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3179

title text: Our models fall apart where the three theories ...

2025-12-09T02:04:02Z

title text: Our models fall apart where the three theories overlap; we're unable to predict what happens when a nanometer-sized squirrel eats a grapefruit with the mass of the sun.

desktop link: https://xkcd.com/3178
mobile link: https://m.xkcd.com/3178
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3178

title text: Luckily, the range is limited by the fact that the ...

2025-12-06T02:14:01Z

title text: Luckily, the range is limited by the fact that the square boundary lines follow great circles.

desktop link: https://xkcd.com/3177
mobile link: https://m.xkcd.com/3177
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3177

title text: Some tires are marketed as 'all-shape tires,' ...

2025-12-04T01:39:01Z

title text: Some tires are marketed as 'all-shape tires,' but if driven in a climate with both inverted catenary falls and triangle falls, they wear out really fast.

desktop link: https://xkcd.com/3176
mobile link: https://m.xkcd.com/3176
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3176

title text: Tired of waiting on hold? Use our website to chat ...

2025-12-01T19:39:01Z

title text: Tired of waiting on hold? Use our website to chat with one of our live agents, who are available to produce words at you 24/7!

desktop link: https://xkcd.com/3175
mobile link: https://m.xkcd.com/3175
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3175

title text: A lot of the highway department's budget goes to ...

2025-11-28T21:14:00Z

title text: A lot of the highway department's budget goes to adjusting the sign whenever the moon passes directly overhead.

desktop link: https://xkcd.com/3174
mobile link: https://m.xkcd.com/3174
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3174

title text: Every weekend I take an ATV out into the desert and ...

2025-11-26T20:34:01Z

title text: Every weekend I take an ATV out into the desert and spend a day tracing a faint "(C) GOOGLE 2009" watermark across the landscape.

desktop link: https://xkcd.com/3173
mobile link: https://m.xkcd.com/3173
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3173

title text: "Want to feel old?" "Yes." desktop ...

2025-11-24T21:19:00Z

title text: "Want to feel old?" "Yes."

desktop link: https://xkcd.com/3172
mobile link: https://m.xkcd.com/3172
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3172

title text: If you drill at the right angle and time things ...

2025-11-21T23:09:00Z

title text: If you drill at the right angle and time things perfectly, your core sample can include a section of a rival team's coring equipment.

desktop link: https://xkcd.com/3171
mobile link: https://m.xkcd.com/3171
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3171

title text: Now, if it were the Canon wiki, it's possible ...

2025-11-20T01:43:59Z

title text: Now, if it were the *Canon* wiki, it's possible to imagine someone with a productivity-related reason for consulting it, but no one's job requires them to read that much about Admiral Daala.

desktop link: https://xkcd.com/3170
mobile link: https://m.xkcd.com/3170
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3170

title text: 'Oh no, the box is drifting out into the ...

2025-11-17T22:58:59Z

title text: 'Oh no, the box is drifting out into the harbor!' 'Yeah, I wouldn't worry about losing it.'

desktop link: https://xkcd.com/3169
mobile link: https://m.xkcd.com/3169
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3169

title text: We're adding some industrial flypaper to minimize ...

2025-11-14T22:08:58Z

title text: We're adding some industrial flypaper to minimize reflection or scattering of customers who might complain.

desktop link: https://xkcd.com/3168
mobile link: https://m.xkcd.com/3168
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3168

title text: 'They really shouldn't let those small cars ...

2025-11-12T19:38:58Z

title text: 'They really shouldn't let those small cars drive in traffic. I worry I'm going to kill someone if I hit one! They should have to drive on the sidewalk, safely out of the way.'

desktop link: https://xkcd.com/3167
mobile link: https://m.xkcd.com/3167
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3167

title text: Are you the annoying spoon or the sleepy spoon? ...

2025-11-11T01:23:59Z

title text: Are you the annoying spoon or the sleepy spoon?

desktop link: https://xkcd.com/3166
mobile link: https://m.xkcd.com/3166
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3166

title text: At least people who make religious predictions of the ...

2025-11-08T02:03:58Z

title text: At least people who make religious predictions of the apocalypse have an answer to the question 'Why didn't you predict any of the other ones that happened recently?'

desktop link: https://xkcd.com/3165
mobile link: https://m.xkcd.com/3165
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3165

title text: The package weighs 7 kg 9 oz. desktop link: ...

2025-11-05T20:53:57Z

title text: The package weighs 7 kg 9 oz.

desktop link: https://xkcd.com/3164
mobile link: https://m.xkcd.com/3164
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3164

title text: The statue should be in the likeness of whatever ...

2025-11-03T23:13:57Z

title text: The statue should be in the likeness of whatever sculptor posted the sculpting tool repair video that was most helpful during the installation of the statue.

desktop link: https://xkcd.com/3163
mobile link: https://m.xkcd.com/3163
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3163

title text: Even geology papers about Heart Mountain are like, ...

2025-11-01T00:13:56Z

title text: Even geology papers about Heart Mountain are like, "Look, we all agree this 'volcanic gas earthquake hovercraft' thing seems like it can't possibly be right, but..."

desktop link: https://xkcd.com/3162
mobile link: https://m.xkcd.com/3162
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3162

title text: Carefully maneuvering the balloon down a mineshaft in ...

2025-10-29T21:23:56Z

title text: Carefully maneuvering the balloon down a mineshaft in an effort to break the OTHER altitude record

desktop link: https://xkcd.com/3161
mobile link: https://m.xkcd.com/3161
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3161

title text: It comes with a certificate of authenticity, which ...

2025-10-27T21:13:56Z

title text: It comes with a certificate of authenticity, which comes with a certificate of authenticity, which comes with a...

desktop link: https://xkcd.com/3160
mobile link: https://m.xkcd.com/3160
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3160

title text: The inflection point was probably in late 1966 or ...

2025-10-24T13:28:55Z

title text: The inflection point was probably in late 1966 or 1967, so when Neil Armstrong flew to space on Gemini 8, plate tectonics was not widely accepted, but when he landed on the Moon three years later it was the mainstream consensus.

desktop link: https://xkcd.com/3159
mobile link: https://m.xkcd.com/3159
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3159

title text: Sharks can occasionally travel short distances ...

2025-10-23T01:33:55Z

title text: Sharks can occasionally travel short distances through air when pursuing prey, but their attenuation coefficient is pretty high.

desktop link: https://xkcd.com/3158
mobile link: https://m.xkcd.com/3158
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3158

title text: Many things about Star Wars were not well planned ...

2025-10-20T21:38:55Z

title text: Many things about Star Wars were not well planned out, but having a 37-year-old in old-age makeup play the Emperor in Return of the Jedi was such an incredible call.

desktop link: https://xkcd.com/3157
mobile link: https://m.xkcd.com/3157
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3157

title text: If you don't know where you are on Earth, the ...

2025-10-17T15:58:54Z

title text: If you don't know where you are on Earth, the angle of satellite dishes can help constrain your latitude. If some of them are pointing straight up, you're probably near the Equator, right under the ring.

desktop link: https://xkcd.com/3156
mobile link: https://m.xkcd.com/3156
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3156

title text: If nothing else, that reasoning definitely overturns ...

2025-10-15T20:13:53Z

title text: If nothing else, that reasoning definitely overturns syllogisms.

desktop link: https://xkcd.com/3155
mobile link: https://m.xkcd.com/3155
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3155

title text: When Galileo dropped two weights from the Leaning ...

2025-10-13T13:28:54Z

title text: When Galileo dropped two weights from the Leaning Tower of Pisa, they put him in the history books. But when I do it, I get 'detained by security' for 'injuring several tourists.'

desktop link: https://xkcd.com/3154
mobile link: https://m.xkcd.com/3154
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3154

title text: Despite a reputation for safety, the temperatures and ...

2025-10-10T20:43:53Z

title text: Despite a reputation for safety, the temperatures and surprisingly high pressures make them even more dangerous than the air kind, but the NTSB refuses to investigate accidents because they insist there is no 'transportation' involved.

desktop link: https://xkcd.com/3153
mobile link: https://m.xkcd.com/3153
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3153

title text: I understand it's hard to do more than 300 feet ...

2025-10-09T00:53:54Z

title text: I understand it's hard to do more than 300 feet on these 90-second rush jobs, but with a smaller ramp I'm worried the gee forces will be too high for me to do any tricks.

desktop link: https://xkcd.com/3152
mobile link: https://m.xkcd.com/3152
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3152

title text: The Nobel Prize in Physiology or Medicine or Home ...

2025-10-07T03:13:55Z

title text: The Nobel Prize in Physiology or Medicine or Home Improvement or DIY

desktop link: https://xkcd.com/3151
mobile link: https://m.xkcd.com/3151
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3151

title text: Progress on getting shipwrecked sailors to adopt ...

2025-10-03T16:58:52Z

title text: Progress on getting shipwrecked sailors to adopt ICMPv6 has been slow.

desktop link: https://xkcd.com/3150
mobile link: https://m.xkcd.com/3150
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3150

title text: "Measure zero times, cut zero times." ...

2025-10-02T00:28:52Z

title text: "Measure zero times, cut zero times." --carpenter who has achieved enlightenment and realized the wood is fine where it is

desktop link: https://xkcd.com/3149
mobile link: https://m.xkcd.com/3149
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3149

title text: I'm trying to share my footage of the full run to ...

2025-09-30T02:58:51Z

title text: I'm trying to share my footage of the full run to prove it's not tool-assisted, but the uploader has problems with video lengths of more than a decade.

desktop link: https://xkcd.com/3148
mobile link: https://m.xkcd.com/3148
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3148

title text: Every downhill walk is a waterslide that might have ...

2025-09-26T18:53:51Z

title text: Every downhill walk is a waterslide that might have been.

desktop link: https://xkcd.com/3147
mobile link: https://m.xkcd.com/3147
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3147

title text: One perk of being born at 0.88c is that your birthday ...

2025-09-24T20:13:50Z

title text: One perk of being born at 0.88c is that your birthday is over two days long.

desktop link: https://xkcd.com/3146
mobile link: https://m.xkcd.com/3146
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3146

title text: Some lava around the piercing site is normal, but ...

2025-09-22T20:23:50Z

title text: Some lava around the piercing site is normal, but keep an eye out for spreading earthquakes and eruptive activity that might indicate rifting.

desktop link: https://xkcd.com/3145
mobile link: https://m.xkcd.com/3145
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3145

title text: People looking for the gaps in our understanding ...

2025-09-19T12:38:50Z

title text: People looking for the gaps in our understanding where the meaning of consciousness or free will might hide often turn to quantum uncertainty or infinite cosmologies, as if we don't have breathtakingly complex emergent phenomena right there in our freezers.

desktop link: https://xkcd.com/3144
mobile link: https://m.xkcd.com/3144
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3144

title text: Although now people will realize three-per-em space ...

2025-09-18T01:28:49Z

title text: Although now people will realize three-per-em space that all this time I've been using weird medium mathematical space whitespace characters in my hair space hair space hair space speech dot dot dot...

desktop link: https://xkcd.com/3143
mobile link: https://m.xkcd.com/3143
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3143

title text: The draw-by-repetition rule does a good job of ...

2025-09-08T21:35:42Z

title text: The draw-by-repetition rule does a good job of keeping players from sliding a tile back and forth repeatedly, but the tiles definitely introduce some weird en passant and castling edge cases.

desktop link: https://xkcd.com/3139
mobile link: https://m.xkcd.com/3139
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3139

title text: A person with two watches is never sure what time it ...

2025-09-06T00:25:41Z

title text: A person with two watches is never sure what time it is, especially if I got them one of the watches.

desktop link: https://xkcd.com/3138
mobile link: https://m.xkcd.com/3138
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3138

title text: Another group of mathematicians is working to put an ...

2025-09-03T21:20:40Z

title text: Another group of mathematicians is working to put an upper bound on the number, although everyone keeps begging them to stop.

desktop link: https://xkcd.com/3137
mobile link: https://m.xkcd.com/3137
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3137

title text: They're up there with coral islands, lightning, ...

2025-08-30T01:20:40Z

title text: They're up there with coral islands, lightning, and caterpillars turning into butterflies.

desktop link: https://xkcd.com/3135
mobile link: https://m.xkcd.com/3135
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3135

title text: Wavefunction collapse is only one interpretation. ...

2025-08-28T01:45:39Z

title text: Wavefunction collapse is only one interpretation. Under some interpretations, graduate students also have souls.

desktop link: https://xkcd.com/3134
mobile link: https://m.xkcd.com/3134
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3134

title text: I tried uploading it to a household appliance porn ...

2025-08-26T04:04:04Z

title text: I tried uploading it to a household appliance porn site I found, but apparently their content is limited to only fans.

(https://xkcd.com/3133)
(https://www.explainxkcd.com/wiki/index.php/3133)

title text: Hey! A bunch of the early Cretaceous fossils on each ...

2025-08-22T16:04:04Z

title text: Hey! A bunch of the early Cretaceous fossils on each coast seem to have been plagiarized, too!

(https://xkcd.com/3132)
(https://www.explainxkcd.com/wiki/index.php/3132)

title text: Someday I hope to find a way to mess up a recipe so ...

2025-08-20T14:39:03Z

title text: Someday I hope to find a way to mess up a recipe so badly that it draws the attention of the International Air Transport Association, the International Mathematical Olympiad, or the NSA.

(https://xkcd.com/3131)
(https://www.explainxkcd.com/wiki/index.php/3131)

title text: I dropped my phone while trying to search, and I ...

2025-08-18T20:24:03Z

title text: I dropped my phone while trying to search, and I tried to unlock it from up here, so can you also search for screen repair places?

(https://xkcd.com/3130)
(https://www.explainxkcd.com/wiki/index.php/3130)

title text: The academic archaeology establishment is suppressing ...

2025-08-15T14:09:03Z

title text: The academic archaeology establishment is suppressing my breakthroughs because of the disruption it would bring to their prepared-core flake-based toolmaking industry.

(https://xkcd.com/3129)
(https://www.explainxkcd.com/wiki/index.php/3129)

title text: Hey, so did you ever finish your video series about ...

2025-08-13T16:04:03Z

title text: Hey, so did you ever finish your video series about Cassie and the caterpillar morph? I loved the first three, but never ... no, sorry, I get it, this isn't the place. Sorry! Sorry.

(https://xkcd.com/3128)
(https://www.explainxkcd.com/wiki/index.php/3128)

(manual upload because the xkcdbot daemon shut down for no ...

2025-08-12T01:57:18Z

(manual upload because the xkcdbot daemon shut down for no reason)

title text: Historians: Contemporaneous documentation of the initial events is often sparse, and in fact people often get testy and uncooperative when we urge better documentation for the historical record.

(https://xkcd.com/3127)
(https://www.explainxkcd.com/wiki/index.php/3127)

title text: You say no human would reply to a forum thread about ...

2025-08-08T19:13:59Z

title text: You say no human would reply to a forum thread about Tom Bombadil by writing and editing hundreds of words of text, complete with formatting, fancy punctuation, and two separate uses of the word 'delve'. Unfortunately for both of us, you are wrong.

(https://xkcd.com/3126)
(https://www.explainxkcd.com/wiki/index.php/3126)

title text: Chemistry grad students have been spotted trying to ...

2025-08-06T21:48:58Z

title text: Chemistry grad students have been spotted trying to lure campus squirrels into laundry hampers in the hope that it sparks inspiration.

(https://xkcd.com/3125)
(https://www.explainxkcd.com/wiki/index.php/3125)

title text: We should have you at the gate in just under two ...

2025-08-04T20:38:58Z

title text: We should have you at the gate in just under two hours--two and a half if we get pulled over.

(https://xkcd.com/3124)
(https://www.explainxkcd.com/wiki/index.php/3124)