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xkcd.com

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xkcd.com: A webcomic of romance and math humor.

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Grammar

Communication is one of the most popular ways to transmit information, ahead of rivals such as

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Day Counter

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

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Creation

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

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Home Solar

"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."

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Satellite Pollution

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

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Centimeter Wavelengths

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

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Inflation Timeline

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

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Star Formation

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!!!

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Landscape Features

'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

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Rotational Gravity

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.

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Planets and Bright Stars

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.

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Subduction Retrieval

Aww, the oceanic crust and the continental crust are getting married!

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Home Remedies

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

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Bazookasaurus

In contrast to the deep booming sound associated with the cannon in pop culture depictions, recent studies show it actually made more of a 'toot toot!' noise.

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Solar Warning

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

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Electric Vehicles

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

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Dental Formulas

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

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Little Red Dots

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

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Amperage

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

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Eliminating the Impossible

'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.

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Plums

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.

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SNEWS

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

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Bad Map Projection: Zero Declination

'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.

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Installation

Do YOU remember the skylight being this big?

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Carbon Dating

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

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Dinosaurs And Non-Dinosaurs

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

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Binary Star

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

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Groundhog Day Meaning

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.

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Proof Without Content

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

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Chemical Formula

Some of the atoms in the molecule are very weakly bound.