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

Allow Captcha 22 Jan 2021, 5:00 am

To prove you're human, please click all the number pairs that appear together in your Social Security number.

Solar System Compression Artifacts 20 Jan 2021, 5:00 am

Most of our universe consists of dark matter rendered completely undetectable by our spacetime codec's dynamic range issues.

Pulsar Analogy 18 Jan 2021, 5:00 am

The #2 cause of astronomer hand injuries is trying to do vector math when the second axis points off to the right.

1/100,000th Scale World 15 Jan 2021, 5:00 am

The floor should be slightly curved, but we haven't figured out artificial gravity yet, so for now we just added a trace intoxicating gas to the air that messes with your inner ear and gives you a sense that the ground is tilting away from you.

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