Sign up

xkcd.com

Not verified No WebSub updates No webmention support Valid

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

Public lists
Featured
Fetched

xkcd.com Valid
Text

Omniroll

It seems wrong that Fruit by the Foot is only sold by weight or by number of rolls.

xkcd.com Valid
Text

Water Damage

Your homeowner's insurance might cover it, but be sure to check the subductible.

xkcd.com Valid
Text

Tall Structures

Briefly set a new record for tallest human-made structure by getting my knit sweater snagged on the skydiving plane door as I jumped and not noticing until I'd landed.

xkcd.com Valid
Text

Excusing Yourself

The most awkward part is when you have to pause to put on your shoes before you continue rolling out the door.

xkcd.com Valid
Text

RNA

2040s: RNA formed the basis for life each of the five known times it arose on the early Earth.

xkcd.com Valid
Text

Giants

I can't get over the suspicion that all those viral pictures are photoshopped and 'Flemish' belongs in the lower right circle.

xkcd.com Valid
Text

Scream Cipher

AAAAAA A ÃA̧AȂA̦ ǍÅÂÃĀÁȂ AAAAAAA!

xkcd.com Valid
Text

KM3NeT

Unfortunately, KM3NeT led to the discovery of the Pauli anglerfish, which emits Cherenkov radiation to prey on neutrino researchers.

xkcd.com Valid
Text

Archive Request

They just want researchers in the enclosure to feel enriched and stimulated. ('The Enclosure' is what archivists call the shadowy world outside their archives in which so many people are trapped.)

xkcd.com Valid
Text

Hardwood

They may technically have been softwoods at some point, but they definitely aren't now.

xkcd.com Valid
Text

Atom

What's weirder is that muons turned out to be INCREDIBLY cute.

xkcd.com Valid
Text

Incoming Asteroid

The bottom ones are also potentially bad news for any other planets in our solar system that have been counting on Earth having a stable orbit.

xkcd.com Valid
Text

Suspension Bridge

As a first step, they can put in a secondary deck, to help drivers try it out and find out how fun the jumps are. After a while no one will use the old flat deck and they can remove it.

xkcd.com Valid
Text

Rotary Tool

It was great until my thumb slipped and I accidentally launched my telescope into the air at Mach 8.

xkcd.com Valid
Text

Stromatolites

If only my ancestors had been fortunate enough to marry into the branch of the bacteria family that could photosynthesize, like all my little green cousins here.

xkcd.com Valid
Text

AlphaMove

It struggles a little with complex positions, like when there are an even number of moves and it has to round down, but when run against itself it's capable of finding some novelties. At one point I saw six knights on the board at once; Stockfish rarely exceeds four.

xkcd.com Valid
Text

Humidifier Review

They should add a little sticker that certifies that the humidifier supports water conservation, but in the sense of energy conservation or momentum conservation.

xkcd.com Valid
Text

Muons

Update: I've been banned from the physics department for the way I pronounce "Doppler effect."

xkcd.com Valid
Text

T. Rex Evolution

Unfortunately, body size and bite force continue to increase.

xkcd.com Valid
Text

Unit Circle

They're continuing to search for a square with the same area as the circle, as efforts to construct one have run into difficulties.

xkcd.com Valid
Text

Chemical Formulas

Can you pass the nackle?

xkcd.com Valid
Text

Human Altitude

I wonder what surviving human held the record before balloons (excluding edge cases like jumping gaps on a mountain bridge). Probably it was someone falling from a cliff into snow or water, but maybe it involved something weird like a gunpowder explosion or volcano.

xkcd.com Valid
Text

Uncanceled Units

Speed limit c arcminutes^2 per steradian

xkcd.com Valid
Text

Radon

A good ²³⁸Umbrella policy should cover it.

xkcd.com Valid
Text

Chess Zoo

The zoo takes special care to keep kings separated from opposite-color pieces as part of their conservation program to prevent mating in captivity.

xkcd.com Valid
Text

Trimix

You don't want the nitrogen percentage to be too high or you run the risk of eutrophication.

xkcd.com Valid
Text

Features of Adulthood

I don't dig pit traps and cover them with sticks and a thin layer of leaves nearly as much as I expected; I find a chance to do it barely once a month.

xkcd.com Valid
Text

Origami Black Hole

You may notice the first half of these instructions are similar to the instructions for a working nuclear fusion device. After the first few dozen steps, be sure to press down firmly and fold quickly to overcome fusion pressure.

xkcd.com Valid
Text

Skew-T Log-P

The most important quantity for meteorologists is of course the product of latent pressure and temperostrophic enthalpy, though 'how nice the weather is' is a close second.

xkcd.com Valid
Text

Time Capsule Instructions

Inside is a third box, labeled DO NOT OPEN UNLESS YOU ARE IN THE TIME ZONE WHERE YOU OPENED BOTH PREVIOUS BOXES.