Snake-in-the-Box Problem

XKCD 6 August

Grounded

XKCD 4 August

Canon

XKCD 1 August

Bad Map Projection: Interrupted Spheres

XKCD 30 July

Kite Incident

XKCD 28 July

Geologic Periods

XKCD 25 July

Flettner Rotor

XKCD 23 July, 2025

iNaturalist Animals and Plants

XKCD 21 July, 2025

Replication Crisis

XKCD 18 July, 2025