252 | Behind the Blood: How the analysis of bloodstain patterns works
A video explaining how experts analyze blood splatter patterns at crime scenes
202 | Bus Backup: How do buses get off their schedules
An explanation of the process of “bus bunching,” when public buses end up close together on their routes
197 | Sent into Space: What’s on the Golden Record
Here is a list of the contents of the Golden Record, which was sent along on the Voyager program
190 | Not Without Nought: The human origins of zero
An exploration of invention/discovery/formation of zero
123 | Bring It Around Town: The flight paths of the Apollo missions
An overview of why the Apollo missions’ flight paths were structured like figure eights
83 | Logic and Wit: The Origins of Familiar Puzzles
How do you get the wolf across the river without the goats eating the cabbage? The History Extra podcast gives some insight into the origins of popular puzzles.