The intuitive picture is that an infection generates heat, the way a fire in a room raises the room's temperature. It does not work like that. The heat is produced…
Maya Linton
Source: Wikipedia
The list of five senses is about two and a half thousand years old and it was never complete. The one left out is the one you are using…
A traffic light looks like the simplest control system in existence: three lamps, one at a time, in a fixed order. Almost everything about it is a compromise between constraints…
Source: Wikipedia
Most insects live fast. A mayfly is famous for having a day. Periodical cicadas run the opposite strategy to an extreme that has no real parallel: nearly two decades…
A Turtle’s Shell Is Its Own Ribcage and Spine Fused Into a Box, Which Is Why It Cannot Ever Leave It
Almost every popular depiction of a turtle gets this wrong in the same way, treating the shell as a portable house. The reality is stranger, because building a box out…
Usually the oldest ground in the village, and it keeps records. Here are seventeen.
1. The Ground Is Higher Than the Street
Centuries of burial add material rather than remove…