How the metre was decided
A unit of length was fixed by a survey that turned out to be slightly wrong, and the error is still in the number. What...
Category: History & Culture
Understanding
doesn't have to be
locked inside disciplines or jargon.
The colour that had to be manufactured
Some pigments were rare enough to change what painters could depict. A short account of how supply shaped subject matter.
Why the keyboard is arranged the way it is
The standard explanation is a story about jamming type bars. The record is more crowded than that, and less tidy.