Source: Wikipedia
There is a difference between a chronicle and a survey, and it is the difference between knowing what somebody thought was important and knowing what was there.
Chronicles record…
Source: Wikipedia
There is a particular category of historical event that is easier to document than to explain, and this is the largest example available.
For several centuries before 1200 BC,…
There is an assumption embedded in ordinary language about growing old, and it is worth examining because it turns out to be misleading.
The assumption is that ageing is what…
The number of signs a writing system requires is not a technical detail. It determines who can be literate.
A system with several thousand signs can be learned, and learning…
Most complicated biological structures are alive. They are supplied with blood, monitored by nerves, maintained continuously and repaired when damaged.
A feather is none of those things. Once grown, it…
The single idea that makes all of this make sense is that cold is not a thing being added but heat being taken away and put somewhere else. Everything below…