There is a question that sounds naive and turns out to open a real research problem: does everybody divide colours up the same way?
The physical answer is that the…
There is a small category of technologies where the modern industrial version does exactly what the original did, only faster, and paper is the clearest example.
Most processes have been…
There is an assumption embedded in how nervous systems are usually described, and it comes from studying animals built like us.
The assumption is that a nervous system has a…
There is a class of behaviour that everybody performs, everybody recognises, nobody controls and nobody can explain, and yawning is the most conspicuous member of it.
It occurs in essentially…
The useful question on any coastal path is why the route exists at all, because walking was rarely the reason. Somebody needed to get along this coast, and the path…
The test is simple and nobody applies it at the time: which of these will still mean something when the trip is a decade old. It is rarely the famous…