There is a useful test for whether an ability is special: look at what the nearest relatives can do.
For most human capabilities, the answer is that they do something…
Maya Linton
There is a common experience in a large domed building, which is standing underneath and being unable to work out what is holding it up.
That reaction is appropriate. A…
There is a question about animal communication that has been argued for a long time, and alarm calls are where the evidence is strongest.
The question is whether animal signals…
Nothing here concerns documents or requirements, which differ entirely by nationality and route and belong with official sources. This is about how the day works, which nobody tells you and…
Every sound in a room reaches you twice - directly, and then repeatedly as reflections from every surface. What a room sounds like is almost entirely a question of how…
The whole subject is pressure rather than force. The same push applied through a smaller area produces a higher pressure, and a cutting edge exists to make that area as…