Filters or sensors ?
We ponder a photographer’s desire for a monochrome camera.
explanation
Four elements, four humors
Before the revolution
We conclude that it can be useful to teach something that is actually wrong.
Degrees of difficulty
Impossible, inevitable and in between
Some actions in science fiction are much more difficult than others.
An audio culture
A video culture?
A small change
Starting from here
Multiple-choice History
Making it simple
Our tutor ponders the trade-off between accuracy and simplicity in teaching.
Back to sea
A different world
Our navigator points out how the world of the sailor has become entirely disconnected from that of the rest of us.
Back to C
The difference between languages
We are struck by the great range of things included in the term “software.”