The useful way to read any station is to work out which of two plans it is, then look at how the roof is held up. Those two facts explain…
The useful habit is to read a map as an argument rather than as a photograph. Somebody decided all of this, and knowing what they decided tells you what the…
The whole subject is fluid control. Too little and nothing appears; too much and it blots; and the difference between the two is a matter of fractions of a drop.…
A built viewpoint is an argument about what matters in a landscape. Somebody chose the position, the height and the direction, and everybody who stands there afterwards sees what they…
The wheel is frequently described as the great invention. The wheel-and-axle pair is the invention; a disc that rolls is obvious, and attaching it usefully is not. Here are twelve…
The useful way to think about paint is as a delivery system. The colour cannot stick to anything by itself, so the entire technology is about getting it onto a…