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…
The fundamental constraint is that ink is either present or absent. Everything printers have done for a century and a half is a way of simulating tones that the process…
The whole subject rests on a single exchange: turn something slower and you turn it harder, in precise proportion. Nothing is gained and nothing is free. Here are fourteen consequences.…
There is a useful way of framing biological questions that makes familiar things strange, and sleep is the clearest case.
The framing is to ask what a trait costs, and…
Source: Wikipedia
There is a systematic bias in what the past leaves behind, and it favours hard things.
Bone, shell, wood and teeth survive burial. Skin, muscle, hair, feathers, membranes and…
There is a problem in measurement that comes up whenever something matters and cannot be instrumented reliably.
The problem is that a quantity may be important, variable and consequential while…