The hard part of a clock was never the gears. It was finding something that does the same thing over and over at exactly the same rate, and then extracting…
Almost everything about how a book feels - whether it stays open, how it turns, how heavy it is for its size - was decided during manufacture rather than design.…
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…
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…
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…