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…
There is a tendency to think of agricultural history as a matter of which crops were grown, and the tools receive far less attention than the plants.
That gets the…
Source: Wikipedia
There is a class of invention that is invisible because it is too small to notice, and fastenings are the clearest example on any person's body right now.
The…
There is a fact about the past that is difficult to hold onto because it contradicts something we do daily without thinking.
For most of human history, almost nobody had…
The conversion of sound to signal was solved early and has changed comparatively little in principle. Connecting any telephone to any other took a century of engineering. Here are fourteen…
There is a small category of technologies where the modern industrial version does exactly what the original did, only faster, and paper is the clearest example.
Most processes have been…