The useful frame is extraction. You are dissolving specific substances out of solid material into water, and everything about the result depends on which substances come out and what happens…
The useful question about any symmetrical thing is not why somebody made it that way but what process would produce that arrangement without anybody deciding. Here are sixteen answers.
1.…
The governing fact is volatility. An aroma compound has to leave the food and travel through air to reach you, and everything below is about what makes that more or…
Source: Wikipedia
There is a category of historical decision that turns out correct for reasons nobody involved understood, and this is the clearest example in the history of public works.
A…
Source: Wikipedia
Technologies are usually lost for identifiable reasons. A market disappears, a cheaper substitute arrives, a war interrupts a supply chain, or the last people who knew a process die…
Everybody who has been somewhere completely dark reports the same surprise: the sky is bright.
Not bright like daylight, but visibly not black. There is enough light to see the…