Source: Wikipedia
There is a small piece of rural engineering that walkers cross constantly and rarely examine.
The problem it solves is truly awkward. A boundary must be continuous to hold…
There is a habit of describing sea organisms using land vocabulary, and it causes a persistent misunderstanding about seaweed.
The words used — root, stem, leaf — describe a land…
Every terraced landscape is an enormous piece of engineering built by hand over generations, and every element of it answers a specific problem with a slope. Here are seventeen.
1.…
There is a contradiction at the centre of making charcoal that explains everything about how it was done.
The wood has to be heated to a high temperature, and the…
There is an idea about sailing that seems obviously true and is only half the story.
The idea is that a sail is a bag that catches the wind and…
There is a common assumption about layered rocks that slate steadily breaks.
The assumption is that a rock which splits into sheets does so along the layers in which it…