Source: Wikipedia
There is an intuition about layered rock that is almost universal and substantially wrong.
The intuition is that layers accumulate steadily, like pages in a book, so that a…
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…
Everything about a lake follows from how its basin was made. Ice, movement of the crust, volcanic collapse, dissolving rock and a river changing its mind all produce lakes, and…
The question to ask at any bridge is where the force goes. Straight down, outward against the banks, up into a tower, or along a chain of triangles - and…
There is a common assumption that a hot place is hot and a cold place is cold, and that a location is one or the other.
Deserts break that assumption…
The useful question at any reservoir is why the wall is where it is, because that position was chosen for reasons of geology and geometry that determined everything else. Here…