Most complicated biological structures are alive. They are supplied with blood, monitored by nerves, maintained continuously and repaired when damaged.
A feather is none of those things. Once grown, it…
The organising fact is that rice is not one ingredient. Varieties differ in starch composition in ways that make them truly unsuitable for each other dishes, and almost every rice…
The single idea that makes all of this make sense is that cold is not a thing being added but heat being taken away and put somewhere else. Everything below…
The structural fact behind all of this is that fish do not support their own weight - water does it for them - so the muscle never needed the tough…
There is a category of human variation that is essentially invisible, because it concerns something nobody can observe in anybody else and nobody has reason to compare.
Ask two people…
Most descriptions of the ocean concern its surface, which is understandable, since that is the part anybody sees.
The surface is a thin film on top of something much larger.…