There is a widespread assumption about roads that is understandable and backwards.
The assumption is that the hard black surface is the road, and that what lies beneath it is…
The whole subject reduces to one comparison: which rock resisted and which did not. Everything projecting is what held out, everything indented is what did not, and every feature between…
The organism does one thing: it consumes sugars and produces gas and alcohol. Bread keeps the gas and loses the alcohol; brewing keeps the alcohol and loses the gas. Everything…
The confusion is almost never about the food. It is about the sequence, the signals and the timing, all of which are learned by everybody at home and assumed to…
A moving bicycle with nobody on it can stay upright for a considerable distance, correcting itself when pushed. Working out why took far longer than anybody expected, and the popular…
Source: Wikipedia
Most people spent more consecutive hours in one classroom than in any room they have occupied since, which is why the physical details survive so completely. Here are fourteen.…