There is a recurring result in materials science that is worth stating as a general principle: arrangement frequently matters more than composition.
The lining of certain shells is the standard…
There is a small category of objects that are fully explained by one diagram, and this is one of them.
A vacuum flask is a container inside another container, with…
There is a common assumption about early steam power that inverts the actual mechanism, and correcting it makes the whole development sequence comprehensible.
The assumption is that steam pushes. High-pressure…
There is a piece of physics that almost everybody half-knows and that is more interesting stated precisely.
The half-known version is that things fall faster and faster. That is true…
Two materials are held apart in a state where one wants to give up electrons and the other wants to take them, and the separation is the entire trick. Here…
The film is not a solid thing. It is a layer of water held between two surfaces, and everything a bubble does - its shape, its colours, its lifespan and…