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…
There is a common assumption that sealing a letter was about privacy, and it misses what the object was for.
A seal provides no privacy whatsoever. Anybody determined to read…
There is a description of this process that everybody learns and that understates it substantially.
The description is that a tadpole grows legs, loses its tail and becomes a frog…
Prints deteriorate through several separate processes, some driven by light, some by chemistry and some by whatever they were stored in. Here are fifteen.
1. Colour Prints Are Made of…
Every surface in a home collects the same grey film, and it is a record of everything that has been shed, tracked in or blown through recently. Here are fifteen…