Ordinary lightning is well understood. It is a fast, enormous electrical discharge, it lasts a fraction of a second, it leaves physical traces, and it can be measured, photographed, and…
Ask an adult for their earliest memory and you will usually get something from around the age of three or four: a first day at preschool, the arrival of a…
Source: Wikipedia
The ancient city of Cyrene sat on the North African coast, in what is now Libya. Founded by Greek settlers in the seventh century BC, it became one of…
Most claims about remote places come with an asterisk. The remotest inhabited island still has a harbour and a supply ship. The remotest town has a road, or at least…
The number of continents is one of the first facts most people are taught about the world, and one of the least questioned. Seven: Africa, Antarctica, Asia, Australia, Europe, North…
Picture the two places side by side. On one side of the Atlantic, the Sahara: the largest hot desert on the planet, stretching across the northern third of Africa, defined…