What is Radiation Fog?
We are used to feeling the warmth from the sun on our faces. Heat radiates millions of miles across space, through our atmosphere to warm…
Explore the Books
Category: Sun
A Merry Tough Christmas Navigation Riddle
This time of year poses some logistical challenges for Santa and his team. Can you help him? Few people realise that in order to be…
Urban Picture Puzzle
This picture was taken near the middle of the day in London. What direction are we looking? Clue: look for the circle and the square.…
Using A Tree Stump as a Compass on Hills
Regular readers will be familiar with the idea that a tree stump can be used as a compass. In trees exposed to plenty of sun,…
The Nature Instinct: New Podcast Interview
This is probably the best interview I will ever do about my latest book (The Nature Instinct in US / Wild Signs and Star Paths in UK). Brett…
The Darkest Two Months of the Year
The sun is well over the southern hemisphere now. Sunrises and sunsets are well south too. In the northern hemisphere we have entered the darkest…
The Mongolian Ger Compass
Mongolian traditional homes are structures like yurts and are known as ‘gers’. The doors of gers face south. This is a useful compass or GPS…
The Avenue Effect in Trees
My thanks to Alun for sending in this photo of autumn colour near the Kitano Tenman-Gu Shrine in Kyoto. And the following question: “I saw…
How to Navigate with Rainbows
Many people believe that a thing must be either beautiful or practical. But nature brims with examples that manage both. Rainbows are pretty, but they…