Avalanche Warning Signs
In some areas niche expertise is vital, literally. The signs that warn of avalanches can be life-saving. Nik Huggins spoke to Alan Halewood (pictured) for…
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Tag: weather
Why is the Horizon White?
Have you noticed how the horizon is white, even on a day when the sky is a perfect blue and there isn’t a cloud in…
What are Supernumerary Rainbows?
Supernumerary rainbows are faint bow lines that appear just inside the main rainbow. Look at the rainbow above and you may just be able to…
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…
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,…
Birds and Weather Signs
Perching birds usually face into any breeze. It stops their feathers getting ruffled, but more importantly allows them to take off quickly into wind. So…
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…