Finding Land with Help from the Birds
“It was our first and only experience in 50 years of cruising of navigating by gannet!” My thanks to Christopher for this lovely email and…
Tag: visibility
Morning or Afternoon in Lyme Regis?
I recently took this photo in Lyme Regis, Dorset, on the south coast of England. But what time of day was the picture taken, morning…
Why is visibility so good in the mountains?
Many visitors to cold mountains are struck by the amazing visibility. The visibility is so good that it can trick the brain into thinking things…
Sounds Make a Map
A Guide to Exploring Soundscapes Sounds make a map. Here is an easy exercise to help you hone your understanding of sound maps. It is…
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…
How to Forecast Weather using Twinkling Stars
Rare is the outdoorsperson who is not happy to discuss weather omens – even if it is only to pour scorn on some theory about…
Navigation on Amundsen’s South Pole Expedition
There was an interesting article in Navigation News recently, The Long Journey Home, which looked at Amundsen’s navigation techniques on his South Pole expedition. The…
Sensing Lots When We Can See Little
Could this photograph of distant trees be the worst one I have taken this year? Maybe not. When the fog descends there is a great…
Words by the Water Festival
I have just returned from a wonderful couple of days in the Lake District. I was at the ‘Words by the Water’ literary festival in…
A Tale of Two Skies
These two photographs were taken this morning, within a few seconds of each other and from exactly the same spot. In the book I touch…
Obama Furious with Brits after SatNav Embarrassment
President Obama was visibly furious with his British escort team after his secure cavalcade accidentally drove into the tiny Devon village of Clovelly. The armour-plated…
One person’s Mist…
When sorting some photos last night this picture – taken a few weeks ago on a very cold morning in Chichester harbour – came close…