Constant Bearing, Constant Danger
What does “constant bearing, constant danger” mean? And why does it sometimes lead to a very dangerous problem? This expression is a neat abbreviation of…
Tag: flight
EasyJet Calms Orographic Storms
My thanks to all the team at the Mosto Festival in Italy for organising such a fun event based around the theme of water. I…
Why Do Animals Stop Moving and Freeze?
This morning I was walking into wind and surprised a deer. After a couple of quick hops away it then froze and stood motionless. This…
Analysing Deer Behaviour: Flight, Refuge and Jink
I was looking over one of the local hills from the cover of some undergrowth, when I spooked a herd of fallow deer. They were…
Fallow Deer Flight and Refuge Behaviour
My latest book, Wild Signs and Star Paths, explains how it is possible to predict an animal’s next move. By following a simple stepping-stone approach,…
What is a Great Circle?
When I first learned about great circles, I found them to be one of the most eye-opening, head-scratching and strangely beautiful concepts in navigation. I…