Fish Frenzy at Water Surface – Predator Sign
Early this morning I saw an interesting sign in the water, a clue that fish were trying to defy a predator. At about 6am, I…
Tag: sailing
What is a Katabatic Wind?
Heavier gases sink, lighter gases rise. That is how a hot air balloon works: the warm air expands making it lighter than the surrounding air…
When clouds appear like rocks and towers…
… the Earth’s refreshed by frequent showers. It is so rewarding when weather lore helps us remember a clue. It is doubly satisfying when this…
Full Moons Mean Big and Fast Tides
It’s a full moon today. Full moons mean unusually big, fast and powerful tides over the next few days. You might also enjoy: How to…
The Colour and Shape of Navigation Marks
Most navigators, even inexperienced ones, learn that colours are important when trying to identify navigation marks at sea. And most people also know that there…
The Fish Cliff Clue
When John Pahl and I were sailing around Iceland, we noticed that you could use the puffins to indicate the direction of land very reliably,…
The Secret World of Weather
How to Read Signs in Every Cloud, Breeze, Hill, Street, Plant, Animal, and Dewdrop The weather changes as we walk around a tree or turn…
Clues Above Brighton Pier
Have a good look at the picture above. I took it during a night walk along the Brighton seafront. If I was planning to set…
Transit Lines
My favourite signs always combine simplicity, elegance and practicality. They are often so effective that technology can’t improve on them. Cats’ Paws, the ruffled patterns…