How to navigate using the Weather Page 3

The Direction Ducks Land

My thanks to my fellow Fellows at the Royal Institute of Navigation for drawing my attention to some research that slipped past me a few years ago. Hynek Burda, of the Czech University of Life Sciences in Prague, led a team of 11 zoologists in a study of the way…

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Circumzenithal Arcs

My thanks to Simon Cadman for the following generous email and some great images of some sun dogs and the more rarely-spotted, 'upside-down rainbow', also known as a 'circumzenithal arc' or 'Bravais' arc'. Circumzenithal arcs and sun dogs form when sunlight refracts through ice crystals, not rain as with rainbows.…

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Back from Crete

Just back from a natural navigation expedition in Crete. In summary: a sweaty success. More to follow in email newsletter etc.

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