Saturday's mystery object

The Winter Briefings continued yesterday with an introduction to Meteorology, well attended by members and once more by visitors from the Upward Bound Trust, Haddenham. Since I was the one giving the briefing I can't really give myself a review, but those attending seemed to enjoy the morning. No prizes for working out what the visual aid below was demonstrating.

Hint: the screw is the North Pole*

And if you really want to learn about weather you could do a lot worse than do the Open University's short online course Come Rain or Shine run by the University of Reading. It lasts 3 weeks, 3 hours a week, and you can study when and where you like.

Don't miss next week's talk on XC skills development by Jim White.

*Coriolis effect