Date: Wednesday, 3rd May
Time: 7:30 pm
Venue: Space Place (formerly Carter Observatory)
The analemma, dials, and digits: some unusual combinations, or Clocks of the Really Long Now. – Duncan Hall
Duncan will demonstrate:
- The main aspects of the natural phenomena that power sundials
- Various types of solar-powered timepieces, and
- A digital clock with a display that uses shadows cast by a mini-gnomon
Duncan Hall is a founding member of WAS. Having previously attended the Wellington RASNZ meetings, he signed up as a member of WAS when it was formed in 1974. He thinks that was the year☺ At various times Duncan has been WAS President, Vice-President, Observatory Director, Council member, and ordinary member. He is currently a Trustee of the Gifford Observatory Trust. He was a co-Director of the Gifford Observatory in 1974 and 1975 while at Wellington College.
Duncan’s had a long-term interest in solar-powered, low-powered, and no-powered timepieces.