In this space information on the sundials which I know of or have seen in person will be posted. 說明一些日晷的基本原理。介紹一些我見過的日晷。 希望大家對日晷有更正確的認識,都能製作正確的日晷。 General principles and examples of sundials will be given here with the hope that sundials be read or made correctly.

2009年4月19日 星期日

ZhangHua BaGuaShan horizontal sundial

中文讀者請至http://blog.xuite.net/nycl.chiu/blog/22542859


Last winter solstice my wife and I went to ZhangHua BaGuaShan scenery park to see a new horizontal sundial, but failed because the service persons gave us a direction which led us to an analemmatic dial in another park service center in NanTou. After we went home, we realized that the horizontal dial should be in the natural park which is at the entrance to the scenery park, the big Budha statue is just across the street.


The position of the dial is at 120.55ºE, 24.08ºN. The dial was made around the year of 2000, probably designed by 陳乃升and 彭維冠. It is a beautiful one. See Fig. 1. The finger point of the child up high on the seesaw is the nodus. Only three calendar lines were drawn. See Fig. 2. I checked the time it showed and it was accurate. The only thing I can suggest is that if there is an EoT table around it will be much better .








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我喜歡金剛經和維摩詰經。希望大家願意對我多指導。從清大化學系退休以後又對日晷生了興趣。很願意將我所知的日晷與你分享。