The HuLin middle high school in HsinChu city, Taiwan invited me to give a speech on sundial on the 9th of April. I prepared a compound dial, vertical plus vertical azimuth, model and hand out on which the layout and the instruction were given so that each student could make the same one for themselves after.
The design of the sundial faces is displayed in the following photos. One gnomon plate serves for two dials: the horizontal edge for the vertical azimuth dial and the slope edge for the normal vertical dial. It reads the standard time.
發表文章
