Spider Sundial
This exhibit is not accessible during the winter months.
Swiss Timing once with a Swiss flag: The shadow of a flagpole as a time pointer.
This spider's web on the ground seems very confusing, but it soon becomes clear: Wow, the true local time can be determined with the shadow of a single flagpole. The pole does not have to (and cannot) be moved, yet it is possible to read the time at any date. Simply follow the date line in a circle up to the cast shadow and read off the time with the help of the curved coloured lines. The picture was taken around 1 July - but at what time? Find out!
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