Calendars, clocks and sundials


This workshop focuses on the underlying mathematics of calendars and sundials. Participants are shown how to make a perpetual calendar and a nocturnal or star clock , which is based on the 24-hour rotation of the southern cross constellation. Both calendar and clock are created without algorithms but require an understanding of first principles. The measurement of time theme continues with the construction of a simple equatorial sundial. Participants learn how to modify a sundial to work at any latitude or longitude within a time zone. Some other solar instruments are demonstrated as an interesting way of introducing celestial geometry to middle school students.

Tim Byrne

Session Code Session Date Session Start Session Finish Session Location Places Remaining


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