Analemmatic Dial - Napanee, ON - Outdoor Interactive Science Displays on Waymarking.com

"Analemmatic dials are not very common. Human Sun Dial's are a particular kind of horizontal sundial in which the shadow-casting object is vertical, and is moved depending on the date, based on the declination of the sun on a given day. The time is read from the Human Sun Dial by noting where the shadow, cast by the vertical pin, crosses hour points laid out on an ellipse. If the dial on the ground is large enough, the shadow can be cast by a person. This makes it very different from the traditional sundials we often see where the shadow is cast by a triangular shaped wedge. The analemmatic sundial is perfect as a piece of large mathematical sculpture." (visit link)

Scientific Principle(s) being demonstrated: This analemmatic sundial demonstrates how the position and angle of the sun changes with both the time of day and time of the year. Briefly explain if the experiment was effective for you. Could it have been better?: Experiment was perfect for all three in our family. Loved having my daughter along to show her how the Analemmatic Dial worked. When is the apparatus/experiment available to the public: 24/7/365

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Date Logged Log   09/05/2022 Saxo-fun visited it 11/10/2021 petendot visited it

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