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  1. Sundial - Wikipedia

    The Tower of the Winds in Athens included both a sundial and a water clock for telling time. A canonical sundial is one that indicates the canonical hours of liturgical acts, and these were …

  2. Sundial | Definition, History, Types, & Facts | Britannica

    Dec 22, 2025 · Sundial, the earliest type of timekeeping device, which indicates the time of day by the position of the shadow of some object exposed to the sun’s rays. As the day progresses, …

  3. Sundial S - NASS

    Volunteers from the Analemma Society and NASS demonstrated a number of sundial types and provided paper sundial cut-outs that were enjoyed by children, students, parents and teachers …

  4. EAAE - How does a sundial work?

    A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the Sun casts a shadow from the gnomon, which is a thin rod straight …

  5. Sundial: Meaning, Working Principle, History & Types Explained

    Learn what a sundial is, how it works, its invention, types, and uses. Discover easy diagrams and key facts for exams and projects.

  6. The British Sundial Society: How Sundials Work

    This set of pages explains, with diagrams, how a sundial works. It begins with the simplest (equatorial) dial where the shadow of a stick (the gnomon) falls on hour lines every 15 degrees …

  7. How a Sundial Works (And Why You Need One in Your Backyard)

    Feb 19, 2024 · Building a sundial in your backyard may be an enjoyable and instructive hobby. Here is a tutorial to assist you in creating your own makeshift sundial:

  8. The Invention and Evolution of Sundials - The Horology Lab

    Nov 2, 2024 · A sundial operates based on the Earth’s rotation and the sun’s movement across the sky. The most essential component of a sundial is the gnomon, a stick or triangular object …

  9. Sundials: Where Time Began - Farmers' Almanac

    Nov 8, 2023 · A sundial is one of the most common decorative ornaments seen in flower gardens today, providing quiet, aesthetic beauty as it peeks out from the rose bushes and hydrangeas. …

  10. How to Read a Sundial: 11 Steps (with Pictures) - wikiHow

    Mar 10, 2025 · Sundials have been used to measure time, based on the Sun, for thousands of years. This simple device can be made up of nothing but a flat dial and a gnomon (the …