• Home
  • Health
    • Anatomy and Physiology
    • Common Ailments
    • Complementary Medicine
    • Foods
    • For Seniors
    • Herbs
    • Microbes
    • Nutrients
    • Nutrition
    • Therapeutic Essential Oils
  • Science
    • Ancient Astronomy
    • Botany
    • Chemistry
    • Earth Sciences
    • Ecology
    • Mathematics
    • Zoology
  • Society
    • Business
    • Education
    • Government
  • Culture
    • Arts
    • Literature
    • Religion
    • Travel
  • Our Books
  • Contact Us


Home › Science › Astronomy › Ancient Astronomy › Greek and Roman Sundials

Greek and Roman Sundials

These dials show the hour of the day and the day of the year. On the dial is a gnomon that casts a shadow when the sun is shining. Where the shadow falls determines the reading.

Three concentric lines curving across the face of the sundial mark the path of the sun. The upper curve is for the winter solstice; the middle one, for the two equinoxes; and the lower one, for the summer solstice. A central vertical line below the gnomon marks the meridian, or noon. Radiating lines on either side mark the hours.




Search


Follow Us

Innvista

Google Translate

Nature’s Pharmacy





Copyright 2020 | All rights reserved | Innvista.com