Sundial - Wikipedia
Learn about sundials, devices that tell the time of day by the Sun's position in the sky. Find out how they work, what types exist, and how to adjust them for different locations and seasons.
Sundial | Definition, History, Types, & Facts | Britannica
5 days ago · Learn about the sundial, the earliest timekeeping device that uses the sun's shadow to indicate the time of day. Explore the history, types, and features of sundials from ancient to modern times.
Make Your Own Sundial - NASA
May 25, 2023 · Download and print a template to make a paper sundial and tell the time of day by using the Sun.
How Does a Sundial Work? | Sciencing
Sep 7, 2019 · Learn how to use the sun's shadow to tell time with a sundial, a simple device that has been around for thousands of years. Explore the basics of sundial parts, geometry, and astronomy, and how to build your own sundial.
How do sundials work? - Yale Scientific Magazine
Learn how sundials use the sun's position and the earth's tilt to measure time. Find out how sundials are adjusted for different locations and seasons, and why a simple stick in the ground is not enough.
Sundial Construction
Clem Rutter has created a graphical set of instructions to make horizontal sundials taken from the challenge of Fred Sawyer of the North American Sundial Society to find how many different ways can you graphically lay out the lines of a sundial.
(2a) The Sundial - NASA
Learn how to construct a simple sundial from folded paper or cardboard and use it to tell time. Find out how the angle of the gnomon, the latitude, and the season affect the accuracy of the sundial.
How does a sundial work? - EAAE
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 edge, onto a flat surface marked with lines indicating the hours of the day.
Sundial S
Sundials.org is a website dedicated to sundials and related topics, such as ancient and historic sundials, solar alignments, digital and virtual sundials, and STEM education. Find out the latest news on sundials, events, projects, and discoveries from around the world.
Short history of sundials - EAAE
Learn how sundials were used by ancient civilizations to measure time and track the seasons. Discover the evolution of sundial design and construction from Babylonians and Egyptians to Greeks and Romans, and beyond.