gnomonics
Sign in to saveGnomonics (from the ancient Greek word γνώμων, , meaning 'interpreter, discerner') is the study of the design, construction and use of sundials.
~5 min read
Encyclopedic overview
10 sectionsContents
- Analytical gnomonics
- Coordinate system transforms - Change of bases
- Expression as transformation matrices
- Model of the apparent movement of the Sun
- Projection of the shadow of a vertical gnomon
- Inclined and declined sundial
- Other uses
- References
- Sources
- External links
Gnomonics (from the ancient Greek word γνώμων, , meaning 'interpreter, discerner') is the study of the design, construction and use of sundials.
The foundations of gnomonics were known to the ancient Greek Anaximander (ca. 550 BCE), which augmented the science of shadows brought back from Egypt by Thales of Miletus. Gnomonics was used by Greek and Roman architects from 25 BCE for the design of buildings.
Excerpted from Wikipedia’s “gnomonics” article, available under the CC BY-SA 4.0 licence.