Casts Quote by Marcus Vitruvius Pollio
“Remembering that Eratosthenes of Cyrene, employing mathematical theories and geometrical methods, discovered from the course of the sun, the shadows cast by an equinoctial gnomon, and the inclination of the heaven that the circumference of the earth is two hundred and fifty-two thousand stadia, that is, thirty-one million five hundred thousand paces.”
About This Quote
Source Historical Text: De Architectura by Vitruvius, Book III, 1st century BC
Eratosthenes measured Earth’s size using shadows and geometry, estimating ~252,000 stadia.
In simple terms: Measured Earth with shadows, geometry.
Key Takeaway
Use simple observations for big questions.
Themes
science
measurement
geometry
history
Mood
analytical
reflective
Type
historical
educational
When to use this quote
- Education
- navigation
- space exploration
- climate modeling
Key Concepts
Ancient astronomy
mathematics
geodesy
Questions to Reflect On
- How can ancient methods inspire modern science?
- What are the limits of simple tools?
A Different Perspective
Accuracy limited by tools of era.
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