Eudoxus of Cnidus

High school (ages 12+)
History & Culture

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/eudoxus-of-cnidus

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. When was Eudoxus of Cnidus born?Circa 390 BC
2. Where was Eudoxus of Cnidus born?Cnidus, ancient Greek city in Caria
3. Who was Eudoxus of Cnidus?Eudoxus was an ancient Greek thinker who lived around 390 to 340 BC. He studied astronomy, math, medicine, and even helped make laws.
4. What did Eudoxus do with stars and planets?He imagined that each planet, the Sun, and the Moon moved on a set of invisible, concentric spheres. These spheres spun at different speeds to explain how the sky changes.

Geocentric Model: A cosmological model with Earth at the universe's center, around which celestial bodies orbit.
Concentric Spheres: Nested, co-centered imaginary spheres used in ancient astronomy to explain celestial motion.
Method of Exhaustion: An ancient mathematical technique for finding areas and volumes by inscribing and circumscribing polygons, a precursor to calculus.