Who was Anaxagoras? Greek scientist

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A map showing Clazomenae about halfway down the Aegean coast of Turkey

A map showing Clazomenae

Like Thales before him, Anaxagoras was born in what’s now Turkey. Anaxagoras was born around 500 BC in a city called Clazomenae, in the Persian Empire. When he was a child, Clazomenae participated in the Ionian Revolt and soon became part of the Athenian Empire.

Anaxagoras seems to have been born into a rich family, and he probably went to school, but later he chose to be poorer so he could spend his time studying instead of running his family’s business. When Anaxagoras grew up, he went to Athens, which was essentially his capital city. He lived in Athens most of his life. He became friends with Pericles and Euripides, and he must have known Socrates.

Anaxagoras’ most important idea was that people should not trust their senses (seeing and hearing) or their common sense to tell them about the world, but they should always use logic and reason to figure out the truth instead.

Eclipse of the sun

Eclipse of the sun

Sometimes this idea led Anaxagoras to some funny conclusions. For instance, he said that snow must have some darkness in it, as well as whiteness, or how could it turn into dark water when it melted? But he was able to use his logic to figure out correctly what caused eclipses.

Anaxagoras’ ideas upset a lot of people in Athens who said he didn’t believe in the Greek gods (and maybe he didn’t). He was arrested, and only escaped being sentenced to death by the jury because his friend Pericles helped him. He had to leave Athens, and he died soon after in Lampsacus (near Troy), about 428 BC. Only fragments of the books Anaxagoras wrote survive today – most of them were lost or destroyed.

Almost a hundred years later, Aristotle said that he had gotten the beginnings of his science from Anaxagoras’ work.

Learn by doing: watch an eclipse
More about Aristarchus

Bibliography and further reading about Anaxagoras:

  

Greek and Roman Science, by Don Nardo (1998). Nardo has written a lot of good books about the ancient world for kids; this one is no exception.

Ancient Science: 40 Time-Traveling, World-Exploring, History-Making Activities , by Jim Wiese (2003). Activities, as the title says – how to make your own sundial, and so on. The author is a science teacher.

Early Greek Science: Thales to Aristotle, by Geoffrey Lloyd (1974).

History of Greek Mathematics: From Aristarchus to Diophantus, by Thomas L. Heath (1921, reprinted 1981). A lot of Euclid, but also describes who the other major Greek mathematicians were and what they did.

Episodes from the Early History of Mathematics, by Asger Aaboe (1997).

Other mathematicians:

AristotleAnaxagorasEuclidPythagoras, and Aristarchus.

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By | 2017-07-18T06:58:55+00:00 July 18th, 2017|Greeks, Science|0 Comments
Cite this page: Carr, K.E. Who was Anaxagoras? Greek scientist. Quatr.us Study Guides, July 18, 2017. Web. December 12, 2017.

About the Author:

Karen Carr

Karen Carr is Associate Professor Emerita, Department of History, Portland State University. She holds a doctorate in Classical Art and Archaeology from the University of Michigan. Follow her on Instagram, Pinterest, or Twitter, or buy her book, Vandals to Visigoths.

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