Search Results: Pythagorean theorem

Philolaus (l. c. 470 to c. 385 BCE) was a Pythagorean philosopher who claimed that fire was the first cause of existence and heat the underlying source of human life. He is best known for his pyrocentric model of the universe, which replaced...

Pythagoras (l.c. 571 to c. 497 BCE) was a Greek philosopher whose teachings emphasized the immortality and transmigration of the soul (reincarnation), virtuous, humane behavior toward all living things, and the concept of "number" as truth...

Menelaus of Alexandria was a Greek astronomer, scientist, and mathematician who lived around 100 CE. Menelaus made a significant and lasting contribution to the fields of astronomy, geometry, and trigonometry. His major work, the Spherics...

Empedocles (l. c. 484-424 BCE) was a Greek philosopher and mystic whose work harmonized the philosophies of Parmenides (l. c. 485 BCE), Heraclitus (l. c. 500 BCE), and Pythagoras (l. c. 571 to c. 497 BCE) in presenting a unified vision of...

Aristarchus of Samos (l. c. 310 - c. 230 BCE) was a Greek astronomer who first proposed a heliocentric model of the universe in which the sun, not the earth, was at the center. Although his theory was noted by other thinkers of his time...

Greek mathematics, the study of numbers and their properties, patterns, structure, space, apparent change, and measurement, is said to have originated with Thales of Miletus (l. c. 585 BCE) but was clearly understood during the periods of...

The powerful procedures possible with modern mathematics are rooted in logic that began thousands of years ago. Thales' Theorem demonstrates one style of early mathematical logic, a logic that is relevant and important today.

Euclid of Alexandria (lived c. 300 BCE) systematized ancient Greek and Near Eastern mathematics and geometry. He wrote The Elements, the most widely used mathematics and geometry textbook in history. Older books sometimes confuse him with...

The Pre-Socratic Philosophers are defined as the Greek thinkers who developed independent and original schools of thought from the time of Thales of Miletus (l. c. 585 BCE) to that of Socrates of Athens (470/469-399 BCE). They are known as...