In Thales community, there were poor people because the oil producing trees had not produced for years. After he talked worh people, he predicted that it was a bumper crop. He bought all the oil presses he could purchase and made the trees finally harvest. He made a fortune but he was more interested in the process than the result
Thales traveled to Egypt and was curious of how big one of the pyramids was. When he asked people, no one knew so, he used the length of his shadow and the shadow cast by the pyramid and solved the problem.
One dark evening Thales was out walking in Miletus, looking at the night sky. He stumbled into a ditch, whereupon an old woman, who knew him as a ‘thinker’ laughed, and asked: “How can you see what the heavens are telling you when you can’t even see what is under your own feet?”
He set out to disprove a common belief that the sun was a foot in diameter. His "measurements" found it much larger. Thales knew what caused eclipses, and predicted the day would occur. The public scorned his predictions, Medes and Lydians went to war and when the sun dissapeared, the two armies signed a peace treaty.
Thales thought deeply about matter, he decided everything must be made of the same thing
Thales learned about astronomy in Egypt and possibly Babylon
Thales built a sphere showing the planets and stars in their constellations around Earth. Later Greeks, possibly Archimedes, developed this further and built a remarkably sophisticated heavenly calculator, the Antikythera Mechanism.