How did Galileo transform the visual evidence of lunar irregularities into quantifiable data?

Answer

By measuring the length of shadows cast by topographical features at the terminator

Galileo used careful geometric analysis, focusing on the boundary between light and dark, to measure how long shadows cast by mountains were at different times, allowing him to calculate their approximate heights.

How did Galileo transform the visual evidence of lunar irregularities into quantifiable data?

#Videos

Galileo's Revolutionary Observation - YouTube

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