Galileo Galilei: A New Look at the Sky

A look inside

The opening of Galileo Galilei: A New Look at the Sky, free to read.

1. 

   Galileo's father, Vincenzo, played the lute, a stringed instrument. He wanted to know why one note sounded higher than another. Vincenzo hung different weights on music strings and listened. This was an experiment: a careful test with real things. Some historians think young Galileo may have helped, but that is not certain. Galileo learned from his father that a question could be tested.

2. 

   Galileo was born in Pisa, Italy, and grew up in Florence. Vincenzo made a living by playing and teaching music, and Galileo had private lessons as a boy. His family had a respected name but little money. The young Galileo learned in a home where music and numbers were close together. Questions about sound could lead to questions about motion.

3. 

   When Galileo was older, his father hoped he would become a doctor. At the University of Pisa, Galileo studied medicine, but he turned toward mathematics, the study of numbers and measuring. He learned geometry, the math of shapes and lines, and later taught it to others. Those tools helped him ask questions he could measure instead of merely guess about.