3. Which of the following actions was an important scientific advance used by Galileo? A. discovering planets in the solar system
B. inventing the first telescope
C. looking at the moon
D. expressing scientific observations with mathematical formulas
Which of the following actions was an important scientific advance used by Galileo?
A. discovering planets in the solar system
B. inventing the first telescope
C. looking at the moon
D. expressing scientific observations with mathematical formulas