Most americans cant get above 10% on this general knowledge quiz! can you?

Galileo was an Italian astronomer who...

40%

Correct!

Incorrect!

Galileo made many contributions: improved telescope, supported heliocentrism, studied moons of Jupiter, etc.

Developed the telescope

Discovered the four satellites of Jupiter

Discovered that the movement of a pendulum produces a regular time measurement

All of the above

40%