Multiple choice general knowledge

Galileo was an Italian astronomer who

  1. developed the telescope

  2. discovered four satellites of Jupiter

  3. discovered that the movement of pendulum produces a regular time measurement

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Galileo Galilei made multiple groundbreaking contributions: he improved the telescope (not invented it), discovered four of Jupiter's moons, and studied pendulum motion for timekeeping. While he did not invent the telescope, his astronomical discoveries and pendulum studies were revolutionary.

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