Guess the Scientist and Discoveries?

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Across
  1. 3. helped you see make father things better (like space)
  2. 4. great discovery was that the same force ruled motion of the planets and all matter on earth/space.
  3. 6. won recognition as a writer of essays.
  4. 7. turned his thoughts into the justice system.
  5. 8. believed people can learn from experience and improve themselves.
Down
  1. 1. his approach is called empiricism, or the experimental method.
  2. 2. deaf musician.
  3. 5. created his own telescope