Guess the Scientist and Discoveries?

12345678
Across
  1. 2. one of the greatest musicians
  2. 4. helps your see far images better (like space)
  3. 6. the Catholic Church officially acknowledged that he had been right
  4. 7. his book Novum Organum encourages experimental method.
  5. 8. he wrote about light and colours was read to the society
Down
  1. 1. passiontely committed to individual freedom.
  2. 3. deaf musician
  3. 5. believed that people could learn from experience/improve themselves