The Enlightenment Period and the Revolutions.

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Across
  1. 5. is a superseded description of the Universe with Earth at the center
  2. 8. was a series of events that marked the emergence of modern science
  3. 9. a cosmological model in which the Sun is assumed to lie at or near a central point
  4. 11. new advances in science and technology
  5. 12. a device or tool used for scientific purposes
Down
  1. 1. the act of finding or learning something for the first time
  2. 2. is best known for having invented the calculus
  3. 3. a researcher develops a hypothesis, tests it through various means, and then modifies the hypothesis on the basis of the outcome of the tests and experiments.
  4. 4. is the most recent threshold of increasing complexity
  5. 6. was a natural philosopher, astronomer, and mathematician who made fundamental contributions to the sciences of motion, astronomy, and strength of materials and to the development of the scientific method.
  6. 7. the universal force of attraction acting between all matter.
  7. 10. is a suggested solution for an unexplained occurrence