The discoveries of a new era

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Across
  1. 2. / A system of spreading information that some what nullified the printing press.
  2. 4. / The person who is famous for the scintillating bulb when you get an idea.
  3. 5. / A weapon used to express Santimonious in the imperial era>
  4. 8. / A leader who rules the largest territory by uniting countries that repudiate others.
  5. 9. / Who made the 3 laws of planetary motion known wide and clarion.
Down
  1. 1. / This system of rules supposedly started from a cognizant man under a tree.
  2. 3. / Type of energy that is admonished in power plants.
  3. 4. / A tool created to gainsay heliocentrism through observations.
  4. 6. / A concept that solves the problem of mass production and zeitgeist industrialization.
  5. 7. / A latent ingredient for imperial weaponery