Life In The Industrial Age

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Across
  1. 2. built a line of affordable cars called the model t
  2. 3. invented the telegraph in 1837
  3. 6. heating foods and liquids to high temperatures to kill bacteria
  4. 9. idea that certain elements release energy when they break down
  5. 10. developed the concept of natural selection
  6. 13. succeeded in flying a powered airplane in sustained flight
  7. 14. used previous discoveries to develop the wireless telegraph
  8. 17. revolutionized physics
  9. 18. developed the most usable and practical lightbulb
  10. 19. involved forcing air through molten metal to burn out carbon and other impurities that make metal brittle
  11. 20. discovered the connection between magnetism and electricity
Down
  1. 1. a machine that sent messages instantly over wires
  2. 4. discovered polonium and radium
  3. 5. the growth in the proportion of people living in towns and cities
  4. 7. developed in reaction to romanticism
  5. 8. a literary and artistic development of the early 1800s
  6. 11. a drug that reduces pain and in large doses makes that patient unconscious
  7. 12. inventor of the telephone
  8. 15. a movement in which artists introduced a new way of looking at the world
  9. 16. showed the link between microbes and disease