Famous Inventors

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Across
  1. 6. an Italian inventor known for his pioneering work on long-distance radio transmission
  2. 7. he invented the morse code
  3. 9. father of observational astronomy and the father of modern physics
  4. 10. an American inventor known for invention of first practical incandescent light bulb
Down
  1. 1. a Polish and naturalized-French physicist who conducted pioneering research on radioactivity
  2. 2. a Swedish inventor, his most famous invention being dynamite
  3. 3. he invented a method for determining the volume of an object with an irregular shape
  4. 4. he developed the theory of relativity
  5. 5. a Scottish inventor who improved on Thomas Newcomen's steam engine in 1776
  6. 8. he formulated the laws of motion and universal gravitation