Famous Inventors

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Across
  1. 3. Ancient Greek mathematician and inventor of the screw pump
  2. 6. Orville and Wilbur who are credited with inventing and flying the first airplane
  3. 7. The scientist and inventor credited with patenting the first practical telephone
Down
  1. 1. The inventor of the movable type printing press in Europe
  2. 2. An electrical resonant transformer circuit invented by Nikola Tesla
  3. 4. The Renaissance polymath who conceptualized flying machines and tanks
  4. 5. The first commercially practical incandescent light invented by Thomas Edison