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Victorian Era's Peculiar Ingenious Contraptions
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Instrument detecting electric charge via leaf movement in a jar
  • 2. Optical instrument creating illusion of depth from flat images
  • 3. Describes systems using compressed air, vital for mail transport tubes
Down
  • 4. Spinning drum that produced illusion of motion before film reels
  • 5. Device that traced sound waves visually before playback was possible
  • 6. Pseudoscientific study of skull shapes claiming personality insights
  • 7. Early invention for capturing airborne particles or aerial maps

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