Technologies and Scientific Discoveries Crossword

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Across
  1. 2. A device that transmits moving images and sound.
  2. 4. A device used to perform mathematical computations quickly and accurately.
  3. 6. A devise used for typing documents before computers became common.
  4. 7. A device used for long-distance voice communication.
  5. 11. A technology that transmits sound through electromagnetic waves.
  6. 12. A flying vehicle with wings.
  7. 13. The flow of electric charge that powers modern life.
  8. 15. An instrument used to observe distant objects in space.
Down
  1. 1. A household appliance used to keep food and drinks cold and fresh.
  2. 3. A device used to capture photographs or record videos.
  3. 5. An electronic device used for processing data.
  4. 8. The first widely used antibiotic.
  5. 9. An instrument used to see tiny objects.
  6. 10. A method of preventing disease by stimulating immunity.
  7. 14. A global network that connects computers worldwide.