Inventions

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Across
  1. 2. a tool for navigation
  2. 5. allowed us to go from one place to another faster
  3. 6. a network that connects computers all over the world. We use Wifi to connect to it.
  4. 7. flying vehicle
Down
  1. 1. protection from a disease.
  2. 3. machine which can transmit voice from one person to another
  3. 4. a machine for printing text or pictures, especially one linked to a computer.