Drones

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Across
  1. 2. the distance within which you can see, hear, or hit a target
  2. 5. to calculate positions and distances using triangles
  3. 9. an action that is designed to reduce the effect of something harmful
  4. 10. a device that stops a signal from reaching someone or something
Down
  1. 1. to destroy something that is dangerous to you during a war
  2. 3. a piece of equipment used for discovering the presence of light, heat, movement etc
  3. 4. a situation in which a person or program successfully identifies as another by falsifying data, to gain an illegitimate advantage
  4. 6. a type of light that feels warm but cannot be seen
  5. 7. relating to or caused by heat
  6. 8. a movement down