NERD

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Across
  1. 4. Electricity carrier.
  2. 8. A meteorological phenomenon with a spectrum of colors.
  3. 12. The repetitive variation, typically in time.
  4. 13. Swinging weight in a clock.
  5. 14. A grid used for organizing data or solving linear equations.
  6. 16. A machine for producing continuous power.
  7. 17. Using compressed air to transmit and control energy.
  8. 18. The GOAT of Football
  9. 20. A sentimental longing or affection for the past.
Down
  1. 1. Grammar structure in programming.
  2. 2. Heat transfer process usually occurring in liquids.
  3. 3. A statement that contradicts itself but may still be true.
  4. 5. The SI unit of electric charge.
  5. 6. A tragedy by William Shakespeare, Prince of Denmark.
  6. 7. A collection of 14-line poems.
  7. 9. A very young child or infant.
  8. 10. Closed loop for electrical flow.
  9. 11. A mechanical device that transmits power from an engine to the wheels.
  10. 15. The daily disappearance of the sun below the horizon.
  11. 19. A series of rhythmic movements to music.