The Microwave Revolution

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Across
  1. 3. Prepare a meal
  2. 4. Energy level
  3. 6. Appliance for heating
  4. 8. Single appliance
  5. 9. Melt ice
  6. 12. Inventor's last name
  7. 15. Warm again
  8. 17. Make crunchy
  9. 21. Quick speed
  10. 22. Thaw frozen items
  11. 25. Entry point
  12. 26. Rotate slowly
  13. 27. Room to cook
  14. 30. Cooked food
  15. 33. Simple to use
  16. 34. Not harmful
  17. 36. Sound of corn
  18. 37. Countdown device
  19. 38. First producer
Down
  1. 1. Function to thaw
  2. 2. Sound alert
  3. 5. Spin around
  4. 7. Done swiftly
  5. 10. Energy type
  6. 11. Become liquid
  7. 13. Beam of energy
  8. 14. Warmth produced
  9. 16. High temperature
  10. 18. Early use for microwaves
  11. 19. Spencer's first name
  12. 20. Pushable control
  13. 21. What gets cooked
  14. 23. Small portion
  15. 24. Flat serving dish
  16. 25. Plate or bowl
  17. 28. Source of power
  18. 29. Clear window
  19. 31. Get ready
  20. 32. Slightly hot
  21. 35. Water vapor