Puzzle for Josh

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Across
  1. 5. Surely he must be joking
  2. 6. Country that the duo did a presentation on
  3. 9. Physics field trip destination
  4. 10. Legendary editor of puzzles like these
  5. 16. Most recently watched movie in theaters by the pair
  6. 17. The name of team 15533's first robot
  7. 21. He can be three-hole punch or plain white
  8. 22. Host of local ftc events
  9. 27. Suppose
  10. 29. Individual with a "machine" named after them
  11. 31. It was transferred to China in 1999
  12. 32. Subject of a Car and Driver report
  13. 33. Athlete's booster
  14. 35. What someone cleaning up a mess might be or the part of our robot that got destroyed by Hopkins maroon
  15. 36. Harness horse's gait
  16. 37. He stole many ideas from tesla
  17. 40. American musician particularly known for his often humorous and political lyrics, as well as his songs about baseball
  18. 42. Reading chair accompaniers
  19. 43. What Josh and Christian were in 5th and 6th grade
  20. 46. Fizzy water
  21. 48. The first of a pair of devices that made up a 7th grade science project
  22. 50. The best quiz show in existence
  23. 51. What we powered rockets with
  24. 52. Josh and Christian's first in school project
  25. 53. Landing strip
  26. 54. Mounted a fierce campaign
  27. 55. Intensely passionate
  28. 57. Life's pleasures
Down
  1. 1. A game that Christian has won every series of
  2. 2. A common backyard sport
  3. 3. Where DJ is from
  4. 4. Works without a break?
  5. 7. Tennis's Mandlikova
  6. 8. Josh and Christian's mini golf hole featured this made from K'Nex
  7. 9. Josh and Christians first invention
  8. 11. He's at bat
  9. 12. Where Josh and Christian met
  10. 13. It's just under 8: Abbr.
  11. 14. An invention which the writer of this puzzle isn't sure the duo ever completed
  12. 15. Screwy in the head
  13. 18. Billionaire which part of one of our robots was named after
  14. 19. One of many on a monitor
  15. 20. Foul-up
  16. 23. Kind of blanket
  17. 24. Ving of Hollywood
  18. 25. Salutation in an old-fashioned love letter
  19. 26. The duos second invention
  20. 28. What we were in a musical in 6th grade
  21. 30. A class that both josh and Christian independent studied
  22. 34. The first movie Josh and Christian watched together
  23. 36. A game that Josh has won every matchup of
  24. 38. Robotics totem
  25. 39. Light bluish green
  26. 41. The place where one might find "green onions"
  27. 44. When the robotics team educated at the elementary schools
  28. 45. This presentation can be arrow or not arrow
  29. 47. The first thing used in 9 down
  30. 49. The second half of 48 across
  31. 56. A favorite comic strip shared by Josh and Christian