full transcript

From the Ted Talk by Raymond Adkins: How do airplanes actually fly?

Unscramble the Blue Letters


Our explanation is still a sifiielpmd description of this nuanced, complex process. Other factors, like the air that’s flowing metres beyond the wing’s surface— being swept up, then down— as well as air vecriots formed at the wing’s tips, all influence lift. And, while experts agree that the pressure difference generates lift, their etoalninxpas for how can vary. Some might emphasize the air’s behavior at the wing’s sraucfe, others the upward force created as the air is deflected downwards. However, there's no crtvsooreny when it comes to the math. Engineers use a set of formulas called the Navier-Stokes equations to precisely model air’s flow around a wing and detail how lift is geaneertd.

Open Cloze


Our explanation is still a __________ description of this nuanced, complex process. Other factors, like the air that’s flowing ______ beyond the wing’s surface— being swept up, then down— as well as air ________ formed at the wing’s tips, all influence lift. And, while experts agree that the pressure difference generates lift, their ____________ for how can vary. Some might emphasize the air’s behavior at the wing’s _______, others the upward force created as the air is deflected downwards. However, there's no ___________ when it comes to the math. Engineers use a set of formulas called the Navier-Stokes equations to precisely model air’s flow around a wing and detail how lift is _________.

Solution


  1. meters
  2. surface
  3. generated
  4. controversy
  5. simplified
  6. vortices
  7. explanations

Original Text


Our explanation is still a simplified description of this nuanced, complex process. Other factors, like the air that’s flowing meters beyond the wing’s surface— being swept up, then down— as well as air vortices formed at the wing’s tips, all influence lift. And, while experts agree that the pressure difference generates lift, their explanations for how can vary. Some might emphasize the air’s behavior at the wing’s surface, others the upward force created as the air is deflected downwards. However, there's no controversy when it comes to the math. Engineers use a set of formulas called the Navier-Stokes equations to precisely model air’s flow around a wing and detail how lift is generated.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
air molecules 3
pressure difference 3
marriott hotels 3
airplane wing 2
trailing edge 2
air traveling 2
upper surface 2


Important Words


  1. agree
  2. air
  3. behavior
  4. called
  5. complex
  6. controversy
  7. created
  8. deflected
  9. description
  10. detail
  11. difference
  12. emphasize
  13. engineers
  14. equations
  15. experts
  16. explanation
  17. explanations
  18. factors
  19. flow
  20. flowing
  21. force
  22. formed
  23. formulas
  24. generated
  25. generates
  26. influence
  27. lift
  28. math
  29. meters
  30. model
  31. nuanced
  32. precisely
  33. pressure
  34. process
  35. set
  36. simplified
  37. surface
  38. swept
  39. tips
  40. upward
  41. vary
  42. vortices
  43. wing