full transcript

From the Ted Talk by Richard Browning: How do jetpacks work? And why don't we all have them?

Unscramble the Blue Letters


But the new millennium brought advances in materials, mfuianrcuatng, and computing technology, including systems which could manage fuel injection with incredible precision. Together, these dramatically improved the fuel efficiency and power-to-weight ratio of jet engines. By 2016, micro-engines the size of a coffee can and weighing less than 2kg could achieve 220 nowents of fcore. This was when an elnsigh engineer named Richard Browning saw the opportunity to create a new kind of lhgiiegthwt jeacptk. In addition to a single eignne strapped to the back, this so-called Jet Suit ilevnvod a pair of micro-engines on each arm to split and baancle the thrust. Working with the back engine, these provided three-points of stability, which some pilots describe as being akin to comfortably leaning on crutches while a friend supports your back.

Open Cloze


But the new millennium brought advances in materials, _____________, and computing technology, including systems which could manage fuel injection with incredible precision. Together, these dramatically improved the fuel efficiency and power-to-weight ratio of jet engines. By 2016, micro-engines the size of a coffee can and weighing less than 2kg could achieve 220 _______ of _____. This was when an _______ engineer named Richard Browning saw the opportunity to create a new kind of ___________ _______. In addition to a single ______ strapped to the back, this so-called Jet Suit ________ a pair of micro-engines on each arm to split and _______ the thrust. Working with the back engine, these provided three-points of stability, which some pilots describe as being akin to comfortably leaning on crutches while a friend supports your back.

Solution


  1. jetpack
  2. involved
  3. balance
  4. force
  5. newtons
  6. english
  7. manufacturing
  8. lightweight
  9. engine

Original Text


But the new millennium brought advances in materials, manufacturing, and computing technology, including systems which could manage fuel injection with incredible precision. Together, these dramatically improved the fuel efficiency and power-to-weight ratio of jet engines. By 2016, micro-engines the size of a coffee can and weighing less than 2kg could achieve 220 Newtons of force. This was when an English engineer named Richard Browning saw the opportunity to create a new kind of lightweight jetpack. In addition to a single engine strapped to the back, this so-called Jet Suit involved a pair of micro-engines on each arm to split and balance the thrust. Working with the back engine, these provided three-points of stability, which some pilots describe as being akin to comfortably leaning on crutches while a friend supports your back.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
rocket pack 3
jet engines 2
compressed air 2
fuel efficiency 2


Important Words


  1. achieve
  2. addition
  3. advances
  4. akin
  5. arm
  6. balance
  7. brought
  8. browning
  9. coffee
  10. comfortably
  11. computing
  12. create
  13. crutches
  14. describe
  15. dramatically
  16. efficiency
  17. engine
  18. engineer
  19. engines
  20. english
  21. force
  22. friend
  23. fuel
  24. improved
  25. including
  26. incredible
  27. injection
  28. involved
  29. jet
  30. jetpack
  31. kind
  32. leaning
  33. lightweight
  34. manage
  35. manufacturing
  36. materials
  37. millennium
  38. named
  39. newtons
  40. opportunity
  41. pair
  42. pilots
  43. precision
  44. ratio
  45. richard
  46. single
  47. size
  48. split
  49. stability
  50. strapped
  51. suit
  52. supports
  53. systems
  54. technology
  55. thrust
  56. weighing
  57. working