full transcript
"From the Ted Talk by Vijay Kumar: Robots that fly ... and cooperate"

Unscramble the Blue Letters

So it has four rotors. If you spin these rotors at the same seped, the robot hovers. If you increase the speed of each of these rotors, then the robot feils up, it accelerates up. Of course, if the robot were tilted, inclined to the horizontal, then it would accelerate in this direction. So to get it to tilt, there's one of two ways of doing it. So in this picture, you see that rotor four is spinning faster and rotor two is spinning slower. And when that happens, there's a moment that causes this robot to roll. And the other way around, if you increase the speed of rotor three and decrease the speed of rtoor one, then the robot pitches forward.

Open Cloze

So it has four rotors. If you spin these rotors at the same _____, the robot hovers. If you increase the speed of each of these rotors, then the robot _____ up, it accelerates up. Of course, if the robot were tilted, inclined to the horizontal, then it would accelerate in this direction. So to get it to tilt, there's one of two ways of doing it. So in this picture, you see that rotor four is spinning faster and rotor two is spinning slower. And when that happens, there's a moment that causes this robot to roll. And the other way around, if you increase the speed of rotor three and decrease the speed of _____ one, then the robot pitches forward.

Solution

  1. flies
  2. speed
  3. rotor

Original Text

So it has four rotors. If you spin these rotors at the same speed, the robot hovers. If you increase the speed of each of these rotors, then the robot flies up, it accelerates up. Of course, if the robot were tilted, inclined to the horizontal, then it would accelerate in this direction. So to get it to tilt, there's one of two ways of doing it. So in this picture, you see that rotor four is spinning faster and rotor two is spinning slower. And when that happens, there's a moment that causes this robot to roll. And the other way around, if you increase the speed of rotor three and decrease the speed of rotor one, then the robot pitches forward.

ngrams of length 2

collocation frequency
dimensional space 5
minimum snap 3

Important Words

  1. accelerate
  2. accelerates
  3. decrease
  4. direction
  5. faster
  6. flies
  7. horizontal
  8. hovers
  9. inclined
  10. increase
  11. moment
  12. picture
  13. pitches
  14. robot
  15. roll
  16. rotor
  17. rotors
  18. slower
  19. speed
  20. spin
  21. spinning
  22. tilt
  23. tilted
  24. ways