full transcript

From the Ted Talk by Arvind Gupta: Turning trash into toys for learning

Unscramble the Blue Letters


This is very, very simple. You can see, this is the generator. It's a crank generator. These are two magnets. This is a large pulley made by siihndwacng rbebur between two old CDs. Small pulley and two strong magnets. And this fiber turns a wire aaechttd to an LED. If I spin this pulley, the small one's going to spin much faster. There will be a spinning magnetic field. Lines, of course, would be cut, the force will be generated. And you can see, this LED is going to glow. So this is a small canrk generator.

Well, this is, again, it's just a ring, a steel ring with steel nuts. And what you can do is just, if you give it a twirl, well they just keep going on. And imagine a bncuh of kids standing in a circle and just waiting for the steel ring to be paessd on. And they'd be absolutely jouyos pylanig with this.

Open Cloze


This is very, very simple. You can see, this is the generator. It's a crank generator. These are two magnets. This is a large pulley made by ___________ ______ between two old CDs. Small pulley and two strong magnets. And this fiber turns a wire ________ to an LED. If I spin this pulley, the small one's going to spin much faster. There will be a spinning magnetic field. Lines, of course, would be cut, the force will be generated. And you can see, this LED is going to glow. So this is a small _____ generator.

Well, this is, again, it's just a ring, a steel ring with steel nuts. And what you can do is just, if you give it a twirl, well they just keep going on. And imagine a _____ of kids standing in a circle and just waiting for the steel ring to be ______ on. And they'd be absolutely ______ _______ with this.

Solution


  1. playing
  2. joyous
  3. attached
  4. sandwiching
  5. crank
  6. bunch
  7. rubber
  8. passed

Original Text


This is very, very simple. You can see, this is the generator. It's a crank generator. These are two magnets. This is a large pulley made by sandwiching rubber between two old CDs. Small pulley and two strong magnets. And this fiber turns a wire attached to an LED. If I spin this pulley, the small one's going to spin much faster. There will be a spinning magnetic field. Lines, of course, would be cut, the force will be generated. And you can see, this LED is going to glow. So this is a small crank generator.

Well, this is, again, it's just a ring, a steel ring with steel nuts. And what you can do is just, if you give it a twirl, well they just keep going on. And imagine a bunch of kids standing in a circle and just waiting for the steel ring to be passed on. And they'd be absolutely joyous playing with this.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
national movement 2
ordinary people 2
village science 2
science program 2
cycle valve 2
bicycle tube 2
great fun 2
major research 2
research papers 2
blind children 2
great boon 2
crank generator 2
steel ring 2

ngrams of length 3

collocation frequency
village science program 2
major research papers 2

Important Words


  1. absolutely
  2. attached
  3. bunch
  4. cds
  5. circle
  6. crank
  7. cut
  8. faster
  9. fiber
  10. field
  11. force
  12. generated
  13. generator
  14. give
  15. glow
  16. imagine
  17. joyous
  18. kids
  19. large
  20. led
  21. lines
  22. magnetic
  23. magnets
  24. nuts
  25. passed
  26. playing
  27. pulley
  28. ring
  29. rubber
  30. sandwiching
  31. simple
  32. small
  33. spin
  34. spinning
  35. standing
  36. steel
  37. strong
  38. turns
  39. twirl
  40. waiting
  41. wire