full transcript
From the Ted Talk "Harald Haas: Wireless data from every light bulb"

Unscramble the Blue Letters

Once again. Still don't believe? It is this light that transmits this high-definition video in a split stream. And if you look at the light, it is illuminating as you would txecep. You don't notice with your human eye. You don't notice the subtle changes in the mieldatpu that we impress onto this hgtli bulb. It's rinsvge the purpose of illumination, but at the same time, we are able to trstiamn this data. And you see, even light from the ceiling comes down here to the receiver. It can ignore that constant light, because all the receiver's interested in are subtle changes. You also have a critical question now, and you say, "Okay, do I have to have the light on all the time to have this working?" And the nawres is yes. But, you can dim down the light to a level that it appears to be off. And you are still able to transmit data — that's possible.

Open Cloze

Once again. Still don't believe? It is this light that transmits this high-definition video in a split stream. And if you look at the light, it is illuminating as you would ______. You don't notice with your human eye. You don't notice the subtle changes in the _________ that we impress onto this _____ bulb. It's _______ the purpose of illumination, but at the same time, we are able to ________ this data. And you see, even light from the ceiling comes down here to the receiver. It can ignore that constant light, because all the receiver's interested in are subtle changes. You also have a critical question now, and you say, "Okay, do I have to have the light on all the time to have this working?" And the ______ is yes. But, you can dim down the light to a level that it appears to be off. And you are still able to transmit data — that's possible.

Solution

  1. serving
  2. light
  3. transmit
  4. expect
  5. amplitude
  6. answer

Original Text

Once again. Still don't believe? It is this light that transmits this high-definition video in a split stream. And if you look at the light, it is illuminating as you would expect. You don't notice with your human eye. You don't notice the subtle changes in the amplitude that we impress onto this light bulb. It's serving the purpose of illumination, but at the same time, we are able to transmit this data. And you see, even light from the ceiling comes down here to the receiver. It can ignore that constant light, because all the receiver's interested in are subtle changes. You also have a critical question now, and you say, "Okay, do I have to have the light on all the time to have this working?" And the answer is yes. But, you can dim down the light to a level that it appears to be off. And you are still able to transmit data — that's possible.

ngrams of length 2

collocation frequency
light bulbs 8
radio waves 6
wireless data 5
visible light 4
base stations 4
transmit data 3
speed data 3
light spectrum 3
light bulb 3
led light 3
data transmission 3
data stream 3

ngrams of length 3

collocation frequency
visible light spectrum 3

Important Words

  1. amplitude
  2. answer
  3. appears
  4. bulb
  5. ceiling
  6. constant
  7. critical
  8. data
  9. dim
  10. expect
  11. eye
  12. human
  13. ignore
  14. illuminating
  15. illumination
  16. impress
  17. interested
  18. level
  19. light
  20. notice
  21. purpose
  22. question
  23. receiver
  24. serving
  25. split
  26. stream
  27. subtle
  28. time
  29. transmit
  30. transmits
  31. video
  32. working