full transcript
"From the Ted Talk by Harald Haas: Forget Wi-Fi. Meet the new Li-Fi Internet"

Unscramble the Blue Letters

I demonstrated for the first time, at TED in 2011, Li-Fi, or Light Fidelity. Li-Fi uses off-the-shelf LEDs to transmit data iilbecrndy fast, and also in a safe and secure manner. Data is transported by the lihgt, encoded in subtle changes of the brightness. If we look around, we have many LEDs around us, so there's a rich infrastructure of Li-Fi transmitters around us. But so far, we have been using special deicves — small photo detectors, to receive the intoifmaron encoded in the data. I wanted to find a way to also use existing infrastructure to receive data from our Li-Fi lights. And this is why I have been looking into solar clels and solar panels.

Open Cloze

I demonstrated for the first time, at TED in 2011, Li-Fi, or Light Fidelity. Li-Fi uses off-the-shelf LEDs to transmit data __________ fast, and also in a safe and secure manner. Data is transported by the _____, encoded in subtle changes of the brightness. If we look around, we have many LEDs around us, so there's a rich infrastructure of Li-Fi transmitters around us. But so far, we have been using special _______ — small photo detectors, to receive the ___________ encoded in the data. I wanted to find a way to also use existing infrastructure to receive data from our Li-Fi lights. And this is why I have been looking into solar _____ and solar panels.

Solution

  1. incredibly
  2. light
  3. devices
  4. cells
  5. information

Original Text

I demonstrated for the first time, at TED in 2011, Li-Fi, or Light Fidelity. Li-Fi uses off-the-shelf LEDs to transmit data incredibly fast, and also in a safe and secure manner. Data is transported by the light, encoded in subtle changes of the brightness. If we look around, we have many LEDs around us, so there's a rich infrastructure of Li-Fi transmitters around us. But so far, we have been using special devices — small photo detectors, to receive the information encoded in the data. I wanted to find a way to also use existing infrastructure to receive data from our Li-Fi lights. And this is why I have been looking into solar cells and solar panels.

ngrams of length 2

collocation frequency
solar cell 19
solar cells 6
led lamp 4
li fi 4
energy harvested 3
energy harvesting 3
cells integrated 3

ngrams of length 3

collocation frequency
solar cells integrated 3

Important Words

  1. brightness
  2. cells
  3. data
  4. demonstrated
  5. detectors
  6. devices
  7. encoded
  8. existing
  9. fast
  10. fidelity
  11. find
  12. incredibly
  13. information
  14. infrastructure
  15. leds
  16. light
  17. lights
  18. manner
  19. panels
  20. photo
  21. receive
  22. rich
  23. safe
  24. secure
  25. small
  26. solar
  27. special
  28. subtle
  29. ted
  30. time
  31. transmit
  32. transmitters
  33. transported
  34. wanted