full transcript

From the Ted Talk by Nick Sears: Demo The Orb

Unscramble the Blue Letters


Today we don't need one million light bulbs to create a spherical display. We can use LEDs. LEDs are smaller, they're cheaper, they're longer lasting, they're more efficient. Most importantly for this, they're festar. And this speed, combined with today's high-performance micro-controllers, allows us to actually smlauite, in this piece, over 17,000 LEDs — using just 64. And the way this happens is through the pemnnoohen of persistence of vision. But as this ring rotates at about 1,700 rpm — that's 28 times per second. The equator's speed is actually about 60 miles per hour. There are four on-board micro-controllers that, each time this ring rotates it, as it passes the rear of the dspilay, it picks up a position sinagl. And from that, the on-board micro-controllers can erptxolatae the position of the ring at all points around the revolution and display arbitrary bitmap ieagms and animations.

Open Cloze


Today we don't need one million light bulbs to create a spherical display. We can use LEDs. LEDs are smaller, they're cheaper, they're longer lasting, they're more efficient. Most importantly for this, they're ______. And this speed, combined with today's high-performance micro-controllers, allows us to actually ________, in this piece, over 17,000 LEDs — using just 64. And the way this happens is through the __________ of persistence of vision. But as this ring rotates at about 1,700 rpm — that's 28 times per second. The equator's speed is actually about 60 miles per hour. There are four on-board micro-controllers that, each time this ring rotates it, as it passes the rear of the _______, it picks up a position ______. And from that, the on-board micro-controllers can ___________ the position of the ring at all points around the revolution and display arbitrary bitmap ______ and animations.

Solution


  1. images
  2. faster
  3. extrapolate
  4. phenomenon
  5. signal
  6. display
  7. simulate

Original Text


Today we don't need one million light bulbs to create a spherical display. We can use LEDs. LEDs are smaller, they're cheaper, they're longer lasting, they're more efficient. Most importantly for this, they're faster. And this speed, combined with today's high-performance micro-controllers, allows us to actually simulate, in this piece, over 17,000 LEDs — using just 64. And the way this happens is through the phenomenon of persistence of vision. But as this ring rotates at about 1,700 rpm — that's 28 times per second. The equator's speed is actually about 60 miles per hour. There are four on-board micro-controllers that, each time this ring rotates it, as it passes the rear of the display, it picks up a position signal. And from that, the on-board micro-controllers can extrapolate the position of the ring at all points around the revolution and display arbitrary bitmap images and animations.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
ring rotates 2


Important Words


  1. animations
  2. arbitrary
  3. bitmap
  4. bulbs
  5. cheaper
  6. combined
  7. create
  8. display
  9. efficient
  10. extrapolate
  11. faster
  12. hour
  13. images
  14. importantly
  15. lasting
  16. leds
  17. light
  18. longer
  19. miles
  20. million
  21. passes
  22. persistence
  23. phenomenon
  24. picks
  25. piece
  26. points
  27. position
  28. rear
  29. revolution
  30. ring
  31. rotates
  32. rpm
  33. signal
  34. simulate
  35. smaller
  36. speed
  37. spherical
  38. time
  39. times
  40. today
  41. vision