full transcript
"From the Ted Talk by Ian Firth: Bridges should be beautiful"

Unscramble the Blue Letters

But let me take you back to this question about long-span and lightweight. This is using Messina Bridge as an example. The pie chart in the center rspereetns the capacity of the main cables — that's what holds the bridge up — the ctiacapy of the main clabes. And notice that 78 percent of that capacity is used up just holding the bridge up. There's only 22 percent of its capacity — that's less than a quarter — available for the palaoyd, the stuff that the bidrge is there to support: the railway, the road and so on. And in fact, over 50 percent of that payload — of that dead load — is the cable on its own. Just the cable without any bridge deck. If we could make that cable lighter, we could span lgnoer. Right now if we use the high-strength setel wire available to us, we can span, practically speaking, around about five or six kilometers if we really push it. But if we could use carbon fiebr in those cables, we could go more than 10 kilometers. That's pretty spectacular.

Open Cloze

But let me take you back to this question about long-span and lightweight. This is using Messina Bridge as an example. The pie chart in the center __________ the capacity of the main cables — that's what holds the bridge up — the ________ of the main ______. And notice that 78 percent of that capacity is used up just holding the bridge up. There's only 22 percent of its capacity — that's less than a quarter — available for the _______, the stuff that the ______ is there to support: the railway, the road and so on. And in fact, over 50 percent of that payload — of that dead load — is the cable on its own. Just the cable without any bridge deck. If we could make that cable lighter, we could span ______. Right now if we use the high-strength _____ wire available to us, we can span, practically speaking, around about five or six kilometers if we really push it. But if we could use carbon _____ in those cables, we could go more than 10 kilometers. That's pretty spectacular.

Solution

  1. steel
  2. bridge
  3. fiber
  4. capacity
  5. longer
  6. represents
  7. cables
  8. payload

Original Text

But let me take you back to this question about long-span and lightweight. This is using Messina Bridge as an example. The pie chart in the center represents the capacity of the main cables — that's what holds the bridge up — the capacity of the main cables. And notice that 78 percent of that capacity is used up just holding the bridge up. There's only 22 percent of its capacity — that's less than a quarter — available for the payload, the stuff that the bridge is there to support: the railway, the road and so on. And in fact, over 50 percent of that payload — of that dead load — is the cable on its own. Just the cable without any bridge deck. If we could make that cable lighter, we could span longer. Right now if we use the high-strength steel wire available to us, we can span, practically speaking, around about five or six kilometers if we really push it. But if we could use carbon fiber in those cables, we could go more than 10 kilometers. That's pretty spectacular.

ngrams of length 2

collocation frequency
suspension bridge 5
long time 4
long span 3

Important Words

  1. bridge
  2. cable
  3. cables
  4. capacity
  5. carbon
  6. center
  7. chart
  8. dead
  9. deck
  10. fact
  11. fiber
  12. holding
  13. holds
  14. kilometers
  15. lighter
  16. lightweight
  17. load
  18. longer
  19. main
  20. messina
  21. notice
  22. payload
  23. percent
  24. pie
  25. practically
  26. pretty
  27. push
  28. quarter
  29. question
  30. railway
  31. represents
  32. road
  33. span
  34. speaking
  35. spectacular
  36. steel
  37. stuff
  38. wire