full transcript

From the Ted Talk by Patricia Burchat: Shedding light on dark matter

Unscramble the Blue Letters


The sritltang answer to this question, OK, from these experiments, was that space is exindpnag at a faster rate today than it was a few biiolln years ago, OK. So the expansion of space is actually speeding up. This was a completely surprising result. There is no praviesuse theoretical agrnmeut for why this should happen, OK. No one was pdtncireig ahead of time this is what's going to be found. It was the opposite of what was expected. So we need something to be able to explain that. Now it turns out, in the mathematics, you can put it in as a term that's an energy, but it's a completely different type of energy from anything we've ever seen before. We call it dark energy, and it has this efceft of causing space to expand. But we don't have a good motivation for putting it in there at this point, OK. So it's really unexplained as to why we need to put it in.

Open Cloze


The _________ answer to this question, OK, from these experiments, was that space is _________ at a faster rate today than it was a few _______ years ago, OK. So the expansion of space is actually speeding up. This was a completely surprising result. There is no __________ theoretical ________ for why this should happen, OK. No one was __________ ahead of time this is what's going to be found. It was the opposite of what was expected. So we need something to be able to explain that. Now it turns out, in the mathematics, you can put it in as a term that's an energy, but it's a completely different type of energy from anything we've ever seen before. We call it dark energy, and it has this ______ of causing space to expand. But we don't have a good motivation for putting it in there at this point, OK. So it's really unexplained as to why we need to put it in.

Solution


  1. expanding
  2. billion
  3. predicting
  4. startling
  5. argument
  6. persuasive
  7. effect

Original Text


The startling answer to this question, OK, from these experiments, was that space is expanding at a faster rate today than it was a few billion years ago, OK. So the expansion of space is actually speeding up. This was a completely surprising result. There is no persuasive theoretical argument for why this should happen, OK. No one was predicting ahead of time this is what's going to be found. It was the opposite of what was expected. So we need something to be able to explain that. Now it turns out, in the mathematics, you can put it in as a term that's an energy, but it's a completely different type of energy from anything we've ever seen before. We call it dark energy, and it has this effect of causing space to expand. But we don't have a good motivation for putting it in there at this point, OK. So it's really unexplained as to why we need to put it in.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
dark matter 24
dark energy 7
big questions 3
gravitational effects 3
gravitational lensing 3
largest scale 2
ordinary matter 2
electromagnetic spectrum 2
einstein predicted 2
einstein ring 2
graph paper 2
hubble space 2
space telescope 2
gravitationally attracting 2
stephen hawking 2
billion years 2
gravitational attraction 2
mathematically consistent 2
large hadron 2

ngrams of length 3

collocation frequency
hubble space telescope 2

Important Words


  1. answer
  2. argument
  3. billion
  4. call
  5. causing
  6. completely
  7. dark
  8. effect
  9. energy
  10. expand
  11. expanding
  12. expansion
  13. expected
  14. experiments
  15. explain
  16. faster
  17. good
  18. happen
  19. mathematics
  20. motivation
  21. persuasive
  22. point
  23. predicting
  24. put
  25. putting
  26. question
  27. rate
  28. result
  29. space
  30. speeding
  31. startling
  32. surprising
  33. term
  34. theoretical
  35. time
  36. today
  37. turns
  38. type
  39. unexplained
  40. years