full transcript

From the Ted Talk by Gary Greenberg: The beautiful nano details of our world

Unscramble the Blue Letters

Now something's interesting here. This looks very different than any sand on Earth that I've ever seen, and I've seen a lot of sand on Earth, believe me. (latehgur) Look at this hole in the middle. That hole was caused by a micrometeorite hitting the Moon. Now, the Moon has no atmosphere, so micrometeorites come in clouniunsoty, and the whole srucafe of the Moon is cevored with powder now, because for four billion years it's been breomdabd by micrometeorites, and when micrometeorites come in at about 20 to 60,000 miles an hour, they vaporize on contact. And you can see here that that is — that's sort of vaporized, and that material is holding this little clmup of little sand grains together. This is a very small grain of sand, this whole thing. And that's cleald a ring agglutinate. And many of the grains of sand on the Moon look like that, and you'd never find that on Earth. Most of the sand on the Moon, especially — and you know when you look at the Moon, there's the dark areas and the light areas. The dark areas are lava fowls. They're basaltic lava flows, and that's what this sand looks like, very sliaimr to the sand that you would see in hlkalaaea. Other sdans, when these micrometeorites come in, they vaporize and they make these fountains, these microscopic ftanuions that go up into the — I was going to say "up into the air," but there is no air — goes sort of up, and these microscopic glsas beads are formed instantly, and they harden, and by the time they fall down back to the surface of the Moon, they have these beautiful colored glass spherules. And these are actually microscopic; you need a mosrcpcioe to see these.

Open Cloze

Now something's interesting here. This looks very different than any sand on Earth that I've ever seen, and I've seen a lot of sand on Earth, believe me. (________) Look at this hole in the middle. That hole was caused by a micrometeorite hitting the Moon. Now, the Moon has no atmosphere, so micrometeorites come in ____________, and the whole _______ of the Moon is _______ with powder now, because for four billion years it's been _________ by micrometeorites, and when micrometeorites come in at about 20 to 60,000 miles an hour, they vaporize on contact. And you can see here that that is — that's sort of vaporized, and that material is holding this little _____ of little sand grains together. This is a very small grain of sand, this whole thing. And that's ______ a ring agglutinate. And many of the grains of sand on the Moon look like that, and you'd never find that on Earth. Most of the sand on the Moon, especially — and you know when you look at the Moon, there's the dark areas and the light areas. The dark areas are lava _____. They're basaltic lava flows, and that's what this sand looks like, very _______ to the sand that you would see in _________. Other _____, when these micrometeorites come in, they vaporize and they make these fountains, these microscopic _________ that go up into the — I was going to say "up into the air," but there is no air — goes sort of up, and these microscopic _____ beads are formed instantly, and they harden, and by the time they fall down back to the surface of the Moon, they have these beautiful colored glass spherules. And these are actually microscopic; you need a __________ to see these.

Solution

  1. similar
  2. microscope
  3. surface
  4. sands
  5. laughter
  6. called
  7. glass
  8. flows
  9. fountains
  10. covered
  11. clump
  12. bombarded
  13. continuously
  14. haleakala

Original Text

Now something's interesting here. This looks very different than any sand on Earth that I've ever seen, and I've seen a lot of sand on Earth, believe me. (Laughter) Look at this hole in the middle. That hole was caused by a micrometeorite hitting the Moon. Now, the Moon has no atmosphere, so micrometeorites come in continuously, and the whole surface of the Moon is covered with powder now, because for four billion years it's been bombarded by micrometeorites, and when micrometeorites come in at about 20 to 60,000 miles an hour, they vaporize on contact. And you can see here that that is — that's sort of vaporized, and that material is holding this little clump of little sand grains together. This is a very small grain of sand, this whole thing. And that's called a ring agglutinate. And many of the grains of sand on the Moon look like that, and you'd never find that on Earth. Most of the sand on the Moon, especially — and you know when you look at the Moon, there's the dark areas and the light areas. The dark areas are lava flows. They're basaltic lava flows, and that's what this sand looks like, very similar to the sand that you would see in Haleakala. Other sands, when these micrometeorites come in, they vaporize and they make these fountains, these microscopic fountains that go up into the — I was going to say "up into the air," but there is no air — goes sort of up, and these microscopic glass beads are formed instantly, and they harden, and by the time they fall down back to the surface of the Moon, they have these beautiful colored glass spherules. And these are actually microscopic; you need a microscope to see these.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
micro world 3
human hair 3
bit closer 2
living cells 2
individual atoms 2
billion years 2
dark areas 2

Important Words

  1. agglutinate
  2. air
  3. areas
  4. atmosphere
  5. basaltic
  6. beads
  7. beautiful
  8. billion
  9. bombarded
  10. called
  11. caused
  12. clump
  13. colored
  14. contact
  15. continuously
  16. covered
  17. dark
  18. earth
  19. fall
  20. find
  21. flows
  22. formed
  23. fountains
  24. glass
  25. grain
  26. grains
  27. haleakala
  28. harden
  29. hitting
  30. holding
  31. hole
  32. hour
  33. instantly
  34. interesting
  35. laughter
  36. lava
  37. light
  38. lot
  39. material
  40. micrometeorite
  41. micrometeorites
  42. microscope
  43. microscopic
  44. middle
  45. miles
  46. moon
  47. powder
  48. ring
  49. sand
  50. sands
  51. similar
  52. small
  53. sort
  54. spherules
  55. surface
  56. time
  57. vaporize
  58. vaporized
  59. years