Buzz Aldrin on moondust — Transcript

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1. 0:00i i think the behavior of the
2. 0:03the dust
3. 0:05uh was quite remarkable because it
4. 0:07really made uh
5. 0:10boot prints stand out as if uh you
6. 0:14really had some substance that all that
7. 0:17transferred from from just a dusty
8. 0:19surface to now uh a compact
9. 0:22uh like talcum powder
10. 0:25but it's not really when you get look at
11. 0:27it's not
12. 0:28uh it's not round like sand is because
13. 0:31there's no air to blow the dust and
14. 0:34round the edges
15. 0:36and and uh what it really is
16. 0:39is fractured glass
17. 0:41spheres
18. 0:43when a small particle strikes
19. 0:46dust that's been there it causes the
20. 0:49melting of what it hits and it splashes
21. 0:52out
22. 0:53and then it distributes around spheres
23. 0:57of glass that may fracture on impact but
24. 1:00certainly they're going to be hit by
25. 1:02other things later on
26. 1:04so the glass which is
27. 1:06melted rock
28. 1:08cooled rapidly
29. 1:11because it's small it'll cool rapidly
30. 1:14and that was a surprise to a lot of
31. 1:16people
32. 1:17but that wasn't something that we
33. 1:19realized right away it just behaved
34. 1:21differently when i would put my foot
35. 1:24down it would spray out
36. 1:26and it all landed in a semicircle
37. 1:30it doesn't do that here on earth it just
38. 1:33looks different because you've got an
39. 1:34atmosphere on here
40. 1:36and when when you put your foot down
41. 1:38what what sprinkles out is in a lot of
42. 1:41different directions and there's there's
43. 1:43air to change its uh direction
44. 1:46uh it just behaves differently
45. 1:50but the realization
46. 1:53of an intellect
47. 1:55that looks at something and then
48. 1:57realizes that it hasn't changed in
49. 2:00hundreds of thousands of years just a
50. 2:02little bit more dust has accumulated
51. 2:06if there was a big impact it would it
52. 2:08would be fresh looking but if it's just
53. 2:10kind of rolly like that you know that
54. 2:12that and and you can look and see
55. 2:15the horizon curving away
56. 2:18because it's so clear
57. 2:20and and uh you know uh
58. 2:23i shouldn't use that word uh
59. 2:26most people talk about a flat earth
60. 2:29society well you get in certain places
61. 2:31where it's flat and and you can convince
62. 2:34yourself that is flat but not on the
63. 2:36moon you can just see it
64. 2:39kind of
65. 2:40curving away
66. 2:42and you can imagine that you're on a
67. 2:45ball