DONALD IN MATHMAGIC LAND

Taken from: https://www.youtube.com/watch?feature=player_embedded&v=cvstoNWxJKU

Here the subtitles:

1. 0:59 - 1:01
   Very strange.
   

   ¶
2. 1:13 - 1:17
   Huh, that's an odd-looking creature
3. 1:28 - 1:32
   What kind of a crazy place is this?
4. 1:46 - 1:49
   Well, what do you know? Square roots!
5. 1:51 - 2:00
   Pi is equal to 3.141592653589747 etc. etc. etc.
6. 2:02 - 2:05
   Hello?
7. 2:06 - 2:08
   Hello, Donald.
8. 2:08 - 2:11
   That's me! Where am I?!
9. 2:11 - 2:14
   Mathmagic land.
10. 2:14 - 2:17
    Mathmagic land? Never heard of it.
11. 2:18 - 2:21
    It's the land of great adventure.
12. 2:21 - 2:23
    Well, who are you?
13. 2:23 - 2:27
    I'm a spirit, the true spirit of adventure.
14. 2:27 - 2:30
    That's for me! What's next?
15. 2:30 - 2:33
    A journey through the wonderland of mathematics.
16. 2:33 - 2:37
    Mathematics? That's for eggheads!
17. 2:37 - 2:39
    Eggheads? Now hold on, Donald.
18. 2:39 - 2:42
    You like music don't you?
19. 2:42 - 2:43
    Yeah.
20. 2:43 - 2:46
    Well, without eggheads, there would be no music.
21. 2:46 - 2:47
    Bah.
22. 2:48 - 2:55
    Come on, let's go to ancient Greece, to the time of Pythagoras, the master egghead of them all.
23. 2:55 - 2:56
    Pythagoras?
24. 2:56 - 2:59
    The father of mathematics and music.
25. 2:59 - 3:00
    Mathematics and music?
26. 3:00 - 3:05
    Ahh, you'll find mathematics in the darndest places.
27. 3:05 - 3:06
    Watch
28. 3:07 - 3:09
    First we'll need a string
29. 3:09 - 3:10
    Hey!
30. 3:10 - 3:13
    Stretch it good and tight; pluck it!
31. 3:14 - 3:17
    Now divide in half. Pluck again.
32. 3:18 - 3:22
    You see? It's the same tone, one octave higher.
33. 3:22 - 3:25
    Now divide the next section.
34. 3:25 - 3:27
    And the next.
35. 3:27 - 3:32
    Pythagoras discovered the octave had a ratio of two to one.
36. 3:32 - 3:39
    With simple fractions, he got this [major triad]
37. 3:39 - 3:48
    And from this harmony in numbers, developed the musical scale of today. [major scale]

Taken from: http://www.amara.org/es/videos/MPL5usrEqq0a/en/18983/

ANSWER MULTIPLE CHOICE QUESTIONS:

1) ¿Dónde está Donald?
- En en planeta de las calculadoras
- En la tierra de las matemáticas
- A 3,14159265 Km de la Tierra

2) Según Donald, la matemática es para...
- Los intelectuales
- Los huevos
- Los locos

3) Sin matemática no habría ....
- Leyes
- Música  
- Ropa

4) ¿Quién es el padre de la matemática y la música?
- Thales de Mileto
- Eratóstenes de Cirene
- Pitágoras de Samos

5) ¿Qué proporción hay en una octava musical?
- 2 a 1
- 8 a 1
- 4/3