full transcript
"From the Ted Talk by Scott Rickard: The beautiful math behind the world's ugliest music"

#### Unscramble the Blue Letters

Today, we're going to hear the world primreee of the perfect ping. This is an 88-by-88-sized Costas array, mapped to notes on the piano, played using a structure caelld a Golomb ruler for the rhythm, which means the starting time of each pair of notes is distinct as well. This is mathematically almost impossible. Actually, computationally, it would be impossible to cratee. Because of the mathematics that was developed 200 years ago, through another mathematician recently and an engineer, we were able to actually coomspe this, or cnrstouct this, using mplituolaiticn by the number three.

#### Open Cloze

Today, we're going to hear the world ________ of the perfect ping. This is an 88-by-88-sized Costas array, mapped to notes on the piano, played using a structure ______ a Golomb ruler for the rhythm, which means the starting time of each pair of notes is distinct as well. This is mathematically almost impossible. Actually, computationally, it would be impossible to ______. Because of the mathematics that was developed 200 years ago, through another mathematician recently and an engineer, we were able to actually _______ this, or _________ this, using ______________ by the number three.

#### Solution

1. called
2. construct
3. create
4. compose
5. premiere
6. multiplication

#### Original Text

Today, we're going to hear the world premiere of the perfect ping. This is an 88-by-88-sized Costas array, mapped to notes on the piano, played using a structure called a Golomb ruler for the rhythm, which means the starting time of each pair of notes is distinct as well. This is mathematically almost impossible. Actually, computationally, it would be impossible to create. Because of the mathematics that was developed 200 years ago, through another mathematician recently and an engineer, we were able to actually compose this, or construct this, using multiplication by the number three.

#### ngrams of length 2

collocation frequency
pattern free 7
sonar ping 4
solomon golomb 4
free music 3
costas array 3
world premiere 3

#### Important Words

1. array
2. called
3. compose
4. computationally
5. construct
6. costas
7. create
8. developed
9. distinct
10. engineer
11. golomb
12. hear
13. impossible
14. mapped
15. mathematically
16. mathematician
17. mathematics
18. means
19. multiplication
20. notes
21. number
22. pair
23. perfect
24. piano
25. ping
26. played
27. premiere
28. rhythm
29. ruler
30. starting
31. structure
32. time
33. today
34. world
35. years