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

- called
- construct
- create
- compose
- premiere
- 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

- array
- called
- compose
- computationally
- construct
- costas
- create
- developed
- distinct
- engineer
- golomb
- hear
- impossible
- mapped
- mathematically
- mathematician
- mathematics
- means
- multiplication
- notes
- number
- pair
- perfect
- piano
- ping
- played
- premiere
- rhythm
- ruler
- starting
- structure
- time
- today
- world
- years