full transcript
#### From the Ted Talk by Clifford Stoll: The call to learn

## Unscramble the Blue Letters

To measure the wavelength, all I need to do is measure the dsaintce from here — one full wave — over to here. From here to here is the wavelength of sound. So, I'll put a measuring tape here, measuring tape here, move it back over to here. I've moved the microphone 20 centimeters. 0.2 meters from here, back to here, 20 crtneeetmis. OK, let's go back to Mr. Elmo. And we'll say the frequency is 1.76 kilohertz, or 1760. The wavelength was 0.2 meerts. Let's fgruie out what this is. (Laughter) (Applause) 1.76 times 0.2 over here is 352 meters per second. If you look it up in the book, it's really 343. But, here with kludgy material, and lousy dirnk — we've been able to measure the speed of snoud to — not bad. Pretty good.
## Open Cloze

To measure the wavelength, all I need to do is measure the **________** from here — one full wave — over to here. From here to here is the wavelength of sound. So, I'll put a measuring tape here, measuring tape here, move it back over to here. I've moved the microphone 20 centimeters. 0.2 meters from here, back to here, 20 **___________**. OK, let's go back to Mr. Elmo. And we'll say the frequency is 1.76 kilohertz, or 1760. The wavelength was 0.2 **______**. Let's **______** out what this is. (Laughter) (Applause) 1.76 times 0.2 over here is 352 meters per second. If you look it up in the book, it's really 343. But, here with kludgy material, and lousy **_____** — we've been able to measure the speed of **_____** to — not bad. Pretty good.
## Solution

- distance
- figure
- centimeters
- sound
- drink
- meters

## Original Text

To measure the wavelength, all I need to do is measure the distance from here — one full wave — over to here. From here to here is the wavelength of sound. So, I'll put a measuring tape here, measuring tape here, move it back over to here. I've moved the microphone 20 centimeters. 0.2 meters from here, back to here, 20 centimeters. OK, let's go back to Mr. Elmo. And we'll say the frequency is 1.76 kilohertz, or 1760. The wavelength was 0.2 meters. Let's figure out what this is. (Laughter) (Applause) 1.76 times 0.2 over here is 352 meters per second. If you look it up in the book, it's really 343. But, here with kludgy material, and lousy drink — we've been able to measure the speed of sound to — not bad. Pretty good.
## Frequently Occurring Word Combinations

### ngrams of length 2

collocation |
frequency |

electronic music |
3 |

love mobius |
2 |

mobius loops |
2 |

klein bottles |
2 |

klein bottle |
2 |

suny buffalo |
2 |

robert moog |
2 |

frequency times |
2 |

measuring tape |
2 |

tear gas |
2 |

hayes hall |
2 |

## Important Words

- applause
- bad
- book
- centimeters
- distance
- drink
- elmo
- figure
- frequency
- full
- good
- kilohertz
- kludgy
- laughter
- lousy
- material
- measure
- measuring
- meters
- microphone
- move
- moved
- pretty
- put
- sound
- speed
- tape
- times
- wave
- wavelength