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The history of keeping time - Karen Mensing

197,224 views

TED-Ed

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

88%
  • 3:21 / 3:48

Speech Rate:

  • 163 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

predictable

/prəˈdiktəb(ə)l/

adjective

Capable of being guessed before it happens.

different

/ˈdif(ə)rənt/

adjective

Not of the same kind; unlike other things.

sundials

/ˈsənˌdī(ə)l/

noun other

instrument showing time by shadow of pointer cast by sun on to plate. Timepiece indicating time from the suns shadow.

arbitrary

/ˈärbəˌtrerē/

adjective

based on random choice or personal whim.

performance

/pərˈfôrməns/

noun

Activity done to entertain an audience.

archaeological

/ˌärkēəˈläjək(ə)l/

adjective

relating to archaeology.

limitations

/ˌliməˈtāSH(ə)n/

noun other

restriction. Acts of controlling or reducing the size of.

require

/rəˈkwī(ə)r/

verb

To demand that someone does something.

obelisks

/ˈäbəˌlisk/

noun other

tapering stone pillar. Tall column tapering and ending in a pyramid.

hourglass

/ˈou(ə)rˌɡlas/

noun

timing device with two connected glass bulbs containing sand that takes hour to pass from upper to lower bulb.

passage

/ˈpasij/

noun verb

movement through or past somewhere. subject microorganisms or cells to passage.

indicate

/ˈindəˌkāt/

verb

point out.

casting

/ˈkastiNG/

noun verb

object made by pouring molten metal or other material into mould. To be presented in a certain way.

measure

/ˈmeZHər/

noun verb

plan or course of action. To determine the value or importance of something.

remarkable

/rəˈmärkəb(ə)l/

adjective

worthy of attention.

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