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Radius of observable universe | Scale of the universe | Cosmology & Astronomy | Khan Academy

195,486 views

Khan Academy

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

97%
  • 16:17 / 16:39

Speech Rate:

  • 167 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

emphasize

/ˈemfəˌsīz/

verb

To stress the items that are important.

suspect
adjective noun verb

(Of a thing) causing doubt; suspicious. person thought to be guilty of crime or offence. To doubt or lack trust.

lifetime

/ˈlīfˌtīm/

noun

duration of person's life.

estimate
noun verb

Guess or calculation of cost, size or value. To guess or calculate the cost, size or value of.

unbelievable

/ˌənbəˈlēvəb(ə)l/

adjective

not able to be believed.

something

/ˈsəmˌTHiNG/

adverb pronoun

used for emphasis with following adjective functioning as adverb. thing that is unspecified or unknown.

current

/ˈkərənt/

adjective noun

Happening or being in the present time. moving water or air.

started

/stärt/

verb

begin or be reckoned from particular point in time or space.

amounts

/əˈmount/

noun other verb

quantity. (Values) added up to a certain figure. To add up to a certain figure.

implies

/imˈplī/

verb

indicate truth or existence of something by suggestion rather than explicit reference.

billion

/ˈbilyən/

noun number

Number 1,000,000,000. thousand million.

because

/bēˈkəz/

conjunction

for reason that.

especially

/iˈspeSHəlē/

adverb

More than usual; extremely.

appreciate

/əˈprēSHēˌāt/

verb

To rise in value (of property or belongings).

dealing

/ˈdēliNG/

noun verb

business relations or transactions. To buy and sell illegal drugs.

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