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How do we know the Milky Way is a spiral? | The History of the Milky Way

456,381 views

Dr. Becky

Video Language:

  • English

Caption Language:

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

Accent:

  • English (UK)

Speech Time:

98%
  • 16:28 / 16:38

Speech Rate:

  • 181 wpm - Fast

Category:

  • Science & Technology

Tags :

Intro:

Video Vocabulary

clearly

/ˈklirlē/

adverb

in clear manner.

question

/ˈkwesCH(ə)n/

noun verb

sentence worded or expressed so as to elicit information. To ask for or try to get information.

further

/ˈfərT͟Hər/

adjective adverb conjunction verb

Extra; in addition. at, to, or by greater distance. (Used to introduce an additional point); also. help or promote.

billions

/ˈbilyən/

noun number

1000 million. thousand million.

speculated

/ˈspekyəˌlāt/

verb

form theory or conjecture about subject without firm evidence.

century

/ˈsen(t)SH(ə)rē/

noun

Period of 100 years.

wearing

/ˈweriNG/

adjective verb

mentally or physically tiring. To have clothes, glasses, shoes etc. on your body.

background

/ˈbakˌɡround/

noun

A position not as important as the main event.

actually

/ˈak(t)SH(o͞o)əlē/

adverb

as truth or facts.

positions

/pəˈziSH(ə)n/

noun other verb

location of someone or something. People's opinions or attitudes about some things. To put in a particular location or direction.

relative

/ˈrelədiv/

adjective noun

Measured or considered in comparison to another. Members of the family.

forward

/ˈfôrwərd/

adjective adverb noun verb

Acting in a socially aggressive manner; pushy. towards front. attacking sports player. To send something to another address or person.

combined
verb

unite or merge.

suggest

/sə(ɡ)ˈjest/

verb

To mention something that could be done; propose.

diffused
verb

To cause something to spread through a large area.

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