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Telescope Basics 5 (of 6): Learn the basics about barlow lenses for telescopes

353,723 views

Eyes on the Sky

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

89%
  • 4:49 / 5:24

Speech Rate:

  • 156 wpm - Fast

Category:

  • Science & Technology

Tags :

Intro:

Video Vocabulary

telescope

/ˈteləˌskōp/

noun verb

optical instrument designed to make distant objects appear nearer, containing arrangement of lenses, or of curved mirrors and lenses. To shorten by compacting tubes inside each other.

following

/ˈfälōiNG/

adjective noun preposition verb

Next; the one after this. body of supporters or admirers. coming after or as a result. To believe a set of values or a moral teacher.

expensive

/ikˈspensiv/

adjective

Costing a lot of money.

objective

/əbˈjektiv/

adjective noun

Being real, rather than simply being an idea. thing aimed at.

produces
verb

To grow something naturally.

stargazing

/ˈstärˌɡāz/

noun verb

Observation of the stars. observe stars.

between

/bəˈtwēn/

adverb preposition

in space separating things. at, into, or across space separating things.

explain

/ikˈsplān/

verb

To make clear or easy to understand by describing.

greater

/ɡrāt/

adjective

of above average extent.

existing

/iɡˈzistiNG/

adjective verb

in existence or operation at current time. To be present, alive or real.

eyepiece

/ˈīˌpēs/

noun

lens or group of lenses that is closest to eye in microscope, telescope, or other optical instrument.

placing

/plās/

verb

To put someone in a particular type of situation.

increases
noun other verb

rise in size, amount, or degree of something. Amount something grows by. become or make greater in size or degree.

shorter

/SHôrt/

adjective

measuring small distance from end to end.

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