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How Do Light Bulbs Work? | Earth Lab

290,061 views

BBC Earth Lab

Video Language:

  • English

Caption Language:

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

Accent:

  • English (UK)

Speech Time:

94%
  • 4:03 / 4:17

Speech Rate:

  • 166 wpm - Fast

Category:

  • Entertainment

Tags :

Intro:

Special thanks to The Free Dictionary for providing us with the information used in this web page

Video Vocabulary

pioneers

/ˌpīəˈnir/

pioneers
noun other verb

first person to explore new territory. People exploring new places or fields of endeavor. To take part in the development of something new.

minutes

/ˈminit/

minutes
noun other

sixty seconds. Records in writing what is said at a meeting.

usually

/ˈyo͞oZH(o͞o)əlē/

usually
adverb

Normally; regularly.

chemical

/ˈkemək(ə)l/

chemical
adjective noun

relating to chemistry. distinct compound or substance.

through

/THro͞o/

through
adjective adverb preposition

From one end or side of something to the other. expressing movement into one side and out of other side of opening etc.. Allowing you to pass between, or to.

mechanically

/məˈkanək(ə)lē/

mechanically
adjective adverb

In a machine-like manner; without feeling. By or like the use of machines; automatically.

photons

/ˈfōtän/

photons
noun other

particle representing quantum of light or other electromagnetic radiation. Quantum of electromagnetic radiation.

glowing

/ˈɡlōiNG/

glowing
adjective verb

Looking very healthy and contented. To emit a steady even light.

reaction

/rēˈakSH(ə)n/

reaction
noun

Feeling or action in response to something.

electricity

/əˌlekˈtrisədē/

electricity
noun

Energy generated positive and negative charges.

melting

/ˈmeltiNG/

melting
adjective noun verb

becoming liquefied by heat. action of liquefying. To disappear or to go away.

electrical

/əˈlektrək(ə)l/

electrical
adjective

Related or connected to electricity.

realise

/ˈrē(ə)ˌlīz/

realise
verb

To become aware of or understand mentally.

changed

/CHānj/

changed
verb

To exchange one set of clothes for another.

although

/ôlˈT͟Hō/

although
conjunction

Despite the fact that; however.

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