By Levels

Library

EXP: 08888
HITS: {{lyricTraining.hits}}888
STREAKS: {{lyricTraining.streaks}}888
TIME: {{lyricTraining.timeout / 1000}}88
{{word.word}}

{{cue.translated_text}}

{{lyricTraining.hint}}

x{{playblackSpeed.toFixed(2)}}

Loading ..

Not Found

{{annotation.word}} ({{annotation.pos_simplify}})

/{{annotation.phonetic}}/

{{annotation.translation}}

{{annotation.name}}

{{annotation.sub_type}}

{{annotation.definition}}
Back

Games & Quizzes

Training Mode - Typing
Fill the gaps to the Lyric - Best method
Training Mode - Picking
Pick the correct word to fill in the gap
{{game.name}}
{{game.description}} Requires {{game.required_annotions}} vocabulary annotations

Congratulations! You gained {{totalPoint}} XP

You may need to watch a part of the video to unlock quizzes

Don't forget to Sign In to save your points

Repeat Skip ({{game.question_index}}/{{game.questions.length}})
{{part}}
Repeat Skip ({{game.question_index + 1}}/{{game.questions.length}})
{{choice.text}}
{{choice.text}}

Make correct pairs from two columns

{{lyricTraining.finished && lyricTraining.timed_out ? 'Timed Out' : 'Challenge Accomplished'}}

PERFECT HITS {{lyricTraining.stats.PERFECT_HITS}} +{{lyricTraining.stats.PERFECT_HITS * 20}}
HITS {{lyricTraining.stats.HITS}} +{{lyricTraining.stats.HITS * 10}}
LONGEST STREAK {{lyricTraining.stats.LONGEST_STREAKS}} +{{lyricTraining.stats.LONGEST_STREAKS * 10}}
REMAINING TIME {{lyricTraining.timeout / 1000}}s +{{lyricTraining.timeout / 1000}}
TOTAL +{{lyricTraining.exp}}
{{word.word}} - {{dictionary.definition[0].phonetic || ("/" + dictionary.phonetics +"/")}} - {{word.translation}}

We couldn't find definitions for the word you were looking for.
Or maybe the current language is not supported

{{simpleDefinition.pos}}

{{simpleDefinition.def}}

{{word.word}}

Sentences & parts of speech:

  • {{tag.normal}} {{tag.pos_name}}

  • {{c.startTime | duration}}


    {{c.translated_text}}

All {{pos.pos_simplify}}
{{a.word || a.name}}
/{{a.phonetic}}/
{{a.type || a.sub_type}}
{{a.translation}} 		{{a.definition}}

Index of Refraction

11,448 views

Laramy-K Optical

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

88%
  • 10:57 / 12:19

Speech Rate:

  • 148 wpm - Conversational

Category:

  • Education

Tags :

Intro:

Video Vocabulary

talking

/ˈtôkiNG/

adjective noun verb

engaging in speech. action of talking. To say things or ideas to someone with words.

separate
adjective noun verb

Being different from or unrelated to another. individual items of clothing suitable for wearing in different combinations. To divide two things by being in between them.

refraction

/rəˈfrakSH(ə)n/

noun

Light changing direction through glass or water.

minutes

/ˈminit/

noun other

sixty seconds. Notes taken at meetings to record what was said.

travels

/ˈtravəl/

noun other verb

action of travelling. Journeys to other places, often for pleasure. make journey.

greater

/ɡrāt/

adjective

of above average extent.

thought

/THôt/

noun verb

Ideas of a particular group. To have an idea, opinion or belief about something.

welcome - welcome

/ˈwelkəm/

adjective exclamation noun verb

Being what was wanted or needed. used to greet someone in polite or friendly way. instance or manner of greeting someone. greet someone arriving in polite or friendly way.

working

/ˈwərkiNG/

adjective noun verb

having paid employment. action of doing work. To make an effort to do something.

training

/ˈtrāniNG/

noun verb

action of teaching person or animal particular skill or type of behaviour. To point a certain way or toward something.

through

/THro͞o/

adjective adverb preposition

continuing or valid to final destination. From the beginning of something until the end. Over, in, across an entire thing or place.

indicate

/ˈindəˌkāt/

verb

point out.

Q
W
E
R
T
Y
U
I
O
P
A
S
D
F
G
H
J
K
L
Z
X
C
V
B
N
M