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}}

Who cares about topology? (Inscribed rectangle problem)

2,784,280 views

3Blue1Brown

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

103%
  • 17:06 / 16:29

Speech Rate:

  • 184 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

construction

/kənˈstrəkSH(ə)n/

noun

action of building.

several

/ˈsev(ə)rəl/

adjective determiner pronoun

Many of. more than two but not many. More than two but not a large amount.

imaginations

/iˌmajəˈnāSH(ə)n/

noun other

faculty or action of forming new ideas. Abilities to create new ideas and mental images.

properties

/ˈpräpərdē/

noun other

possessions collectively. Particular qualities that people or some things have.

topology

/təˈpäləjē/

noun

Natural features of an area of land.

surprising

/sərˈprīziNG/

adjective verb

Making you feel a bit shocked because unexpected. To do something that another person didn't expect.

problem

/ˈpräbləm/

adjective noun

Causing trouble. Something difficult to deal with or causes trouble.

solution

/səˈlo͞oSH(ə)n/

noun

means of solving problem or dealing with difficult situation.

occasionally

/əˈkāZH(ə)nəlē/

adverb

at infrequent or irregular intervals.

actually

/ˈak(t)SH(o͞o)əlē/

adverb

Used to add new (often different) information.

excited

/ikˈsīdəd/

adjective verb

Happy, interested or eager; enthusiastic. To make something or someone become more active.

twisting

/twist/

adjective verb

Turning in a curving direction e.g. road or path. form into bent, curling, or distorted shape.

started

/stärt/

verb

To do, be or happen for the first time; begin.

building

/ˈbildiNG/

noun verb

A structure with a roof and walls, e.g. a house. To establish e.g. a reputation, over time.

surface

/ˈsərfəs/

adjective noun verb

relating to or found on surface of something. outside part or uppermost layer of something. To come to the top of something; emerge.

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