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Convex and Concave Water Lenses

9,963 views

NASA Video

Video Language:

  • English

Caption Language:

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

Accent:

  • English

Speech Time:

87%
  • 6:03 / 6:54

Speech Rate:

  • 126 wpm - Conversational

Category:

  • Science & Technology

Tags :

Intro:

Video Vocabulary

section

/ˈsekSH(ə)n/

noun verb

any of more or less distinct parts into which something is or may be divided or from which it is made up. To divide something into smaller parts.

negative

/ˈneɡədiv/

adjective exclamation noun verb

In mathematics, being less than zero. no. word or statement expressing denial. refuse to accept.

millimeters

/ˈmiləˌmēdər/

noun other

one thousandth of metre. Units of measure, 1/1000 of a meter (symbol mm).

cantankerous

/kanˈtaNGk(ə)rəs/

adjective

bad-tempered, argumentative, and uncooperative.

squeeze

/skwēz/

noun verb

When there is not enough space for things/people. To force or threaten someone to give you something.

positive

/ˈpäzədiv/

adjective noun

Showing that a chemical is present in a test. positive quality.

spherical

/ˈsfirik(ə)l/

adjective

Round and shaped like a ball.

concave

/känˈkāv/

adjective

Hollow; curved inward.

plastic

/ˈplastik/

adjective noun

Being easily formed or shaped. Stiff but usually flexible man-made material.

special

/ˈspeSHəl/

adjective noun

better, greater, or otherwise different from what is usual. Heavily discounted sales item.

sliding

/ˈslīdiNG/

adjective verb

able to move smoothly along surface. To slip on something wet or slippery.

demonstrate

/ˈdemənˌstrāt/

verb

give practical exhibition of.

happens

/ˈhapən/

verb

take place.

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