4:45
Posted 31 July 2013
Lava lamp
or
продолжительность: 4:45
Posted on 31 July 2013
Description
This video explains the working principle of a lava lamp. The narrator speaks quite clearly and at moderate pace, which will help beginners better comprehend his speech.
рубрики:
Science
Recommended words
to agitate - 煽る
a buoyancy - 浮力
to float - 浮く
a surface - 表面

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