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![Liquid nitrogen poured onto students\](http://img.youtube.com/vi/zJwOTFm6DWg/2.jpg "Liquid nitrogen poured onto students\") |
Liquid nitrogen poured onto students' hand
Posted by: petersplim
Video duration: 209 seconds
Global video hits: 1514
Very cold liquid nitrogen vapourises immediately upon contact with warm object s like our skin. The vapour forms an insulating layer preventing more heat being lost from our warm palms. Caution: do not did your hand into liquid nitrogen for more than 1 second. Do visit our education website at www.PLsingapore.com
Related: coronation, cp, hand, liquid, nitrogen, petersplim, pl
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PL students munching liquid nitrogen-cooled biscuits
Posted by: petersplim
Video duration: 243 seconds
Global video hits: 171
When very cold liquid nitrogen cools the humid air inside our mouth,condensed droplets of water form. They come out through our nostril as "smoke"
Related: liquid, lucia, nitrogen, petersplim, pl, plenrich, plsingapore, tabitha, ulindra, zhexuan
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Physics Plasma Ball lighting up fluorescent tube
Posted by: petersplim
Video duration: 115 seconds
Global video hits: 0
The plasma ball is able to send electrons to and from a person's hand to light up a normal fluorescent tube. The potential difference (p.d.) is high enough.
Related: ball, education, fluorescent, peter, petersplim, physics, pl, plasma, plsingapore, science, tube
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