Comments on: Demonstration of surface tension http://www.andybrain.com/sciencelab/2008/01/16/demonstration-of-surface-tension/ Science Experiments for Kids, Parents and Teachers Sun, 15 Nov 2009 09:43:07 -0500 http://wordpress.org/?v=2.8.5 hourly 1 By: David Murphy http://www.andybrain.com/sciencelab/2008/01/16/demonstration-of-surface-tension/comment-page-1/#comment-16 David Murphy Fri, 25 Jan 2008 15:24:36 +0000 http://www.andybrain.com/sciencelab/2008/01/16/demonstration-of-surface-tension/#comment-16 This is a version of the old "Magic Finger" trick, which I learned as follows: Sprinkle pepper all over the surface of a saucer of water (just a substitute for the confetti). Before the trick, spread a drop of the liquid soap over one fingertip. If demonstrating as a magic trick, have one bystander stick a finger into the bowl and note that nothing happens. Then, stick your "magic finger" into the water and watch the pepper fly to the sides. This is a version of the old “Magic Finger” trick, which I learned as follows:

Sprinkle pepper all over the surface of a saucer of water (just a substitute for the confetti). Before the trick, spread a drop of the liquid soap over one fingertip. If demonstrating as a magic trick, have one bystander stick a finger into the bowl and note that nothing happens. Then, stick your “magic finger” into the water and watch the pepper fly to the sides.

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