Re: ink spreading through paper

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From: Marco Isopi
Date: Mon, 06 Apr 1992 09:12

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delliott@cec2.wustl.edu (Dave Elliott) writes:

>In article <1992Apr3.233943.5902@athena.mit.edu> mlevin@forte.cs.tufts.edu writes:
>>
>>     I just noticed something neat. If you get a piece of white
>>drawing paper, and wet it with water (moisten, not soak), and put a
>>drop of ink at the top, and hold it vertically, it runs down and sinks
>>into the paper forming what looks to be a very fractal form. Does
>>anyone know if this has been looked at, whether there are any computer
>>simulations of this process, etc.? Please email me at
>>mlevin@presto.cs.tufts.edu if you know anything about this.
>>
>>Mike Levin

>This can be looked up under the topic "Paper Chromatography" in the
>Chemistry (particularly Biological Chemistry) literature. 

>There are probably simulations of the process, since chromatography is
>an important method of separating tiny quantities of material for assay
>or production.
>                                David L. Elliott

Also try to look up Invasion Percolation

Marco
isopi@acf9.nyu.edu

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From: isopi@acf9.nyu.edu (Marco Isopi)
Subject: Re: ink spreading through paper
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Date: Mon, 6 Apr 1992 09:12:49 GMT
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