SC - What happened?

[CorwynWdwd at aol.com]

Purple cabbage is an indicator, meaning it's somewhat like litmus paper in 
that the color of the juice is altered by the acidity or (Is there a better 
term?) baseness (alkalinity?) of whatever it's added to. Saw it once on one 
of those kiddie science shows.

As to why the color kept shifting... hmmmm... maybe the vinegar didn't 
actually go into solution for some reason?? 

Corwyn
In a message dated 5/13/2000 4:48:41 PM Eastern Daylight Time, 
Marian.Deborah.Rosenberg at washcoll.edu writes:

> 2.  The color.  Pink.  Or purple.  Or brown.  Or bright purple.  It kept
>  changing.  This didn't seem to have much to do with the changing strength 
of 
> the
>  vinegar flavor but I wasn't keeping tabs.  It seemed to mostly be getting
>  darkerbrown as time went on but then abruptly went back to a lovely shade 
of
>  purple and stayed that way.