[pure-silver] Re: PMK

HI,

Sorry about that, long time since I mixed oil and water.  :)

Bogdan

Sandor Mathe wrote:


>Take oil and add as much water as you want and if the
>mixture stands still, the oil will always land up at the bottom. 

The only mistake here is that the oil will be on the top!

The only thing people are debating is how long is long and how much agitation is agitation.

My high school chemistry class had two 30-40 cm tall narrow glass measuring cylinders on a high shelf. Both were filled with water.
One had a largish crystal of copper sulphate (greeninsh blue, soluble in water) dropped in the bottom, the other some other crystal (potasium permanganate maybe). They had been sitting there for more than year, never touched. The both crystals were disolving and slowly the colour was diffusing upwards. The copper sulphate had coloured the water only an inch or two up. The top was still perfectly clear. The other one was already almost completely uniform, though there was still a graduation in colour from light to dark at the bottom. An excellent demonstration of diffusion.


Sandor 

--
________________________________________________________________
  Bogdan Karasek
  Montréal, Québec            e-mail: bkarasek@xxxxxxxxxxxx
  Canada

                  "I photograph my reality"
__________________________________________________________________


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