blue sky demo Exploratorium Science Snacks

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Hello ESDG

Tried the blue sky demo with the water and milk and flashlight
http://www.exploratorium.edu/snacks/blue_sky.html

I have a question. I simply put regular milk into the water rather
than powdered. The water looks very pale blue from the side but the
yellow light does appear at the other side of the container. There is
no clear beam of light through the water but the colours do seem to
produce the desired effect. Would powdered milk make a difference?

-- 
Regards,
Dr. T. L. Simmons
malangthon@xtra.co.nz

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