On Sun, Apr 17, 2016 at 1:40 PM, John <sesso...@earthlink.net> wrote: > I think you can add a little food dye to the water for cut flowers & > they'll suck the color up into the petals.
BINGO, John. I was just joking about trying to "gild the lilies." Actually, this is a science demonstration of evapotranspiration, which my wife often did when she taught environmental science, and was now doint to prepare for a demonstration for the science education nonprofit she works with now. http://water.usgs.gov/edu/watercycleevapotranspiration.html She put the flowers in water with food coloring, and the dye leaves colored lines on the edge of the petals, where the evaporation occurs most strongly. Dan Matyola http://www.pentaxphotogallery.com/danieljmatyola -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
