> In which case you would expect white balls. Black ones would be expected to > heat the water up. > I've heard that the additive to many plastics that make them UV-stable is black. A friend of mine just bought a used modular plastic "dock" for their house on the lake. The friggin' thing is impossible to walk on in the sunlight because it get so hot (black for UV reasons).
-Cory ************************************************************************* * Cory Papenfuss, Ph.D. Electrical Engineering, PPSEL-IA * * Research Associate, Vibrations and Acoustics Laboratory * * Mechanical Engineering * * Virginia Polytechnic Institute and State University * ************************************************************************* -- 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.