[email protected] wrote: > In a message dated 3/27/01 0:38:19 AM EST, [email protected] writes: > > << The milky appearance also occurs when the concentration of particles is > high and the particle size is very small. > > > frank key > >> > > Frank: How do you explain the milky appearance for very small particles, or > very large ones, for that matter, if, as Marshall says, light from the > visible part of the spectrum of not adsorbed in either case? Roger
Scattering, basically lots of tyndall. Same reason that dilute milk appears milky, scattering off of the minute fat particles. Scattering and absorption are two entirely different and unrelated phenomea. The first has little color (it can apear to give a blue cast due to the increased scattering of shorter wavelengths, apparent in dilute milk, water the the sky), and the second gives the entire liquid the complementary color if in the visible spectrum. The first will appear milky, the second clear. Marshall Marshall -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
