Roger wrote: > Frank: Thanks for your reply. Sorry to so persistent, but could you elaborate > more about the physical phenomenon that allows SOME light "across the entire > visible spectrum" to be adsorbed? And it there any difference in appearance > between large and small particles when both fall outside the visible range so > that both appear colorless? Roger
Particles of any size in sufficient concentration will block (absorb) some visible light. Clouds are the best example, they are droplets of water that are generally larger in diameter than the wavelengh of visible light, but they absorb all light trying to pass through. They appear white. Same for a colloid. See the photo now available. frank key -- 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]>
