Nah Hans Not mine at all. Instead its more like, "That's a very good question and one that is worthy of your researching. Let me know what you learn in your research." You would be amazed what you learn when you turn a student loose to look something up. Funny thing is they are more proud after the fact that they did it themselves and you learn something too. --- On Wed, 12/31/08, Hans Klemmer <hansklemmer@xxxxxxx> wrote: > From: Hans Klemmer <hansklemmer@xxxxxxx> > Subject: Re: Why does light pass through a lens? > To: "List for Photo/Imaging Educators - Professionals - Students" <photoforum@xxxxxxxxxxxxxxxxxx> > Date: Wednesday, December 31, 2008, 10:02 AM > Isn't that the usual answer we give students when > we're stumped? > > Hans > > > On Dec 31, 2008, at 10:57 AM, dave6134@xxxxxxxxxxx wrote: > > > > > > > > > That is easy. Because it can. If you want to know how, > well that is very complicated. Don't worry about it.