Date: Wed, 25 Feb 2004 00:06:13 GMT From: "James Sweet" <jamessweetnospamail.com> Subject: Re: Preventing/repairing dash cracks
"Bob" <uctraingNOSPAMnospamanet.com> wrote in message news:hvnn30tqtlpt6vic4qqrvb4ma19hncat3bnospamcom... > On Tue, 24 Feb 2004 17:37:35 +0000, Grunff <grunffnospam.com> wrote: > > >It's actually very much the other way round. Deep blue light is ~400nm. > >Beyond that you're into near UV. Near UV does pass through glass with > >reasonably low absorption. The cutoff point for ordinary silica glass is > >around 350-320nm. Anything shorter than that is completely absorbed. > > > >These shorter wavelengths contain a lot more energy than the longer > >wavelengths, and are therefore a lot more damaging to both skin and > >plastic. They are the ones that matter. > > > I'd have to dig out my notes to see if I concur with that. :-) > Oh joy, ok I didn't mean to start a big argument here, I just wanted to know how to preserve the existing condition of the dash.
 |
 |
 |
 |
 |
