On Mon, 25 Oct 1999 [EMAIL PROTECTED] wrote:
> Discussion on issues brings up a question.
>
> We're looking into a flatscreen monitor for our next monitor purchase - for
> a number of reasons, one of which is that my doctor thinks long exposure to
> EMR may be keeping me unwell. So.
>
> 1. Anyone happen to know the EMR levels of a flatscreen vs a standard monitor?
>
It's been forever since my last E&M course, and almost as long since I
heard any seminars on liquid crystals, but I would *have* to imagine that
the EMR off of a flat screen would be orders of magnitude less than that
from a CRT. Mostly because of the way the pixels are twiddled - I would
imagine that a Cathode Ray Tube shooting electrons at your face would
have to exhibit more intense EMR than a screen which uses a current to
change the opacity of liquid crystal.
Here's a site I found searching on go2net for liquid crystals and EMR. A
quote about VDTs from the page is as follows:
Video Data Terminals (VDT's)
It's easy to redesign a workplace in which VDT's can be used safely.
One organization, The Fund for the city of New York, changed its
office layout so that employees sit an arms length, 28 to 30 inches
from their VDT's. They found that electromagnetic radiation drops
off sharply at that distance. But radiation from VDT's doesn't come
from the screen, it comes out the back and sides as well. So the
organization does not allow anyone to sit within 40 inches of
another employee's VDT. Even safer: Laptop computers use safe liquid
crystal displays (LCD's) that do not give off hazardous magnetic
fields.
The address is http://www.thuntek.net/sumeria/health/em.html - I don't
know how scientific/paranoid the people are, but at least it's some
support for the idea. They might have sources.
> 2. Anyone know what issues there are with flatscreens & linux support?
>
No clue.
> 3. Anyone got a cheaper way of buying a decent flatscreen (in Aussieland!)
> than going to the local computer store/superstore?
>
Mail order? :) Of course, even by that route, I haven't seen a decent
flat screen (in the US) for less than $899. For a 15".
Mur!
Amanda M. Owens
Duke University Medical Center
Department of Radiation Oncology
************
[EMAIL PROTECTED] http://www.linuxchix.org
