RE: Blue light emission from certain envelopes

[desegnac <desegnac@SWBELL.NET>]

Hi Bjorn !



You did not specify whether the light is visible at some degree of darkness

or in a broad daylight. However, I think - believe - that it is simply a

static electricity discharge; static, sometimes quite strong, being,

commonly, created by a separation of two insulating paper surfaces. Applied

adhesive, sometimes, may add to the insulation properties, thus, probably,

the strength of the static field and the glow.



Regards - Dusan Radosavljevic, Austin, TX



desegnac@swbell.net







-----Original Message-----

From: owner-radsafe@list.vanderbilt.edu

[mailto:owner-radsafe@list.vanderbilt.edu]On Behalf Of Bjorn Cedervall

Sent: Saturday, September 28, 2002 11:43 PM

To: radsafe@list.vanderbilt.edu

Subject: Blue light emission from certain envelopes



Hallo all Radsafers,



I wonder if anyone knows what the physico-chemical reaction is which causes

the blue light when one opens certain envelopes with a self-adhesive

gluelike substance. I was asked this the other day by some layperson -

whether this radiation was dangerous or not and just answered that since it

is visible light it could most probably not do anything bad to you.

Nevertheless, it is unsatisfying not being able to give a more exact answer.

I tried to find some info on the Internet without success. Any comments that

sheds "light" upon the mechanisms are welcome. If longer responses - please

write me directly since this hardly can be a radiation problem.



Bjorn Cedervall    bcradsafers@hotmail.com





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