[AZ-Observing] Re: Instant criminals
- From: <rtejera@xxxxxxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Tue, 4 Jan 2005 18:08:17 -0500
OK here is a link to one of the post on Astro officers that gives the =
best information on beam dispersment etc. I believe the author was =
replying to a member of the group and is involved in some way in the =
laser industry:
http://groups.yahoo.com/group/astro-officers/message/5066
You may want to look at the whole thread for more info & opinion.
Rick
-----Original Message-----
From: Russell Chmela~ [mailto:rchmela@xxxxxxxxxxxxxxxxxxx]
Sent: Tuesday, January 04, 2005 3:06 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Instant criminals=20
A cockpit windscreen in most of the standard airliners is about the
same size as that of an automobile , just double glazed and flat in
its shape.
=20
What I find odd about the whole thing is that (and someone with
more laser knowledge help me out here if this is not correct) a beam
from a green pointer would likely diverge and spread if going through
all of that glass at an angle. If coming from the ground, it will be
an angle and a steep one. The amount of power left would be little or
no harm to vision and like Thad said, how can you track a retina with
a hand pointer given the large angle movement between those two?
The way I see it, its just more paranoia on the part of airlines=20
and government. I would be a lot more worried if that green beam was
trying to lock onto an engine. Instead of worrying about George Lucas
type threats , maybe the security types should be worried about the=20
hundreds of shoulder carried SAM rockets (infrared) out there and=20
be a bit more realistic.=20
Not a pilot, but very enthusiast on aircraft.
Not bored , but photon deprived.
=20
RC
----------------------------------
Added bonus thoughts....How big is a cockpit window? How much control=20
would someone from
say, a mile or two, have to possess to point a laser in that area, even=20
momentarily, while it's moving
at a few hundred mph? Is it feasible to think that someone *could* do=20
it by *hand*?
I know there are some pilots in the group, what are your thoughts?
Just bored on a Tuesday afternoon,
=20
--=20
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See message header for info on list archives or unsubscribing, and =
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