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OT: Blinding Bugs with a Laser Pointer

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D from BC

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Nov 30, 2009, 4:45:09 AM11/30/09
to
I saw a bug on my ceiling...
Which reminded me of a utube video of a spider chasing after a laser
spot.
So I get the laser pointer(actually a laser distance measurement tool)
and aim it near the bug.
It flies!
I don't like flies and when it relanded on the ceiling I decided to do
a less friendly test.. Laser blinding! muhahahhaha.... :P

I rested the laser spot all over the fly. A good 30 seconds.
I probably fried every light receptor.
The fly took off did a few chaotic circles in the air and I lost track
of it.
It did not reland on the ceiling.

I need more power! :P
1W laser fly zapper project???
With sniper scope of course :)

Jan Panteltje

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Nov 30, 2009, 6:55:38 AM11/30/09
to
On a sunny day (Mon, 30 Nov 2009 01:45:09 -0800) it happened D from BC
<myreal...@comic.com> wrote in
<l837h5d1nauevf6bc...@4ax.com>:

Some time ago it was discussed here to use a laser from an old DVD burner.
I joked you could scan using a mirror assembly, and when you get a reflection
increase power and burn the bug.
Joked the experiment would leave all sorts of burning spots on the wall paper.
Then a while ago I read somebody at NASA actually did it,
and they can, from the reflection frequency, even determine what sort of bug
is in the beam, and *only* shoot mosquitos that way...
No it was not April 1, but hey, I did think of it first :-)

NASA reads this group?

Dirk Bruere at NeoPax

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Nov 30, 2009, 11:36:26 AM11/30/09
to

Just waiting for someone with an odd shaped iris and his lawyer.

--
Dirk

http://www.transcendence.me.uk/ - Transcendence UK
http://www.theconsensus.org/ - A UK political party
http://www.blogtalkradio.com/onetribe - Occult Talk Show

Jan Panteltje

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Nov 30, 2009, 11:57:36 AM11/30/09
to
On a sunny day (Mon, 30 Nov 2009 16:36:26 +0000) it happened Dirk Bruere at
NeoPax <dirk....@gmail.com> wrote in <7niajrF...@mid.individual.net>:

Well, it could be programmed to target lawyers I guess:-)

D from BC

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Nov 30, 2009, 1:15:01 PM11/30/09
to
On Mon, 30 Nov 2009 11:55:38 GMT, Jan Panteltje
<pNaonSt...@yahoo.com> wrote:

>Some time ago it was discussed here to use a laser from an old DVD burner.
>I joked you could scan using a mirror assembly, and when you get a reflection
>increase power and burn the bug.
>Joked the experiment would leave all sorts of burning spots on the wall paper.
>Then a while ago I read somebody at NASA actually did it,
>and they can, from the reflection frequency, even determine what sort of bug
>is in the beam, and *only* shoot mosquitos that way...
>No it was not April 1, but hey, I did think of it first :-)
>
>NASA reads this group?

Neato..

I wonder if it'll become a pest control method..
For example..
A laser unit is placed on the floor, turned on and then it starts
scanning for crawling bugs ...especially roaches.
The scan height is low for low odds of blinding someone.
When a roach has been detected, a deadly pulse is triggered.

If there's no misses then it might be possible there will be no damage
to the baseboards (burnt spots) and low risk of setting the house on
fire. :P

AZ Nomad

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Nov 30, 2009, 1:28:06 PM11/30/09
to

>Neato..

The amount of power to blind a bug should be orders of magnatude less
than that which would cause baseboard burn spots.

Wingsy

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Nov 30, 2009, 1:53:43 PM11/30/09
to
In article <l837h5d1nauevf6bc...@4ax.com>, D from BC
<myreal...@comic.com> wrote:

You know those 10 million candlepower (or so they advertise) handheld
spotlights you may have seen at CosCo or online? I got one, and one
evening I shined it up near the tops of the trees and zeroed in on a
flying moth. After a second or two it went into a tailspin and
eventually flew into the ground. I did another, and another, and
another until I was finally convinced that the bright light was indeed
corrupting their nav systems. And this was just a big flashlight from
50 feet away, so I'd imagine that a laser would do the same -- if you
could hold it right on the bug for a bit.

D from BC

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Nov 30, 2009, 2:00:12 PM11/30/09
to

I think a laser bug burner would be more effective pest control than
bug blinder.
Roaches have very good odor receptors and iirc that is the primary way
roaches find food.
iirc.. roaches don't have much use for eyes.

I vote for bug burner instead of bug blinder.

Michael

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Nov 30, 2009, 2:46:42 PM11/30/09
to
On Nov 30, 10:15 am, D from BC <myrealaddr...@comic.com> wrote:
> On Mon, 30 Nov 2009 11:55:38 GMT, Jan Panteltje
>


And if someone managed to walk between the laser and the bug at the
wrong time?

"Ouch... my retina!"

Michael
--
Darrett Computer Repair
http://michaeldarrett.x10hosting.com
(916) 290-9351
Free estimates. No charge if we can't fix it.
City of Rancho Cordova Lic. #307299
CA BEAR Lic. #86053

D from BC

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Nov 30, 2009, 3:06:49 PM11/30/09
to

It'll be very improbable to get a bare foot in the firing line by
accident.

Maybe in the fine print it can say:
The Floor Scan anti-bug laser system would have to be respected like a
spring mousetrap.
'Don't stick your finger in the mousetrap!'

I think it'll be doable to have firmware that can differentiate
between little bugs and big feet.
(The scan laser only gets a power pulse (turns into a 'death beam')
when the firmware calculates a roach size and movement.)

>
>"Ouch... my retina!"
>
>Michael

Jim Yanik

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Nov 30, 2009, 3:23:25 PM11/30/09
to
D from BC <myreal...@comic.com> wrote in
news:vu48h512hkft9897k...@4ax.com:

roaches have antennas that are very sensitive to air current changes,move
fast,and are pretty tough bugs.
You ever see a Palmetto bug? It's a LARGE cockroach,about 1.5-2" long,full
grown. They fly,too.
I don't think a laser would bother them unless it was capable of frying it
in an instant.You'd have trouble keeping the spot on it for any length of
time.

--
Jim Yanik
jyanik
at
localnet
dot com

D from BC

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Nov 30, 2009, 3:51:03 PM11/30/09
to
On Mon, 30 Nov 2009 14:23:25 -0600, Jim Yanik <jya...@abuse.gov>
wrote:

Found pic..
http://images.whatsthatbug.com/images/toebiter_tyler.jpg

I think those are ones I saw in a movie.
'Bug'
http://www.imdb.com/title/tt0072750/

>I don't think a laser would bother them unless it was capable of frying it
>in an instant.You'd have trouble keeping the spot on it for any length of
>time.

Yes.. Some testing and ~debugging~ will be required. :)

D from BC

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Nov 30, 2009, 8:15:02 PM11/30/09
to
On Mon, 30 Nov 2009 12:51:03 -0800, D from BC
<myreal...@comic.com> wrote:

oops that bug pic link above is probably a giant water beetle.

Found another..
http://lh5.ggpht.com/_e88exju_DJY/Ruf4LVMMtnI/AAAAAAAABBQ/xS5hPNLHd40/costa+rica+07+113.jpg
Tiny hands can make big bugs bigger.

krw

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Nov 30, 2009, 8:22:25 PM11/30/09
to

For wasps and hornets, do the opposite. Attack them at night.

RFI-EMI-GUY

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Nov 30, 2009, 8:26:27 PM11/30/09
to


I was at one of those outdoor laser light shows (Stone Mountain I
think)a long time ago. I could swear I could hear bugs getting sizzled
near the laser equipment.

--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"�

"Use only Genuine Interocitor Parts" Tom Servo ;-P

Jim Thompson

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Nov 30, 2009, 8:39:27 PM11/30/09
to

Hair spray is handy for just about any flying insect... even bees...
quick shot and run... bee flies a few feet and seizes up ;-)

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

Paul Hovnanian P.E.

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Nov 30, 2009, 7:43:10 PM11/30/09
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A few beers and you'll forget you are sitting outside on your deck.
That's not a fly, its a 747.

--
Paul Hovnanian mailto:Pa...@Hovnanian.com
------------------------------------------------------------------
Speed is n0 subsittute fo accurancy.

Jim Thompson

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Nov 30, 2009, 8:45:35 PM11/30/09
to
On Mon, 30 Nov 2009 17:43:10 -0700, "Paul Hovnanian P.E."
<pa...@hovnanian.com> wrote:

>A few beers and you'll forget you are sitting outside on your deck.
>That's not a fly, its a 747.

We have bats... nice creatures... no gnats ;-)

alie...@gmail.com

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Nov 30, 2009, 8:49:31 PM11/30/09
to
On Nov 30, 5:39 pm, Jim Thompson <To-Email-Use-The-Envelope-I...@My-

Web-Site.com> wrote:
> On Mon, 30 Nov 2009 19:22:25 -0600, krw <k...@att.bizzzzzzzzzzz> wrote:
> >On Mon, 30 Nov 2009 13:53:43 -0500, Wingsy <no...@nowhere.com> wrote:
>
> >>In article <l837h5d1nauevf6bc1cc6kvoe6vt7d4...@4ax.com>, D from BC

Hair spray and a lighter is better; you don't have to run!


Mark L. Fergerson

krw

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Nov 30, 2009, 9:02:04 PM11/30/09
to

That works for one bugger at a time. It's not a good idea to attack a
nest with it. The instant death spray with a 20' range is a far
better idea.

Jim Thompson

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Nov 30, 2009, 9:27:03 PM11/30/09
to

I cut a hole in the patio ceiling to install a speaker... immediately
inhabited by bee "scouts".

Called my exterminator service. He came, advised closing all doors,
including doggy door, 'cause, "I'm going to make 'em really mad" ;-)

They were completely gone in a few hours.

pimpom

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Dec 1, 2009, 12:59:30 AM12/1/09
to
Here's a novel way to kill a roach with a laser:
One night last year, I needed a hard copy of a small schematic
and hit the print button. Out came the schematic plus six roach
legs and two antennae, all "printed" on the paper. I had visions
of having to take my laser printer apart to clean off the remains
of the bug squashed and spread over several rollers, possibly
also necessitating replacement of the toner because of a damaged
drum.

When I took out the toner cartridge, I saw the body of the roach
resting against the paper feed roller. Fortunately, the body had
been too big to go in. I took it out with a pair of tweezers and
placed it on the floor. I was amazed to see it still wriggling
and then walking on the stumps, albeit very slowly. I enjoy
killing roaches but making them suffer needlessly is another
thing. I quickly squashed it. Here's a picture:
http://s48.photobucket.com/albums/f223/keimah/?action=view&current=Printed_Cockroach.jpg


D from BC

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Dec 1, 2009, 1:50:53 AM12/1/09
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On Tue, 1 Dec 2009 11:29:30 +0530, "pimpom" <pim...@invalid.com>
wrote:

ewwww..

imo..roaches seem to be non-existant in BC.
But we have giant slugs..
http://canadacalling.ca/other/juandefuca/slug.jpg

Wingsy

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Dec 1, 2009, 6:54:58 AM12/1/09
to
In article <i2u8h590l4qmk0ef4...@4ax.com>, krw
<k...@att.bizzzzzzzzzzz> wrote:

Even better - gasoline. Throw a half glass of gasoline on a wasp's nest
and they all drop straight to the ground. They don't even flap their
wings once.

invalid

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Dec 1, 2009, 9:53:03 AM12/1/09
to
"Wingsy" <no...@nowhere.com> wrote in message
news:011220090654581823%no...@nowhere.com...

> Even better - gasoline. Throw a half glass of gasoline on a wasp's nest
> and they all drop straight to the ground. They don't even flap their
> wings once.

Is that before or after you apply the lighted match?


John Devereux

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Dec 1, 2009, 10:19:02 AM12/1/09
to
Jim Thompson <To-Email-Use-Th...@My-Web-Site.com> writes:

On of the examples in Phil Hobbs' optics book was for a fictional (I
assume) laser bug zapper. IIRC it included a fully worked out flying
spot laser scanner to locate the bug.

>>>>For wasps and hornets, do the opposite. Attack them at night.
>>>
>>>Hair spray is handy for just about any flying insect... even bees...
>>>quick shot and run... bee flies a few feet and seizes up ;-)
>>
>>That works for one bugger at a time. It's not a good idea to attack a
>>nest with it. The instant death spray with a 20' range is a far
>>better idea.
>
> I cut a hole in the patio ceiling to install a speaker... immediately
> inhabited by bee "scouts".
>
> Called my exterminator service. He came, advised closing all doors,
> including doggy door, 'cause, "I'm going to make 'em really mad" ;-)
>
> They were completely gone in a few hours.

A few years ago some local wasps made the mistake of setting up shop in
the external vent for our cooker extractor fan. Ready made ducting to
focus and contain the bug spray, perfect!

--

John Devereux

Rich Grise

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Dec 1, 2009, 1:10:41 PM12/1/09
to
On Mon, 30 Nov 2009 01:45:09 -0800, D from BC wrote:

> I saw a bug on my ceiling...
> Which reminded me of a utube video of a spider chasing after a laser spot.
> So I get the laser pointer(actually a laser distance measurement tool) and
> aim it near the bug.
> It flies!
> I don't like flies and when it relanded on the ceiling I decided to do a
> less friendly test.. Laser blinding! muhahahhaha.... :P
>
> I rested the laser spot all over the fly. A good 30 seconds. I probably
> fried every light receptor. The fly took off did a few chaotic circles in
> the air and I lost track of it.
> It did not reland on the ceiling.
>
> I need more power! :P
> 1W laser fly zapper project???
> With sniper scope of course :)

Is "D from BC" just a pseudonym for Skybuck?

Thanks,
Rich


Rich Grise

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Dec 1, 2009, 1:12:53 PM12/1/09
to
On Mon, 30 Nov 2009 20:02:04 -0600, krw wrote:
> On Mon, 30 Nov 2009 18:39:27 -0700, Jim Thompson
>>
>>Hair spray is handy for just about any flying insect... even bees...
>>quick shot and run... bee flies a few feet and seizes up ;-)
>
> That works for one bugger at a time. It's not a good idea to attack a
> nest with it. The instant death spray with a 20' range is a far better
> idea.

But bees are good guys!

Thanks,
Rich

christofire

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Dec 1, 2009, 2:05:29 PM12/1/09
to

"Paul Hovnanian P.E." <pa...@hovnanian.com> wrote in message
news:4B14669E...@hovnanian.com...


... and there are lots of newspaper reports of members of the public being
prosecuted, even imprisoned, for shining laser pointers at planes and
helicopters. An example is
http://www.kentnews.co.uk/kent-news/Police-helicopter-pilot-was-blinded-by-laser-pen-newsinkent24688.aspx?news=local
but the statement 'For the first time sky cops are using a device which
pinpoints the source of the beam and can photograph the operator' looks a
bit odd - perhaps it can only photograph the operator when he/she switches
the laser off and, obligingly, stands in the same position for a while. I
wonder if they're prosecuting people who use those torches with "the power
of a million candles" when they point them up to see what's making the
deafening noise above their house. Hmmm.

Chris


Dirk Bruere at NeoPax

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Dec 1, 2009, 3:08:31 PM12/1/09
to
Actually, it may be a very good solution for certain types of crop
protection. Cheaper than pesticides?

--
Dirk

http://www.transcendence.me.uk/ - Transcendence UK
http://www.theconsensus.org/ - A UK political party
http://www.blogtalkradio.com/onetribe - Occult Talk Show

krw

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Dec 1, 2009, 7:16:02 PM12/1/09
to

That's a good idea; throw gasoline on your house and light a match.
You're right, the bees will no longer be your problem.

krw

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Dec 1, 2009, 7:17:53 PM12/1/09
to
On Tue, 01 Dec 2009 10:12:53 -0800, Rich Grise <rich...@example.net>
wrote:

>On Mon, 30 Nov 2009 20:02:04 -0600, krw wrote:
>> On Mon, 30 Nov 2009 18:39:27 -0700, Jim Thompson
>>>
>>>Hair spray is handy for just about any flying insect... even bees...
>>>quick shot and run... bee flies a few feet and seizes up ;-)
>>
>> That works for one bugger at a time. It's not a good idea to attack a
>> nest with it. The instant death spray with a 20' range is a far better
>> idea.
>
>But bees are good guys!

Not when they're wasps and hornets, living in/on my house. I killed
as many carpenter bees as I could (and hired an exterminator to help)
last spring. I'm sure I'll be back at it again next spring.

Archimedes' Lever

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Dec 1, 2009, 7:43:24 PM12/1/09
to
On Tue, 1 Dec 2009 14:53:03 -0000, "invalid" <inv...@invalid.invalid>
wrote:

Zeptox

D from BC

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Dec 1, 2009, 8:24:22 PM12/1/09
to

Lasered grasshoppers vs accidentally blinded farmers.. mmmmm :|

And if things get too dry, crops might catch fire from lasered
grasshoppers?

Maybe a laser detect/laser burn bug system will do better in a
greenhouse.. Dunno..

D from BC

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Dec 1, 2009, 8:30:42 PM12/1/09
to
On Tue, 01 Dec 2009 10:10:41 -0800, Rich Grise <rich...@example.net>
wrote:

>On Mon, 30 Nov 2009 01:45:09 -0800, D from BC wrote:

Yeah.. I've started this thread off in quirky way..
But sometimes that's how things get invented.
Example: The thought of 'a windshield that can blink'..leads to the
invention of the intermittent wiper.

Laser diodes are now powerful enough to kill bugs..
The question is: Can solid state lasers perform a pest control role?
Or at the very least be an amusing geek toy to sniper the occasional
house fly.

D from BC

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Dec 1, 2009, 8:53:16 PM12/1/09
to

It's like firing a laser is like firing a gun..

richard

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Dec 1, 2009, 9:52:53 PM12/1/09
to
I piped Hydrogen Sulphide into a wasps nest.
Killed them, though I was stung a couple of times.
Then I burnt the nest.
Smelly though.

I recollect Calcium Carbide being used to kill wasps - I presume it was the Acetylene, though as I was only 9 or 10 at the time
I cannot be 100% confident of this.

Tim Williams

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Dec 1, 2009, 10:09:32 PM12/1/09
to
"richard" <mullens-...@ntlworld.com> wrote in message
news:aEkRm.23068$dm....@newsfe26.ams2...

> I piped Hydrogen Sulphide into a wasps nest.
> Killed them, though I was stung a couple of times.
> Then I burnt the nest.
> Smelly though.
>
> I recollect Calcium Carbide being used to kill wasps - I presume it was
> the Acetylene, though as I was only 9 or 10 at the time I cannot be 100%
> confident of this.

Might've been a similar product. I recall calcium phosphide has been sold
for killing moles and the like. Moisture causes it to release phosphine
("hydrogen phosphide" as it were), which bears a strong resemblance to your
above comment. Phosphide is a major impurity of carbide, which doesn't
really mean all that much (it could be parts per million, which would be
fairly pure actually), but because it's so poisonous and smelly, it's a
notable component of the stuff.

Tim

--
Deep Friar: a very philosophical monk.
Website: http://webpages.charter.net/dawill/tmoranwms


Dirk Bruere at NeoPax

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Dec 2, 2009, 6:11:18 AM12/2/09
to

farmers do not spend a long time in growing fields -the system can be
turned off.

> And if things get too dry, crops might catch fire from lasered
> grasshoppers?

Unlikely - point it skywards or horizontal above the crop, and with
enough energy to fatally injure, not incinerate. Turn them into fertilizer.

> Maybe a laser detect/laser burn bug system will do better in a
> greenhouse.. Dunno..

More dangerous IMO due to reflections.

Jim Yanik

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Dec 2, 2009, 9:09:13 AM12/2/09
to
D from BC <myreal...@comic.com> wrote in
news:2nhbh5500lli7bjkk...@4ax.com:

think of it from the police viewpoint;
a laser spot on their body could be a GUN-mounted laser,and thus a deadly
threat.

from the pilot's viewpoint;
trying to fly (to keep the AC in the air)after being blinded is rather
difficult.Thus a lethal threat.

ISTR a few people in the US being prosecuted for shining laser pointers on
aircraft,IIRC,police helos that were hovering in the area.
(BLACK helicopters,too,BTW!!)

--
Jim Yanik
jyanik
at
localnet
dot com

Jim Thompson

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Dec 2, 2009, 9:20:32 AM12/2/09
to
On Wed, 02 Dec 2009 08:09:13 -0600, Jim Yanik <jya...@abuse.gov>
wrote:

Yep. We just had a kid in Mesa (just east of Phoenix) arrested for
playing laser-pointer games with aircraft taking off from Sky Harbor.



...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

You can never be too prepared for the REPRESSION!

Rich Grise

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Dec 2, 2009, 1:11:54 PM12/2/09
to
On Tue, 01 Dec 2009 18:17:53 -0600, krw wrote:
> On Tue, 01 Dec 2009 10:12:53 -0800, Rich Grise <rich...@example.net>
>>On Mon, 30 Nov 2009 20:02:04 -0600, krw wrote:
>>> On Mon, 30 Nov 2009 18:39:27 -0700, Jim Thompson
>>>>
>>>>Hair spray is handy for just about any flying insect... even bees...
>>>>quick shot and run... bee flies a few feet and seizes up ;-)
>>>
>>> That works for one bugger at a time. It's not a good idea to attack a
>>> nest with it. The instant death spray with a 20' range is a far better
>>> idea.
>>
>>But bees are good guys!
>
> Not when they're wasps and hornets, living in/on my house. I killed as
> many carpenter bees as I could (and hired an exterminator to help) last
> spring. I'm sure I'll be back at it again next spring.

Bees aren't wasps or hornets. If he meant wasps and hornets, why isn't
that what he said?

Thanks,
Rich

krw

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Dec 2, 2009, 6:26:35 PM12/2/09
to
On Wed, 02 Dec 2009 10:11:54 -0800, Rich Grise <rich...@example.net>
wrote:

It's what I said (and has been snipped) back up there a few levels.

Rich Grise

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Dec 3, 2009, 2:14:30 PM12/3/09
to
On Wed, 02 Dec 2009 17:26:35 -0600, krw wrote:
> On Wed, 02 Dec 2009 10:11:54 -0800, Rich Grise <rich...@example.net>

Ah. Thanks; I stand corrected sir. :-)

Cheers!
Rich

alex1...@gmail.com

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Sep 12, 2017, 11:57:51 AM9/12/17
to
On Monday, November 30, 2009 at 4:45:09 AM UTC-5, D from BC wrote:
> I saw a bug on my ceiling...
> Which reminded me of a utube video of a spider chasing after a laser
> spot.
> So I get the laser pointer(actually a laser distance measurement tool)
> and aim it near the bug.
> It flies!
> I don't like flies and when it relanded on the ceiling I decided to do
> a less friendly test.. Laser blinding! muhahahhaha.... :P
>
> I rested the laser spot all over the fly. A good 30 seconds.
> I probably fried every light receptor.
> The fly took off did a few chaotic circles in the air and I lost track
> of it.
> It did not reland on the ceiling.
>
> I need more power! :P
> 1W laser fly zapper project???
> With sniper scope of course :)

XD rip i ordered me a 20mw laser will that be enough to kill a bug

Taxed and Spent

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Sep 12, 2017, 12:30:17 PM9/12/17
to
Years ago, when I was the only one in the world with my own laser (well,
almost - glass tube days), I almost got a cat to jump into a swimming
pool. I did get a drunk chick cornered and she threw her beer at the
red spot that was chasing her.

bitrex

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Sep 12, 2017, 12:45:52 PM9/12/17
to
Unfortunately for OP the rhodopsins in the housefly vision system have
very little absorption in the human-visible spectrum, and its response
at 650 nm is for all intents and purposes zero. Pretty sure the fly
didn't notice a thing

Taxed and Spent

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Sep 12, 2017, 1:00:54 PM9/12/17
to
I am sure he will move on to drunk chicks about now.

bitrex

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Sep 12, 2017, 1:16:58 PM9/12/17
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On 09/12/2017 01:00 PM, Taxed and Spent wrote:

>>> Years ago, when I was the only one in the world with my own laser (well,
>>> almost - glass tube days), I almost got a cat to jump into a swimming
>>> pool. I did get a drunk chick cornered and she threw her beer at the
>>> red spot that was chasing her.
>>
>> Unfortunately for OP the rhodopsins in the housefly vision system have
>> very little absorption in the human-visible spectrum, and its response
>> at 650 nm is for all intents and purposes zero. Pretty sure the fly
>> didn't notice a thing
>>
>
>
> I am sure he will move on to drunk chicks about now.

Sadly all the "chicks" who once found laser pointers novel are likely in
their mid-60s by now. The younger ones are too busy with their phones to
look up

bitrex

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Sep 12, 2017, 1:21:48 PM9/12/17
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OPs aren't thinking big enough; OPs should get like a 1 watt UV laser
attached to an infrared tracking system and swiveling robotic arm that
vaporizes those suckers right out of the air. Pew pew!

Tim Williams

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Sep 12, 2017, 1:39:33 PM9/12/17
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"bitrex" <bit...@de.lete.earthlink.net> wrote in message
news:XaUtB.41639$rF2....@fx21.iad...
> Unfortunately for OP the rhodopsins in the housefly vision system have
> very little absorption in the human-visible spectrum, and its response at
> 650 nm is for all intents and purposes zero. Pretty sure the fly didn't
> notice a thing

Interesting. Might've cooked it a bit though.

I've sometimes seen flies behaving "drunk" around my unfiltered LED fixture.
Those chips are pretty intense...

Tim

--
Seven Transistor Labs, LLC
Electrical Engineering Consultation and Contract Design
Website: http://seventransistorlabs.com

John Larkin

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Sep 12, 2017, 2:07:06 PM9/12/17
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Combine a low power scanning LIDAR with a laser zapper. Sort of an
Anti Ballistic Mosquito Defense.


--

John Larkin Highland Technology, Inc
picosecond timing precision measurement

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com

bitrex

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Sep 12, 2017, 2:13:01 PM9/12/17
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On 09/12/2017 01:12 PM, Tim Williams wrote:
> "bitrex" <bit...@de.lete.earthlink.net> wrote in message
> news:XaUtB.41639$rF2....@fx21.iad...
>> Unfortunately for OP the rhodopsins in the housefly vision system have
>> very little absorption in the human-visible spectrum, and its response
>> at 650 nm is for all intents and purposes zero. Pretty sure the fly
>> didn't notice a thing
>
> Interesting. Might've cooked it a bit though.

If the light-absorbing goop in the fly vision system doesn't absorb any
more at that wavelength than any other part of the fly idk how it
would've damaged it any more than any other part of the fly. Handheld
red laser pointer certainly wouldn't cause ionization. With enough power
I'm sure you could focus enough energy on the poor thing to damage it
with any wavelength but I'd guess the wings would go first.

Also OP is claiming he was able to hold a handheld laser pointer beam
directly on a fly's eye for 30 seconds from across a room. Ok...

Maybe flies have some more generally weakly light-sensitive receptors on
their extremities. Maybe getting hit with the laser pointer beam felt
like a soothing shower, that's why it stayed so long.

Steve Wilson

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Sep 12, 2017, 2:42:01 PM9/12/17
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John Larkin <jjlarkin@highland_snip_technology.com> wrote:

> Combine a low power scanning LIDAR with a laser zapper. Sort of an
> Anti Ballistic Mosquito Defense.

Mosquito laser WMD (Weapon of Mosquito Destruction)

https://en.wikipedia.org/wiki/Mosquito_laser

Mosquito killed by a Laser

https://www.youtube.com/watch?v=eYXPqrXZ1eU

Nathan Myhrvold's TED talk on malaria and killing mosquitoes

https://www.ted.com/talks/nathan_myhrvold_could_this_laser_zap_malaria

Adrian Jansen

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Sep 12, 2017, 5:42:04 PM9/12/17
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On 13/09/2017 3:12 AM, Tim Williams wrote:
> "bitrex" <bit...@de.lete.earthlink.net> wrote in message
> news:XaUtB.41639$rF2....@fx21.iad...
>> Unfortunately for OP the rhodopsins in the housefly vision system have
>> very little absorption in the human-visible spectrum, and its response
>> at 650 nm is for all intents and purposes zero. Pretty sure the fly
>> didn't notice a thing
>
> Interesting.  Might've cooked it a bit though.
>
> I've sometimes seen flies behaving "drunk" around my unfiltered LED
> fixture. Those chips are pretty intense...
>
> Tim
>
You may have something there. I too doubt that IR would affect a fly
much, but white LEDS emit a narrow UVA band which would be about in the
right range for a flys receptors. Its that UVA which pumps the
phosphors in the LED to produce the white light.

--
Regards,

Adrian Jansen

John Larkin

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Sep 12, 2017, 6:05:38 PM9/12/17
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I suppose you could run blood through a capillary and look as things
pass. Sort of like a Coulter Counter or one of those fluorescent
molecule analyzer things. Zap the bad ones.

Steve Wilson

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Sep 12, 2017, 7:59:01 PM9/12/17
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John Larkin <jjlarkin@highland_snip_technology.com> wrote:

> I suppose you could run blood through a capillary and look as things
> pass. Sort of like a Coulter Counter or one of those fluorescent
> molecule analyzer things. Zap the bad ones.

You would have to sit each individual down at the machine, and convince
each blood cell to go through that capillary to be inspected. That may take
some time.

Instead, let the mosquitoes kill themselves. There are a number of ways:

Baiting Mosquitoes with Knowledge and Proven Insecticides

At the Agricultural Research Service (ARS) Center for Medical,
Agricultural and Veterinary Entomology (CMAVE) in Gainesville, Fla.,
entomologist Sandra Allan is using toxic sugar-based baits to lure
and kill mosquitoes. Allan and her CMAVE cooperators are evaluating
insecticides and designing innovative technology to fight biting
insects and arthropods. ARS is USDA's principal intramural
scientific research agency.

http://www.ars.usda.gov/is/pr/2012/121113.htm

https://www.insidescience.org/content/mosquitoes-need-sugar-not-blood-
survive/1206

How to Build a Mosquito Trap From an Old Tire

Mosquitoes love old tires. Scientists aren't exactly sure why.

There's something about the warm rubber - a chemical compound that
the mosquitoes can smell, perhaps - that attracts the insects to lay
their eggs in the tires' hollow insides. In backyard settings, old
tires are one of the biggest risk factors for mosquito breeding,
producing up to a third of all mosquitoes in the area.

http://www.smithsonianmag.com/innovation/how-to-build-mosquito-trap-from-
old-tire-180958954/

Genetic Control of Mosquitoes

Genetics can potentially provide new, species-specific,
environmentally friendly methods for mosquito control. Genetic
control strategies aim either to suppress target populations or to
introduce a harm-reducing novel trait. Different approaches differ
considerably in their properties, especially between self-limiting
strategies, where the modification has limited persistence, and
self-sustaining strategies, which are intended to persist
indefinitely in the target population and may invade other
populations. Several methods with different molecular biology are
under development and the first field trials have been completed
successfully.

http://www.annualreviews.org/doi/full/10.1146/annurev-ento-011613-162002

Personally, I like the Gene Drive approach. Self-propagating. Useful for
other pests, such as screwworm. These can attack anyone:

Woman’s ‘Excruciating’ Head Pain Turns Out to Be One of the Grossest Things
You Can Imagine

https://www.liveleak.com/view?i=cc5_1374019730

k...@notreal.com

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Sep 12, 2017, 10:16:52 PM9/12/17
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Now that's *funny*.

Steve Wilson

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Sep 13, 2017, 12:43:29 AM9/13/17
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Steve Wilson <n...@spam.com> wrote:
> Genetic Control of Mosquitoes

> Genetics can potentially provide new, species-specific,
> environmentally friendly methods for mosquito control. Genetic
> control strategies aim either to suppress target populations or to
> introduce a harm-reducing novel trait. Different approaches differ
> considerably in their properties, especially between self-limiting
> strategies, where the modification has limited persistence, and
> self-sustaining strategies, which are intended to persist
> indefinitely in the target population and may invade other
> populations. Several methods with different molecular biology are
> under development and the first field trials have been completed
> successfully.

> http://www.annualreviews.org/doi/full/10.1146/annurev-ento-011613-162002

The link has gone paywall. Costs $96 to read. Here is a free PDF version:

http://reviverestore.org/wp-content/uploads/2015/02/Alphey-AnnRevEnt-2014-
genetic-control-of-mosquitoes-copy.pdf

Here is a tinyurl link in case your reader has problems with wrap:

http://tinyurl.com/y7db55dp

Here is another article with additional information:

http://www.scielo.br/pdf/rimtsp/v54n5/09.pdf
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