From: John Larkin on 8 Apr 2010 11:46 On Thu, 8 Apr 2010 04:18:11 -0500, "George Jefferson" <George(a)Jefferson.com> wrote: >Is there a chemical deadly to mosquitos that is lighter than air? > >I was thinking about making an device that could kill them. I guess it's >probably no better than a bug zapper. > >The idea is that since they, supposedly, are attracted to CO2, to make a >bucket with an inverted code with a hole at the bottom. The mosquitos find >there way to the hole which is releasing CO2 then go instead. The gas is >trapped at the top of the inverted cone which should kill them. > > >|\ /| >| \ / | >| | >------- > >They probably already make this sorta thing but it seems like it would be >something rather easy and very cheap and one could place several of them >throughout the property which is more efficient than just one or two >zappers. The gas would allow one to increase the opening hole size which >might be more effective. > >Seems they already have many of these types of devices. Most don't use the >gas. Probably not necessary. Do these devices work well? I can get a small >cylinder of CO2 and rig something up quite easily if it's worth doing. CO2 or heat or pheremones attracts them. Microphone detects them. Motor spins briefly at high RPMs flinging weed-whacker sort of wire to emulsify them. Or flashtube roasts them. Make the interior into an integrating sphere to use the energy properly. Or fan spins them around into sticky stuff or into some sort of trap. Or spray them with oil. Or do the classic close-in-the-walls-and-crush-them SiFi horror thing. Or be kind and use a fan to push them through a tube to outside. A tiny sign could say "have a nice day" in mosquito. When I lived in New Orleans, I wanted to build a scanning mirror thing. A low power laser/lidar would scan the room near the ceiling. When it detected a skeeter, a serious laser would blast down the same axis and roast it. YIKES:POP bug==>smoke. But I moved to San Francisco instead, where we rarely see a mosquito. John
From: Dirk Bruere at NeoPax on 8 Apr 2010 12:19 On 08/04/2010 10:18, George Jefferson wrote: > Is there a chemical deadly to mosquitos that is lighter than air? > > I was thinking about making an device that could kill them. I guess it's > probably no better than a bug zapper. > > The idea is that since they, supposedly, are attracted to CO2, to make a > bucket with an inverted code with a hole at the bottom. The mosquitos > find there way to the hole which is releasing CO2 then go instead. The > gas is trapped at the top of the inverted cone which should kill them. > > > |\ /| > | \ / | > | | > ------- > > They probably already make this sorta thing but it seems like it would > be something rather easy and very cheap and one could place several of > them throughout the property which is more efficient than just one or > two zappers. The gas would allow one to increase the opening hole size > which might be more effective. > > Seems they already have many of these types of devices. Most don't use > the gas. Probably not necessary. Do these devices work well? I can get a > small cylinder of CO2 and rig something up quite easily if it's worth > doing. http://www.physorg.com/news156423566.html -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.blogtalkradio.com/onetribe - Occult Talk Show
From: D Yuniskis on 8 Apr 2010 13:05 George Jefferson wrote: > Is there a chemical deadly to mosquitos that is lighter than air? > > I was thinking about making an device that could kill them. I guess it's > probably no better than a bug zapper. > > The idea is that since they, supposedly, are attracted to CO2, to make a > bucket with an inverted code with a hole at the bottom. The mosquitos > find there way to the hole which is releasing CO2 then go instead. The > gas is trapped at the top of the inverted cone which should kill them. > > > |\ /| > | \ / | > | | > ------- > > They probably already make this sorta thing but it seems like it would > be something rather easy and very cheap and one could place several of > them throughout the property which is more efficient than just one or > two zappers. The gas would allow one to increase the opening hole size > which might be more effective. > > Seems they already have many of these types of devices. Most don't use > the gas. Probably not necessary. Do these devices work well? I can get a > small cylinder of CO2 and rig something up quite easily if it's worth > doing. Commercially available units tend to burn propane to form the gas. We had thought of buying one or two for use in the back yard until realizing the horrendous waste of propane involved (why not just put an outdoor grill out there and set the gas to the "leak" setting! :> ) It is very dry here. So, eliminating standing water does wonders for controlling the mosquito population. (OTOH, if you leave a bucket of water outside, it is amazing to see how quickly the larvae develop! look like little *eels* swimming in the bucket!) Also, being indoors at "mosquito time" helps a lot. The little ladies like it relatively cool when "hunting". At scout camp, we took the "manly" approach to controlling the pests: a 4G pressure vessel mounted to the hood of an army surplus (of course) Jeep spraying pesticide onto the hot manifold (i.e. a 1.5 ton "fogger"). I wonder how many of us will end up with lung cancer or some other malady attributable to this high exposure to pesticides?? <frown> (of course, the approach was entirely ineffective. You need *tons* of juice to cover hundreds of wooded acres :< )
From: MooseFET on 8 Apr 2010 20:44 On Apr 8, 8:46 am, John Larkin <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: > On Thu, 8 Apr 2010 04:18:11 -0500, "George Jefferson" > > > > <Geo...(a)Jefferson.com> wrote: > >Is there a chemical deadly to mosquitos that is lighter than air? > > >I was thinking about making an device that could kill them. I guess it's > >probably no better than a bug zapper. > > >The idea is that since they, supposedly, are attracted to CO2, to make a > >bucket with an inverted code with a hole at the bottom. The mosquitos find > >there way to the hole which is releasing CO2 then go instead. The gas is > >trapped at the top of the inverted cone which should kill them. > > >|\ /| > >| \ / | > >| | > >------- > > >They probably already make this sorta thing but it seems like it would be > >something rather easy and very cheap and one could place several of them > >throughout the property which is more efficient than just one or two > >zappers. The gas would allow one to increase the opening hole size which > >might be more effective. > > >Seems they already have many of these types of devices. Most don't use the > >gas. Probably not necessary. Do these devices work well? I can get a small > >cylinder of CO2 and rig something up quite easily if it's worth doing. > > CO2 or heat or pheremones attracts them. Microphone detects them. > > Motor spins briefly at high RPMs flinging weed-whacker sort of wire to > emulsify them. > > Or flashtube roasts them. Make the interior into an integrating sphere > to use the energy properly. > > Or fan spins them around into sticky stuff or into some sort of trap. > > Or spray them with oil. > > Or do the classic close-in-the-walls-and-crush-them SiFi horror thing. Or add the classic "bug zapper" effect where a spark goes through them. Or freeze them with a shot of LN2 Or find out what the mechanical resonant frequency of some important part of them is and hit them with a blast of that from a tweeter. > > Or be kind and use a fan to push them through a tube to outside. A > tiny sign could say "have a nice day" in mosquito. Or have that tube be long enough to take the bugs out into the the open and put a sign on it in bat language saying "snacks" > > When I lived in New Orleans, I wanted to build a scanning mirror > thing. A low power laser/lidar would scan the room near the ceiling. > When it detected a skeeter, a serious laser would blast down the same > axis and roast it. YIKES:POP bug==>smoke. But I moved to San Francisco > instead, where we rarely see a mosquito. > > John
From: JeffM on 8 Apr 2010 21:08 John Larkin wrote: >When I lived in New Orleans, >I wanted to build a scanning mirror thing. >A low power laser/lidar would scan the room near the ceiling. >When it detected a skeeter, a serious laser >would blast down the same axis and roast it. > http://science.slashdot.org/story/09/03/16/1339217/New-Laser-System-Targets-Mosquitoes&mode=nocomment ....and even built in your own garage http://science.slashdot.org/story/10/02/12/176220/Directed-Energy-Weapon-Downs-Mosquitos&mode=nocomment
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