Thanks for the info Rosalie.
The cats always approach something they are not sure about with their nose so a very small zap would probably do it. They are not interested in grass. They want to dig up the dirt and poop in it. I might try sticky pads but they could walk around them on the hatch rails upon which I could not put anything sticky. Thanks for the ideas... Norm S/V Bandersnatch Lying Julington Creek 30 07.695N 081 38.484W > [Original Message] > From: Rosalie B. <[EMAIL PROTECTED]> > To: <[email protected]> > Date: 8/26/2008 8:23:26 PM > Subject: [Liveaboard] Electric fence was Re: recent info about Venezuela > > On Tue, 26 Aug 2008 19:42:28 -0400, you wrote: > > > > >Actually MythBusters did a piece on that. > > > >Seems that there was a myth that one could pee on the third rail of an electric railway (600 VDC in NYC subways) and get away with it unharmed. > > > >So they did their thing and discovered with the high speed camera that after a certain distance from the source the stream of pee breaks up into individual drops so it does not conduct electricity. > > > >I have considered making an electric fence around our herb garden on board to keep the cats out by hooking up the fence wire to my 120 vac line through a several one megohm resistor. > > > Why not give them their own pot of grass, and put sticky paper around > your pots? > > >Anyone think that would be both effective and safe? > > > >Let's see: 120 volts divided by a meg is about a tenth of a milliamp.... > > There are Scat Mats which you plug into the house current to give a > cat that jumps on the sofa (or whatever) a shock. Don't know how > effective they are - I gave my mom one once. > > We had an electric fence for the horses, and they would use their > muzzle whiskers to check if it was on. If it was, they would gang up > on the horse that was the least likely to give them a fight and push > her through the fence so that they could all get out. > > For humans - > > 1-8 ma (.001-.008 amps) > Sensation, tingling > > 8-15 ma (.008-.015 amps) > Pain > > 15-20 ma (.015-.02 amps) > Loss of muscle control > > 20-50 ma (.02-.05 amps) > Difficult breathing, may cause damage to brain tissue and blood > vessels, may be fatal > > I would assume (although I do not know for sure) that these figures > are based on the normal body mass of an adult male. I don't know how > much different it would be for females or for smaller mammals like > cats. > > > > > >While there were two good ideas on how to turn a latching relay on or off using one wire, nobody came up with a way to use one wire (plus ground and 12 VDC at each end) to transmit both high temp and low oil alarm signals. I am surprised. I know we have lots of clever engineers on the List. > > > > > > > >Norm > >S/V Bandersnatch > >Lying Julington Creek > >30 07.695N 081 38.484W > > > > > > > >----- Original Message ----- > >From: JohnB > >To: [email protected] > >Sent: 8/26/2008 12:53:57 PM > >Subject: Re: [Liveaboard] recent info about Venezuela > > > > > >[EMAIL PROTECTED] wrote: > >anyone tried an electric fence charger? > > > >Puts a whole new light on peeing over the rail at night. > > > >John > > _______________________________________________ > Liveaboard mailing list > [email protected] > To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard > To subscribe send an email to [EMAIL PROTECTED] > > To unsubscribe send an email to [EMAIL PROTECTED] > The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ > > To search the archives http://www.mail-archive.com/[email protected] > > The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.138 / Virus Database: 270.6.7/1632 - Release Date: 8/25/2008 7:05 AM > _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [EMAIL PROTECTED] To unsubscribe send an email to [EMAIL PROTECTED] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
