No, it's not his cat, it's mine. On the other side, my cat may know the same trick. He loves to lay on my chair, I lift him up, drop him on the sofa and returns to my chair...and there he is. On 28 August 2013 13:18, Whittaker, Dewey (EHCOE) < [log in to unmask]> wrote: > So you can solve Schrödinger's cat riddle. > Dewey > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge Hernefjord > Sent: Wednesday, August 28, 2013 1:10 PM > To: [log in to unmask] > Subject: Re: [TN] Blowing Smoke > > When our cat farts, a very smal amount of gas is spread all over the room > and remains constant pretty long.. > > Inge > > > On 28 August 2013 11:21, Stadem, Richard D. <[log in to unmask] > >wrote: > > > Find out how particle counters are calibrated. There must be a > > procedure somewhere. Then figure out a way to make it cheaper and easier > to use. > > > > -----Original Message----- > > From: TechNet [mailto:[log in to unmask]] On Behalf Of Wayne Thayer > > Sent: Wednesday, August 28, 2013 12:09 PM > > To: [log in to unmask] > > Subject: Re: [TN] Blowing Smoke > > > > Hi Phil- > > > > No problem with organics. > > > > This is a good direction to consider: An electronic cigarette. They > > contain the micro-heater to vaporize the propylene glycol. I can > > probably make that controlled by the Arduino I'm using, and pulse > > width modulate it to adjust how much comes out. I may need an > > additional blower of some kind in the system, but that sounds pretty > easy. > > > > I'll let you know what I find out. > > > > Thanks, > > > > Wayne > > > > > > -----Original Message----- > > From: [log in to unmask] [mailto:[log in to unmask]] > > Sent: Wednesday, August 28, 2013 11:25 AM > > To: TechNet E-Mail Forum; Wayne Thayer > > Subject: RE: [TN] Blowing Smoke > > > > Heat up propylene glycol, oh wait, you need inorganic particulates, > right? > > > > -----Original Message----- > > From: TechNet [mailto:[log in to unmask]] On Behalf Of Wayne Thayer > > Sent: Wednesday, August 28, 2013 8:07 AM > > To: [log in to unmask] > > Subject: [TN] Blowing Smoke > > > > OK, here's another problem I've been playing with (although it has > > little to do with IPC mission, it might be related). > > > > I am trying to build a system for measuring airborne particulates for > > humanitarian organizations looking for inexpensive ways to > > measure/monitor indoor air quality. There are cheap sensors available > > which might do the job, but they would need periodic re-calibration. > > > > So I need a controlled, extremely small amount of smoke. At first, I > > thought this would be trivial: Find a cheap part at DigiKey and put > > too many watts through it. Way too much smoke and too little control. > > Then I tried burning thin wires. Too irregular because sometimes they > > incinerate completely and other times they find a tiny defect and just > > burn that until the wire stops conducting. Then I tried just heating > > the wire enough to burn off the insulation. Still too irregular! I > > did just a few experiments and got 30% variation. > > > > Now I'm starting to think maybe a tiny piece of paper on an automotive > > cigarette lighter. That's a lot of power to get that glowing, and it > > is not convenient to attach to. Any other ideas? > > > > Wayne > > > > ______________________________________________________________________ > > This email has been scanned by the Symantec Email Security.cloud service. > > For more information please contact helpdesk at x2960 or > > [log in to unmask] > > ________________ > > ________________________________ > > This message and any attachments are solely for the use of the > > addressee and may contain L-3 proprietary information that may also be > > defined as USG export controlled technical data. If you are not the > > intended recipient, any disclosure, use or distribution of its content > > is prohibited. Please notify the sender by reply e-mail and > > immediately delete this message and any attachments. > > > > ______________________________________________________________________ > > This email has been scanned by the Symantec Email Security.cloud service. > > For more information please contact helpdesk at x2960 or > > [log in to unmask] > > ________________ > > > > ______________________________________________________________________ > > This email has been scanned by the Symantec Email Security.cloud service. > > For more information please contact helpdesk at x2960 or > > [log in to unmask] > > ______________________________________________________________________ > > > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. 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