Author | Comment | Last activity | Moderation | ||
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nshapiro | "Gotcha. In my testing in 2011 i did some of the test and mailed test kits to those i couldn't meet in person. altho it wasn't statistically signifi..." | Read more » | almost 9 years ago | |||
nshapiro | "This is great. The vintage timers are pretty amazing although they add a lot of weight and thus money and are not tamper proof. We could just inclu..." | Read more » | almost 9 years ago | |||
nshapiro | "Great. I've ordered the last two as they have the accuracy we need--will report back by the end of the week. way cheaper than the one i had found. ..." | Read more » | almost 9 years ago | |||
nshapiro | "It looks like most of the cheap hygrometers are of the coil and dial variety which I worry about the robustness of. This one is temp and humidity ..." | Read more » | almost 9 years ago | |||
nshapiro | "This looks! great! what do you think the QR code would be? We might need there to be a solid color that the tube is placed on top of for consistenc..." | Read more » | almost 9 years ago | |||
nshapiro | " There we go! working now. " | Read more » | almost 9 years ago | |||
nshapiro | "Hey Jeff, The card mock up is 5x8. The alcohol thermo and humidity meter is 9x 2.5 at its thickest point. I have 2 inch diameter coil spring humid..." | Read more » | almost 9 years ago | |||
nshapiro | "@danbeavers do you know the duty cycle of the AC when you did the follow up testing? " | Read more » | almost 9 years ago | |||
nshapiro | "we would probably want 1 degree accuracy as the visual read out of the tube has to be multiplied by a temperature coefficient on a 1 degree scale. ..." | Read more » | almost 9 years ago | |||
nshapiro | " Here is what the thermo and humidity meter look like next to the card. We could still use an alcohol thermo, this one is just a bit clunky. Also ..." | Read more » | almost 9 years ago | |||
nshapiro | "@danbeavers were you using the whisper pump or another pump? I think the whisper pump can handle one pump and one vacuum if need be " | Read more » | almost 9 years ago | |||
nshapiro | "My favorite memory so far is the kinds of sustained, difficult and trans disciplinary conversations that I've been privy to in my short time workin..." | Read more » | almost 9 years ago | |||
nshapiro | "also you probably don't need to vacuum seal the sensors. you could just cut wholes on the bottom of those tupper wear and it will probably be weath..." | Read more » | about 9 years ago | |||
nshapiro | "It depends how far from the infrastructure you will be monitoring and what infrastructure you will be monitoring. Some states have the geology for ..." | Read more » | about 9 years ago | |||
nshapiro | "Hey @claf I'm doing some air monitoring work in areas of intensive fracking here in PA (weather variables, formaldehyde, ultrafine particulate matt..." | Read more » | about 9 years ago | |||
nshapiro | "@mathew I just ordered the temp/humidity meter you recommended. In terms of design maybe it can fit horizontally under the A, B, C columns? " | Read more » | about 9 years ago | |||
nshapiro | "Sorry for the slow reply! I think my spam filter may have been hoarding emails from PL. The color changes from a waxy yellowish orange to pink and..." | Read more » | about 9 years ago | |||
nshapiro | "Here is some alternative tech to the FLIR-- hyperspectral camera for methane visualization (which is one of the most expensive gases to monitor). M..." | Read more » | about 9 years ago | |||
nshapiro | "I think so. Those tubes require one pump on the Draeger Tube proprietary pump. So if one were to rent their proprietary pump for a single day and a..." | Read more » | over 9 years ago | |||
nshapiro | "That sounds like a great idea. The flow meter remains the most expensive component so reducing this cost is clutch. This sounds like something that..." | Read more » | over 9 years ago | |||
nshapiro | "Thanks, David! This is really helpful! " | Read more » | over 9 years ago | |||
nshapiro | "Hey David, yes, you are absolutely right. Ventilation in situations with clean outdoor air is definitely the best short-term option. It is cheap/fr..." | Read more » | over 9 years ago | |||
nshapiro | "Thanks @amysoyka! That's really interesting. Do you know if lactic acid is known to break down formaldehyde and that the outputs of that breakdown ..." | Read more » | over 9 years ago | |||
nshapiro | "Hi willie! Its a great project! I haven't read the Apte documentation, but mobile sensing does create some difficulties in terms of maintaining the..." | Read more » | over 9 years ago |