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Comments

eustatic commented on MapKnitter map of Bayou Casotte on a calm, sunny day : " " | Read more » 11 days ago
cfastie commented on How similar is the code for the KnowFlow and the RIFFLE data loggers? : "Cool. We'll have to get a third answer or Gretchen won't know what to think. " | Read more » 11 days ago
eustatic commented on My DIY Formaldehyde test kit : "dot " | Read more » 11 days ago
eustatic commented on Riffle conductivity caps and other housing ideas : "dot " | Read more » 11 days ago
eustatic commented on using soap bubbles for pump calibration : "I ended up with pump calibration kit...did i kill the momentum on this project? signs point to yes @gretchengehrke I think mat did a youtube video " | Read more » 11 days ago
eustatic commented on Hydrogen sulfide badges by Morphix Technologies : "i'm tagging this and mathew's volume calibration video with "h2s" " | Read more » 11 days ago
eustatic commented on Mississippi Phosphates: Better air for Alice : "Here's a sample of Water from Bayou Chicot, I think, from 2016. I have to ask Howard. https://www.flickr.com/photos/healthygulf/26540680646/ I t..." | Read more » 11 days ago
eustatic commented on Mississippi Phosphates: Better air for Alice : "Halter Marine is also a facility, a ship / paint stripping yard in the south of that oct 11th photo. here's a video of the plume of metal shavings..." | Read more » 11 days ago
eustatic commented on Mississippi Phosphates: Better air for Alice : "Oh, hello post. Sadly, Barbara is still at it. MS Phosphates pollutes the water, as well, which is my subject area. Here is an overflight photo ..." | Read more » 11 days ago
danbeavers commented on Depth Sensor Proposal - Experimental Results : "By the tube, I assume you mean the manometer. The most accurate way to accomplish this would be to make a scale that is calibrated to your setup a..." | Read more » 11 days ago
stevie commented on Depth Sensor Proposal - Experimental Results : "great PDF write up. say someone was to mount the tube on the wall where the water changes. What might a scale look like for it that could be posted..." | Read more » 12 days ago
mrw0116 commented on Helium alternative : "Chris, thanks much for these details. This gives me a much better idea of costs and how much helium I might need. " | Read more » 13 days ago
mrw0116 commented on Helium alternative : "Thanks, Warren. Good to know, but a little scary. " | Read more » 13 days ago
Johnix commented on Calibration Issues with larger images : "I tried again with the same image at 1080x1440, no success. I further reduced it to 540x720, and I was able to run my calibration. Thanks a lot fo..." | Read more » 13 days ago
Johnix commented on Calibration Issues with larger images : "Hi Warren, thanks for replying. Yes, that's quite possible. The picture is 3456*4608 pixels, 1.25 MB (taken with a recent smartphone) " | Read more » 13 days ago
danbeavers commented on Depth Sensor Proposal - Experimental Results : "In electrical terms this is analogous to measuring the voltage across a resistor to determine current where the pressure is voltage and the needle ..." | Read more » 13 days ago
danbeavers commented on Depth Sensor Proposal : "Go here to see the results from experimentation. " | Read more » 13 days ago
kgradow1 commented on Arsenic detection in well water with spectrometry : "This is really exciting. Are you planning to do a flame test for this? (I'm pretty unfamiliar with arsenic) " | Read more » 13 days ago
Zengirl2 commented on MapKnitter map of lumcon barnraising 2017 : "@eustatic This is a great example and I do believe I see sunlight glint and not oil sheen. :) " | Read more » 14 days ago
momosavar commented on Potentiostat Notes-3; WheeStat 5.1 Fabrication : "Hi @jsummers I downloaded processing and exported the application. Thank you very much " | Read more » 14 days ago
warren commented on Optika Game 2 : "Hi! Can you tell us a bit about your project here? Thank you, and welcome! " | Read more » 15 days ago
liz commented on Share Your Barnraising 2017 Photos! : "Here is Molly's presentation on dynamics in the Linux kernel mailing list: mdb-barnraising2017-f-as-in-freedom.pdf " | Read more » 15 days ago
warren commented on Arsenic detection in well water with spectrometry : "Hi, this is fascinating, do you have a link to a study you're working from? What concentrations do you think you'd be able to detect, and do you ha..." | Read more » 15 days ago
warren commented on Hydrogen Sulfide Dosimeter : "Nice! ChemSee's H2S-KT1 contains two hydrogen sulfide dosimeters, FULL USE INSTRUCTIONS and in-lab analysis by ChemSee. Together, these two items ..." | Read more » 16 days ago
shanlter commented on How does Riffle compatible with 5V sensors? : "Hi Dan, thanks very much! So basically, what I need is to connect (at least) DO and pH sensors to Riffle. My collaborator said that using a voltage..." | Read more » 17 days ago
shanlter commented on How does Riffle compatible with 5V sensors? : "Thanks very much! The link of your website is very helpful! I will try when I receive a riffle : ) " | Read more » 17 days ago
oglezsa commented on Can I use a Diffraction Grating Slide Holographic 1000 lines/mm instead of the CD? : "Will do. Thank You. " | Read more » 18 days ago
cfastie commented on How does Riffle compatible with 5V sensors? : "Although there are sensors that require more than 3.3V, most of the simple DIY sensors are designed to use 3.3V. For example, all of the sensors he..." | Read more » 18 days ago
cfastie commented on How does Riffle compatible with 5V sensors? : "Further empirical evidence suggests that the VBAT pin delivers the voltage of the battery that is plugged into the "Lithium 3.7V" connector, but no..." | Read more » 18 days ago
mathew commented on Solar Hot Air Balloons : "beautiful flight @suman! " | Read more » 18 days ago