| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| eustatic | "you are the boss. Awesome. I have some GCM field sampling notes, and those forms echo what David Mack just typed. Although i suppose weather isn..." | Read more » | almost 9 years ago | |||
| DavidMack | "That's great work. The videos are very well done and have a lot of info explained in a nice, straight forward manor. I like the photo card. Add ..." | Read more » | almost 9 years ago | |||
| liz | "Consider using a detachable/reusable mounting system for the battery pack. I will look into velcro. " | Read more » | almost 9 years ago | |||
| liz | ""When you are done with the test, slide the switch back to the right. This will prevent the batteries on the timer from being drained." " | Read more » | almost 9 years ago | |||
| liz | "Add the Kitigawa tube instructions: once you receive the kit in the mail, store the tubes in the refrigerator. Ideal 32-50 degrees F. " | Read more » | almost 9 years ago | |||
| danbeavers | "Just if you use the volume of a bag keep in mind the Combined Gas Law. " | Read more » | almost 9 years ago | |||
| mathew | "awesome! glad the instructions worked for you! I'm putting 2-meter cords in the newer prototypes. We won't be able to run these on battery power t..." | Read more » | almost 9 years ago | |||
| liz | "Just ran my first test! Thanks for these great instructions! I would add a couple things to the instructions: As the power cord is less than a me..." | Read more » | almost 9 years ago | |||
| kevintzoa | "@nshapiro @mathew @marlokeno Hey, Kevin here from TZOA. I met Shannon Dosemagen of PublicLab at an EPA event last year. Happy to answer any questio..." | Read more » | almost 9 years ago | |||
| mathew | "@DavidMack Now we're talking! I've done this before to measure higher volume airflow, but never thought to add the pop valve. I really like that. ..." | Read more » | almost 9 years ago | |||
| DavidMack | "Looks nice. I had an idea for an alternate gas volume measurement technique whereby you connect the exhaust side of the pump to a deflated bag the..." | Read more » | almost 9 years ago | |||
| nshapiro | "This looks great! Maybe they could also mark the two solid black lines in addition to the color change so there is less ambiguity on the measurment..." | Read more » | almost 9 years ago | |||
| danbeavers | "Then my other concern is how does the used tube flow rate change over several days or weeks since there are chemical reactions occurring that might..." | Read more » | almost 9 years ago | |||
| mathew | "this setup will flow 9 liters in 30 minutes, +/- variation in the tubes. I worked to isolate that variation to the tubes, and @gretchengehrke and ..." | Read more » | almost 9 years ago | |||
| danbeavers | "It appears that you believe this setup will flow 9 liters in 30 minutes. Perhaps I missed the data but I thought there was significant variation b..." | Read more » | almost 9 years ago | |||
| mathew | "@DavidMack Good catch! My notebook measures test 2 at 38.78, right next to 39.78 for the next test! I edited the note. thanks! You're right abou..." | Read more » | almost 9 years ago | |||
| DavidMack | "@mathew Great work and the title is appropriate! Sometimes when I’d compare instruments head to head it would be referred to a “shoot out”—an inst..." | Read more » | almost 9 years ago | |||
| warren | "Yeah Dan, I later realized that a draw valve at the top would be better than a push valve at the bottom, and I think it'd mean the gasket would be ..." | Read more » | almost 9 years ago | |||
| danbeavers | "@warren How do you start the timer? I don't see a sensor for the start, only the end. Another set of electrodes appear necessary. Will that set ..." | Read more » | almost 9 years ago | |||
| warren | "Wow, very cool. I'm thinking of what kinds of vessels could be easily adapted to a DIY version of the sort of spring-loaded bubble making frame in ..." | Read more » | almost 9 years ago | |||
| mathew | "awesome! " | Read more » | almost 9 years ago | |||
| warren | "Hey @mathew - wrote up a driver for the Dylos - it was very simple, just listening and it returns "0,0" every so often. If there's a manual or some..." | Read more » | almost 9 years ago | |||
| mathew | "ran some tests on the different Kitagawa tubes that have been used. I put the end into the drilled-out brass tube I've been using to break them, a..." | Read more » | almost 9 years ago | |||
| mathew | "I bought and tried a 50ml pipette and made a dropout jar. The jar kind of works-- some condensation still seems to get through, but never bubble..." | Read more » | almost 9 years ago |