| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Yes, i also don't know much about this, and if the airflow from the pump is enough to make it a concern... i guess any negative pressure is better ..." | Read more » | almost 8 years ago | |||
| jfrankamp | "Hi! Nice to digitally meet you. I asked Nick about that when I did my build because I had the same thought. The only downside he mentioned was tha..." | Read more » | almost 8 years ago | |||
| marlokeno | "@cfastie, @warren, @eustatic, and @martenskram- Thanks for your help clarifying ideas & procedures. As it's winter and cold, indoor air is ofte..." | Read more » | over 8 years ago | |||
| cfastie | "In these experiments, the bubbler will increase the humidity in the chamber or room. That alone could reduce the dust in the air (by dampening the ..." | Read more » | over 8 years ago | |||
| warren | "Very neat idea -- I guess I agree with Chris that it may not matter if diatoms metabolize the silica, if the silica is already transfered from the ..." | Read more » | over 8 years ago | |||
| eustatic | "I'm unsure about the claims, but at least one vaccuum company advertises that its unit can 'wash' the air. Of course, the unit moves a larger volu..." | Read more » | over 8 years ago | |||
| marlokeno | "Thanks to Chris for some lucid suggestions. I have some questions, and ideas for improvements after reading your post. Question: I don't understan..." | Read more » | over 8 years ago | |||
| cfastie | "If bubbling room air through an aquarium removes some dust from the air (including some silica dust) then growing diatoms in the water is not requi..." | Read more » | over 8 years ago | |||
| marlokeno | "Thanks for sharing your expertise, @martenskram. I didn't know that bubblers were inefficient under 1-2 µm. Your information about flow & part..." | Read more » | over 8 years ago | |||
| martenskram | "I hate to be pessimistic, but even a medium efficiency supply air filter is probably more effective in removing the dangerous particles (respirable..." | Read more » | over 8 years ago | |||
| marlokeno | "@eustatic -the graphic comes from a 1996 OSHA campaign, under then-sect'y of Labor, Robert Reich, who resigned in '97, he wrote, to spend more time..." | Read more » | over 8 years ago | |||
| eustatic | "dope graphic " | Read more » | over 8 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 » | about 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 » | about 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 » | about 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 » | about 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 » | about 9 years ago |