filter
filter


Author Comment Last activity Moderation
cfastie "Probably good that they didn't contact me. I would have said only "Blue filter?" " | Read more » about 6 years ago
nedhorning "Yes - the author contacted me shortly before posting the blog " | Read more » about 6 years ago
warren "@nedhorning @cfastie did you hear about this? We just learned of it! Amazing :-) " | Read more » about 6 years ago
Ag8n "Strike 2. The place I was referred to intends to start class 100 k testing in the near future.... But not now. " | Read more » about 6 years ago
Ag8n "The best way to test a HEPA filter is with an air particle counter. Thought I could borrow one from a local university. They do not have one. It..." | Read more » about 6 years ago
Ag8n "I don't know if you have a protocol in mind, but let me know exactly what you want. I also need to do some digging. May be able to find a particl..." | Read more » about 6 years ago
warren "@Ag8n that sounds really good -- do you have a box fan and want to try it? I'm also interested in whether we could compare a clean filter to one us..." | Read more » about 6 years ago
Ag8n "How about using foam pipe insulation and adhesive for the frame? Then hold the filters in place with bungee cords? Maybe as a cost savings? " | Read more » about 6 years ago
Ag8n "Something similar has been used as an improvised food dehydrator for years. See some of the old episodes of Good Eats. Wonder if the dehydrator w..." | Read more » about 6 years ago
zengirl2 "@warren Yes! Can't do until later this week, but we should definitely expand. " | Read more » about 6 years ago
warren "@zengirl2 - heard you were talking about doing this -- shall we collect up some info on a new wiki page using a method template? " | Read more » about 6 years ago
warren "There are also a number of resources on turbidity monitoring -- DIY and otherwise, here: https://publiclab.org/wiki/turbidity " | Read more » over 6 years ago
warren "There's also this post by @shanlter which could be helpful? https://publiclab.org/notes/shanlter/12-17-2015/waterfilter-kits-for-rural-chinese I ..." | Read more » over 6 years ago
warren "I think they're 4 inches, not 5 -- sorry for the slow response! " | Read more » over 6 years ago
robotfarms "Thanks, I just ordered a pack. " | Read more » over 6 years ago
williampasco "Creo que del tamaño de un smartphone de 5 pulgadas, está buena esa máquina envía noticias de eso estoy interesado mucho en el control de hierbas. P..." | Read more » over 6 years ago
iolanthe82 "@iolanthe82 awards a barnstar to abdul for their awesome contribution! " | Read more » over 6 years ago
Mempet "Hi @gretchengehrke! Thanks for letting me know about this! I might actually be able to use it. However, one complication I have is the amount of li..." | Read more » over 6 years ago
gretchengehrke "Hi @Mempet, Could you use a turbidity tube like this one: https://www.carolina.com/environmental-science-water-quality/carolina-turbidity-tube-120-..." | Read more » over 6 years ago
maltheR "Thanks for the info... I was looking for it myself.. And big up for your photos, sir.. " | Read more » over 6 years ago
cfastie "The photos were processed with the Photo Monitoring plugin for FIJI which has a complete users guide. If you have any questions you can describe an..." | Read more » almost 7 years ago
saangpe "You could give more details about how to process the images with Fiji and tried to replicate this but I can not make the results conform to the sca..." | Read more » almost 7 years ago
sujayj "@cfastie This is very interesting. Thank you! " | Read more » about 7 years ago
cfastie "Yes, we are going to change the pixel values in our photo. For each pixel in the photo we have taken of vegetation, we use the DN in the red channe..." | Read more » about 7 years ago