answered
answered


Author Comment Last activity Moderation
amirberAgain "There are two devices I'm familiar with which could be relevant to your question: Nima - uses detection strips for gluten https://nimasensor.com/ ..." | Read more » almost 7 years ago
Ag8n "What do you think of the ones that are transparent on all four sides? That way the cuvettes can be used for trans, abs, flores, or turbidity. The..." | Read more » almost 7 years ago
Shannon "From Muki Haklay: Check Antonella Radicchi blogpost on the range of apps from last year http://www.opensourcesoundscapes.org/2016/08/28/a-tentative..." | Read more » almost 7 years ago
Primack "You can monitor noise with a smartphone. Some apps also give you the time and location, and allow you to export the data via email. This provides ..." | Read more » almost 7 years ago
Bronwen "Ah ha! Let's also have some: Tyvek tape or 3M construction tape Kite line and swivels. Well illustrated andbook including different kinds of kite s..." | Read more » almost 7 years ago
Ag8n "Metals usually take instruments like atomic absorption (AA) or inductively coupled plasma (ICP). These instruments can NOT be done easily on the P..." | Read more » almost 7 years ago
aldehyde "Hey folk, What kind of Framework (for Participatory PM2.5) can use for creating monitoring cities? " | Read more » almost 7 years ago
Ag8n "It sounds like Warren answered the question. I can give some more background. Proteins contain nitrogen, which isn't present in many other milk c..." | Read more » almost 7 years ago
stef "What I was alluding to is that with all of the filter attenuation, the cmos sensor was still overloaded. This can be seen in the spectra submitted..." | Read more » almost 7 years ago
Ag8n "There are two approaches to this, the hardware and software. Sounds like you took care of the hardware end very well. Can you think of any softwa..." | Read more » almost 7 years ago
warren "Hi, would this help? https://publiclab.org/notes/wagnerc4/02-05-2014/fat-percent-in-milk I think it's fat percent, not proteins, but it could be s..." | Read more » almost 7 years ago
stevie "One idea from @dswenson that came from the open call yesterday was to use materials like sticky yellow flytraps like these " | Read more » almost 7 years ago
stef "I have used photographic neutral density filters and have not been able to view the sun directly using the spec3 highly modified device. The attenu..." | Read more » almost 7 years ago
Ag8n "Could someone double check on xrf for h2s? Xrf works on electrons closest to the nucleus. It could detect sulfur, but not h2s unless paired with ..." | Read more » almost 7 years ago
Ag8n "Only one suggestion then. Sunlight can be strong. As a safety measure, partially block the sun and work your way up to full exposure. Might not ..." | Read more » almost 7 years ago
jsbonillam "I am going to make and analyse the graphs with the wavelength and absorption. " | Read more » almost 7 years ago
warren "@gilbert has compiled some more information on this over here: https://publiclab.org/notes/gilbert/09-22-2017/turbidity-mesurement-methods-regulati..." | Read more » almost 7 years ago
warren "Sounds like that was $100? " | Read more » almost 7 years ago
warren "@sara and @gretchengehrke have mentioned the "Corrosion Coupon" badge which uses both copper and silver -- I posted a question looking for some mor..." | Read more » almost 7 years ago
Bronwen "Here's something that looks like 2 tests for $30 (page is a little light on information beyond that) http://chemsee-foods.com/H2S-KT1 " | Read more » almost 7 years ago
guolivar "I tried to put a long answer here but it kept throwing errors so I wrote a note with my thoughts on this issue: https://publiclab.org/notes/guoliv..." | Read more » almost 7 years ago
Ag8n "Please forgive the question, but what lines are you using and what method of analysis? Thank you for the information. " | Read more » almost 7 years ago
warren "Ah, i see. That'd be this issue, also as-yet unsolved: https://github.com/publiclab/mapknitter/issues/192 Sorry, we're mobilizing to try to recrui..." | Read more » almost 7 years ago
warren "Oh, i don't know, but it looks very cool! " | Read more » almost 7 years ago