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bhamster commented on How to measure the pH of a solution with a purple cabbage? Its relation to water quality about 16 hours ago

I did this! We tested vinegar, baking soda, lemon juice, pickle juice, and carbonated water. A lo...

alejobonifacio commented on How to measure the pH of a solution with a purple cabbage? Its relation to water quality 1 day ago

Hi @Ag8n! Thanks for your reply! I had this cabbage solution in fridge almost a week and I didn't...

ethaniel commented on How to Open and Clean a PMS 5003 Air Sensor 6 days ago

I used your manual to clean my Purpleair PMS5003 sensor. Ended up messing both of them up (sensor...

StroudCenterScott new contributor commented on EnviroDIY Monitoring Station 9 days ago

Great question, @bhamster. You can send data to the Monitor My Watershed data sharing portal from...

bhamster commented on EnviroDIY Monitoring Station 9 days ago

Thanks so much for sharing this @StroudCenterScott! I had heard about the Mayfly data logger from...

bhamster commented on How to meassure plastics for BPA? 12 days ago

Thanks for this vital information @Ag8n!

Ag8n commented on How to meassure plastics for BPA? 12 days ago

The nir instruments are heavily used in agriculture. The company I worked for wanted to use Near ...

Ironman new contributor commented on How to meassure plastics for BPA? 13 days ago

Thanks for all your answers and help. But solving all kind of plastics or swapping them with iron...

Ag8n commented on How to meassure plastics for BPA? 13 days ago

Please go to the web page mentioned. You will see that this test works by reacting the extract w...

stevie commented on Seeking Frontline Community Organizers to lead Public Lab’s Fellowship Teams 14 days ago

@stevie has marked @stevie as a co-author.

bhamster commented on How to meassure plastics for BPA? 14 days ago

There are some potential leads in this Twitter thread (screenshot below) Thanks @liz and @sara...

Ag8n commented on How to meassure plastics for BPA? 15 days ago

A better approach would be Uv/ vis. Phenols, such as BPA, absorb at about 280 nm. So you would ...

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Open Call

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15 days ago

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Events

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15 days ago

liz commented on Printable 3D Spectometer 15 days ago

Thanks this is great! thank you @mdiego2798

liz commented on Stetson University Ponce Preserve Aerial Map 10/7 15 days ago

nice stitch!

deeptalaxmibharadwaj commented on Building Snake Plant Air Remediation kit in Bangalore, India 16 days ago

Thanks for the good comment. You could try find snake plants or a species of them in sub tropical...

warren commented on Use Git and GitHub to contribute and improve Public Lab software 21 days ago

Sorry Cess I must've missed this email. Yes let's change it for sure. Ok, done!

xavcc commented on Training on "Bioassay Test with seed to expose toxicity" 23 days ago

Thank you @Ag8n for pointing it. Yes, it is. I wrote it in the list. I hope the upcoming images w...

Ag8n commented on Training on "Bioassay Test with seed to expose toxicity" 26 days ago

Please tell me if this is correct. Is a double decimeter also called a ruler calibrated in centi...

Ag8n commented on Water analysis / General presentation 27 days ago

Thank you for the reply. The new page is much better. As for quartz cuvettes, I used them for 2...

xavcc commented on Water analysis / General presentation 27 days ago

Hi @Ag8n, Thank you for checking. I wrote an ambiguous nomination fro this container. I just corr...

warren commented on Can NOIR camera distinguise different types of leaf? 27 days ago

If you open "camera settings" on the camera page you can adjust the white balance as described he...

shahdharam7 commented on Why Red filter results are blurry compared to Blue filters? 27 days ago

Hi warren, Thank you for your response. I have used PI camera as mentioned in the link below. h...

shahdharam7 commented on Can NOIR camera distinguise different types of leaf? 27 days ago

Hi Warren, Thank you for your reply. Image (2) and (4) are taken using infragram pi camera. The...

Ag8n commented on Water analysis / General presentation 27 days ago

I think this is a typo. Under container material, the first entry is quartz(a crystalline silica...

warren commented on Why Red filter results are blurry compared to Blue filters? 28 days ago

Sometimes different cameras use only one channel to focus, in order to work faster (less time com...

warren commented on Can NOIR camera distinguise different types of leaf? 28 days ago

Hi, good questions! You may want to try doing a better white balance to try to get better signal...

benji_liang96 commented on All in One Portable Anesthesia System for experimental animals 28 days ago

Hi How does your setup work to regulate the amount of isoflurane in the system? Would it be possi...

Ag8n commented on possible estrogen culture vessels... 28 days ago

Need some more information. But have a couple of ideas!!

bhamster commented on Data Divide: Kathmandu Living Labs & OpenStreetMap 29 days ago

Loved seeing the testimonies from mappers in the presentation about how their experience of mappi...

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Events

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29 days ago

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Open Call

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29 days ago

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Events

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29 days ago

stevie commented on Formosa Plastics around the world 29 days ago

@stevie has marked @caitlion as a co-author.

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Reviews

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29 days ago

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Reviews

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30 days ago

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Research Area Reviews Archive

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30 days ago

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Home Testing for Endocrine Disruptors

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30 days ago

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Air Quality Data

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about 1 month ago