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Public Lab Fellows Program

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CSF16

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Testing Our Waters

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BabyLegs KS

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The Sand Sentinel Program

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Local reporting on frac sand mining issues

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rs806 commented on Automating NDVI calibration over 2 years ago

Okay thanks Ned! I had been wondering about the structure of the csv file since, judging from the...

pdhixenbaugh commented on an answer about How is stormwater regulated? over 2 years ago

As an add-on, most stormwater flows into storm drains and directly into streams without treatment...

pdhixenbaugh commented on Are there any exemptions under the NPDES? over 2 years ago

Some other things -- certain types of industries can ask for an exemption from this permit if the...

pdhixenbaugh commented on What types of NPDES permits are there? over 2 years ago

The general permits also come in different variants, and the Municipal Separate Storm Sewer Syste...

warren commented on A kit to design your own formaldehyde experiment? over 2 years ago

I managed to cobble together an Arduino program to try this out: Button turns on one of two fans...

warren commented on Air Quality Monitoring at UWEC over 2 years ago

My chia seeds are taking a while; I really like the idea of testing the camera out with sprouts, ...

nedhorning commented on Automating NDVI calibration over 2 years ago

The CSV file for the R script is different form the table in the "Improved DIY NIR camera calibra...

rs806 commented on Automating NDVI calibration over 2 years ago

@nedhorning Hello Ned thank you for posting the R script. I'm finding it helpful to understand th...

warren commented on A Test For Household Radiation over 2 years ago

Hi, I remember a radiation test of some kind in my basement when I was a kid; I wonder if it was ...

GreenFrogg commented on Volunteering in Smartemission network Nijmegen Netherlands over 2 years ago

Now on LinkedIn: The calibration model, based on Artificial Neural Network (ANN) algorithms, for ...

warren commented on an answer about Calibration of spectra fails over 2 years ago

Ah, so glad it worked. Yes, it's a lot of data for the database to handle per spectrum!

loganw commented on New possibilities for a low-cost gas camera over 2 years ago

@stevie: The sensor is probably too noisy to actually work for methane. There's some further stuf...

stevie commented on New possibilities for a low-cost gas camera over 2 years ago

Hi! was hearing from a number of groups in CO this week about interest in low cost methane sensin...

warren commented on DIY Formaldehyde Test Kit over 2 years ago

Oh, also just for ref, the idea i posted is here: https://publiclab.org/notes/warren/02-09-2017/a...

liz commented on Measuring Air Quality (PM) @ new years eve during fireworks over 2 years ago

Fantastic map!

liz commented on ShenangoChannel.org - a dashboard for monitoring and sharing over 2 years ago

@warren i'm not sure if any of the Shenango Channel contributors have Public Lab usernames. Glad ...

warren commented on ShenangoChannel.org - a dashboard for monitoring and sharing over 2 years ago

Also talking with a bunch of the folks who've been working on this and wanted to add a link to th...

GreenFrogg commented on Measuring Air Quality (PM) @ new years eve during fireworks over 2 years ago

History of each sensor point now available for evaluation. It's downloadeble as an Exel file. Jus...

Javi commented on an answer about Calibration of spectra fails over 2 years ago

Tested a scaled version of the image: 2000 pixels wide: https://spectralworkbench.org/spectrums/...

Javi commented on an answer about Calibration of spectra fails over 2 years ago

Yes, always see the warning about the tags. :( The image is unprocessed, as taken from the...

warren commented on an answer about Calibration of spectra fails over 2 years ago

OK, so it's not that it's too large a file size, but it's over 4000 pixels wide, so I think it's ...

warren commented on an answer about Calibration of spectra fails over 2 years ago

Although actually now that I look, it's only 500k, so I guess I was wrong about that. Trying to r...

warren commented on an answer about Calibration of spectra fails over 2 years ago

Hi, Javi - i think one issue is that your image is really large... i wonder if you uploaded a cro...

warren commented on an answer about Calibration of spectra fails over 2 years ago

Hi, did you also see "Tag you've applied couldn't be saved"?

Javi commented on Calibration of spectra fails over 2 years ago

https://spectralworkbench.org/spectrums/99686 Thanks, Javi

warren commented on an answer about Calibration of spectra fails over 2 years ago

Hi, can you link us to your spectrum so we can try it out?

Dave-O commented on DIY Formaldehyde Test Kit over 2 years ago

You're welcome, @nshapiro ! Is this the same EPA approved method that you used? https://www3.epa....

rthalman commented on 3D printed mini spectrometer over 2 years ago

Ok, so here are the links to shapeways: Absorption Cell Body: https://www.shapeways.com/model/3dt...

nshapiro commented on DIY Formaldehyde Test Kit over 2 years ago

Thanks, @Dave-O ! We did some side by side testing of this method next to an EPA approved method ...

Testing wines with UV-visible spectrometry

by warren over 7 years ago | 0 | | 374 | 0

Thermal flashlight temperature key

by warren over 7 years ago | 2 | | 60 | 2

Ultraviolet spectroscopy test at ~350nm

by warren over 7 years ago | 2 | | 93 | 0

Tracking contributions to open source projects

by warren over 7 years ago | 0 | | 2,098 | 0

Temperature during Thatchmore Farms flight

by warren over 7 years ago | 0 | | 44 | 2

Press coverage at UKY

by jeremy over 7 years ago | 2 | | 63 | 2

Thatchmore farms hypr3d model

by warren over 7 years ago | 4 | | 130 | 0

SPECTRAL LINE CALIBRATION

by xiphmont over 7 years ago | 6 | | 50 | 2

Anticipating sea-level rise in Louisiana

by Shannon over 7 years ago | 1 | | 20 | 2

Circuit Diagrams for 5V Melexis Sensor

by sara over 7 years ago | 7 | | 165 | 0

Infrared photography sketches

by warren over 7 years ago | 0 | | 1,360 | 0

Recent citizen/open science articles

by warren over 7 years ago | 0 | | 15 | 2

Air-testing hamster ball progress

by warren over 7 years ago | 0 | | 87 | 0

Hydrogen Sulfide Testing-glove bag

by sara over 7 years ago | 3 | | 100 | 0

Picavet PET rig

by mathew over 7 years ago | 5 | | 261 | 0

Aurora Tang's Balloon Closing Method

by mathew over 7 years ago | 4 | | 170 | 2

Android phone hacked as radiation detector

by warren over 7 years ago | 1 | | 66 | 0







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CSF16

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organizing

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Testing Our Waters

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BabyLegs KS

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The Sand Sentinel Program

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