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warren commented on Collaboratively write the new Pocket Guide to Grassroots Mapping

Final cover with CC-BY-SA, in negative and positive: balloon-mapping-booklet-cover-negative.pdf...

23 comments » 3 months ago

warren commented on What is the hydrogen sulfide concentration range that can be monitored using a copper tarnish method?

What's a good way to determine this? Would it work to set up a test somewhere there is H2S, along...

1 comments » 3 months ago

warren commented on Having Fun Testing Attachments

I filed an issue for what I believe is a related factor in the rich text editor library we use: h...

1 comments » 3 months ago

liz commented on What is the best way to formalize connecting needs with offers?

i wanted to add some relevant terminology from the amazing g0v community as we work on conceptual...

2 comments » 3 months ago

31gane commented on DIY Spectrometer at Women in Photonics Week

@31gane awards a barnstar to isabellagonzalez for their awesome contribution!

1 comments » 3 months ago

warren commented on Quantitative analysis using paper-based kits

We're starting to compile a lot of different sensors and testing methods here -- could be of help...

5 comments » 3 months ago

kayaerbil commented on Oil Chemistry of Keystone Leak

I am in touch with someone who lives in Standing Rock who used to work for the EPA and left becau...

5 comments » 3 months ago

warren commented on Collaboratively write the new Pocket Guide to Grassroots Mapping

balloon-mapping-booklet-cover.pdf

23 comments » 3 months ago

Reallygeek commented on Spectral Workbench API

The links on the "View commented code for more detail." lead nowhere.

2 comments » 3 months ago

warren commented on cek

Hi! What are you looking to do here? Can we help?

1 comments » 3 months ago

warren commented on 1. Setting up the Raspberry Pi Camera for Wireless Streaming

Hi! http://partsandcrafts.org/pi_microscope/raspbian_preload isn't working for me -- and how big ...

8 comments » 3 months ago

cfastie commented on Engineered Histograms

I used Fiji (ImageJ) to make the histograms of the NDVI images. Fiji will make a couple of differ...

17 comments » 3 months ago

warren commented on Collaboratively write the new Pocket Guide to Grassroots Mapping

And cover design coming together here! https://docs.google.com/presentation/d/1ochr6gQm6JO-Eg0Nzt...

23 comments » 3 months ago

Tehnicni commented on PLab Spectrometer Gain-Correction

How a stupid mistake. I checked linearity of all 3 cameras at three points, thinking that it have...

25 comments » 3 months ago

warren commented on Autonomous Recording Unit

Wow, this is a great page! If you're still working on it, we'd love to see some updates -- we're ...

1 comments » 3 months ago

warren commented on What information do I need to assess if a data logger and sensor will be compatible?

@cfastie - i remember you highlighted a few different interfaces Arduinos can use -- i2c, analog....

2 comments » 3 months ago

warren commented on Hydrogen Sulfide Testing With Black and White Film

Also note this PDF version! https://i.publiclab.org/system/images/photos/000/004/830/original/H2S...

3 comments » 3 months ago

amirberAgain commented on Overview: Hackteria Remix: Building a Basic Microscope with Raspberry Pi

This looks really nice! I'll start assembling the parts! in the mean time, a small suggestion: pl...

3 comments » 3 months ago

plnedestroyer commented on Engineered Histograms

@cfastie did you use a plugin to get the color histogram for the ndvi, because I am creating ndvi...

17 comments » 3 months ago

warren commented on Simple data logger

I also like the prospect of an Atmega 328 with no SD card for logging. How much of the 32k memory...

10 comments » 3 months ago

warren commented on Water Filter Effectiveness

There are also a number of resources on turbidity monitoring -- DIY and otherwise, here: https://...

1 comments » 3 months ago

stevie commented on Quick Build: Basic Microscope Kit with Raspberry Pi

@stevie awards a barnstar to partsandcrafts for their awesome contribution!

13 comments » 3 months ago

stevie commented on Putting sensor data to work

@stevie awards a barnstar to cfastie for their awesome contribution!

1 comments » 3 months ago

stevie commented on 1. Setting up the Raspberry Pi Camera for Wireless Streaming

@stevie awards a barnstar to partsandcrafts for their awesome contribution!

8 comments » 3 months ago

nshapiro commented on Oil Chemistry of Keystone Leak

Interesting question! if you'd like to elaborate a bit more on your thoughts or talk about how th...

5 comments » 3 months ago

stoft commented on PLab Spectrometer Gain-Correction

@Tehnicni, I'd agree that any detector-specific non-linearity is likely very small compared with ...

25 comments » 3 months ago

Reallygeek commented on How do I find where and how to download the spectroscope software on the Public Lab site?

you can use any basic camera, and infrared is acceptable, you get even take an infrared filter ou...

1 comments » 3 months ago

Reallygeek commented on What are sources for existing environmental data?

there's government sources, like parks and recreations, forestry services, national park stuff th...

1 comments » 3 months ago

Risks to public comment

by liz 3 months ago | 3 | 1

Tehnicni commented on PLab Spectrometer Gain-Correction

Question for @stoft. According to my measurements, the CMOS sensor has some sort of blooming effe...

25 comments » 3 months ago

cfastie commented on Solar ballon flight trajectory visualization

It's really good to see these flight trajectories. I think it's an important way to document a fl...

5 comments » 3 months ago

Putting sensor data to work

by cfastie 3 months ago | 1 | 1

Water Wise NOLA Rain Barrel Build!

RSVP

Event by stevie 3 months ago | 0 | 0

MapKnitter map of CAPA

by araaman 3 months ago | 0 | 0

How do you build a rain barrel?

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Question by stevie 3 months ago | 0 | 1

Yule logging

by cfastie 3 months ago | 9 | 3




A shared knowledge base for community science

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replication-template

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SoC ideas

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Kite-Balloon Hybrid

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Odor

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Odor

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