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New edit by joyofsoy

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about 3 hours ago

New edit by joyofsoy

Media

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about 3 hours ago

New edit by warren

CERN-OHL-1.1

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about 4 hours ago

New edit by wmacfarl

Simple Water Sensor Platform

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about 4 hours ago

New edit by wmacfarl

Simple Water Sensor Platform

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about 6 hours ago

nanocastro commented on Nuestros Suelos: a low-cost toolkit for the participative assessment of soil degradation about 7 hours ago

Hola Si, estamos trabajando desde hace ya un tiempo con Fernan. Estaría buenísimo si pudiéramos c...

macapola commented on Microscope not focusing right about 7 hours ago

HI! I have the same problem, did you find any solutions?

Meculus new contributor commented on Microscope not focusing right 1 day ago

I can get it to focus somewhat, but with an onion skin (the main thing I tried), and try to focus...

New edit by joyofsoy

Public Lab Nonprofit Team

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1 day ago

New edit by stevie

Public Lab Nonprofit Team

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1 day ago

stevie commented on Build a plant-based air purifier 1 day ago

That makes sense! Thanks for clarifying. On Wed, Jan 15, 2020 at 7:22 PM \<notifications@publ...

New edit by warren

Anonymity

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1 day ago

New page by wmacfarl

Simple Water Sensor Platform

1 day ago

warren commented on WHATS THE PRICE OF THE SPECTROMETER 3? 1 day ago

Hi, we have a few different options here! https://store.publiclab.org/collections/spectrometry

lev29 new contributor commented on How can I make IR photos derived from various cutoff useful for creating NDVI (normalized difference vegetation index) images? 2 days ago

Thank you, Chris! You've given me much to read and think about, but please, don't misconstrue tha...

cfastie commented on How can I make IR photos derived from various cutoff useful for creating NDVI (normalized difference vegetation index) images? 2 days ago

Using green foliage (or chlorophyll) to set a custom white balance deserves more consideration th...

larsonreever commented on A Card Game Approach to Community Mapping 2 days ago

I did this! These approaches to the problem made me think of a new way to create and discuss crea...

cfastie commented on How can I make IR photos derived from various cutoff useful for creating NDVI (normalized difference vegetation index) images? 3 days ago

The goal of the custom white balance hack is to fool the camera into wildly exaggerating the brig...

lev29 new contributor commented on How can I make IR photos derived from various cutoff useful for creating NDVI (normalized difference vegetation index) images? 3 days ago

Thank you so much, Chris! With respect to what to use as a reference to calibrate the White Balan...

cfastie commented on How can I make IR photos derived from various cutoff useful for creating NDVI (normalized difference vegetation index) images? 3 days ago

If your K610 filter is a cutoff filter that passes wavelengths greater than 610nm and blocks shor...

lev29 new contributor commented on How can I make IR photos derived from various cutoff useful for creating NDVI (normalized difference vegetation index) images? 3 days ago

Thank you, Chris, for helping to clarify my question. In fact, as you suspected, I was misusing t...

cfastie commented on How can I make IR photos derived from various cutoff useful for creating NDVI (normalized difference vegetation index) images? 3 days ago

`>> for simple bandpass filters, I use the letter "K" followed by the approximate cutoff wa...

New edit by Shannon

About Public Lab

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5 days ago

New edit by Shannon

About Public Lab

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5 days ago

stevie commented on What is the air flow requirement for air sampling tubes? Any inexpensive method? 5 days ago

I know @mathew did some work a number of years ago exploring air flow. Here's a link to some of t...

stevie commented on Which is more accurate in measuring formaldehyde: air sampling tubes vs RKI FP-30? 5 days ago

@nshiparo I was wondering if you have any ideas on these questions, or know who else we might rea...

radimir_cacic09 commented on Just some tests :) 5 days ago

Let’s see how this works with images or an embedded video. Is \ *markdown * parsed? Number 1...

keshavgarg234156 commented on What are ways to make dense CSV data more readable? 6 days ago

Whenever we have such large numbers of columns then we first perform correlation analysis before ...

radimir_cacic09 commented on Just some tests :) 6 days ago

Item 1 Item 2 Item 3

liz commented on Terrain Surveying with Emery Boards 6 days ago

thanks for explaining this application Scott, i understand it better now. Thank you for all your ...

liz commented on Is there a way to make a cheaper "UV Hound"? 6 days ago

Sharing back a response from Bryan Parras with permission: I'd love to be a part of developing a...

Ag8n commented on What is the air flow requirement for air sampling tubes? Any inexpensive method? 6 days ago

Check with the individual sampling tubes for airflow requirements. Most manufacturers also sell ...

Ag8n commented on Air sampling tubes for formaldehyde: which brand is accurate? 6 days ago

In industry, we commonly used draeger tubes to measure for a number of contaminants. There are o...

warren commented on Build a plant-based air purifier 7 days ago

Hi, I believe I remember @nshapiro saying that it provided a substrate for bacteria to grow - lot...

cfastie commented on Adafruit Feathers for datalogging 7 days ago

I have not heard of anyone using a microcontroller (Arduino or ESP board) to read data from an SD...

New page by joyofsoy

Celebrating ten years

8 days ago

stevie commented on Build a plant-based air purifier 8 days ago

@bostonfern and I were wondering what the purpose of the gravel is here. What function does it se...

stevie commented on Build a plant-based air purifier 8 days ago

@bostonfern and I were wondering what the purpose of the gravel is here. What function does it se...

Ag8n commented on What are the health impacts of the Aluf Plastics Plant from air pollution? 9 days ago

In the past, this company was using PVC ( polyvinylchloride). If this is still being used, the m...

sureta new contributor commented on Nuestros Suelos: a low-cost toolkit for the participative assessment of soil degradation 9 days ago

Hola Nano. Excelente. Nosotros felices de explorar formas de colaboración. Está muy bueno lo que ...

stevie commented on Emery Board as Bathymeter: ETP vs Beau Bayou 9 days ago

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

nanocastro commented on Nuestros Suelos: a low-cost toolkit for the participative assessment of soil degradation 10 days ago

hola @sureta estamos en Mendoza trabajando con gente de comunidad campesina tratando de desarroll...

New page by warren

unearthing

13 days ago

Test

by radimir_cacic09 14 days ago

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bywater

20 days ago

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Climate change

about 1 month ago

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Transportation

about 2 months ago

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Wetlands

about 2 months ago

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Workshops

about 2 months ago

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Orangetown Aluf

about 2 months ago

New page by stevie

Oil and Gas Water Quality

about 2 months ago







A shared knowledge base for community science

New edit by joyofsoy about 3 hours ago - changes

Media

New edit by joyofsoy about 3 hours ago - changes

Media

New edit by warren about 4 hours ago - changes

CERN-OHL-1.1

New edit by wmacfarl about 4 hours ago - changes

Simple Water Sensor Platform

New edit by wmacfarl about 6 hours ago - changes

Simple Water Sensor Platform

New edit by warren 1 day ago - changes

Anonymity

New edit by Shannon 5 days ago - changes

About Public Lab

New edit by Shannon 5 days ago - changes

About Public Lab

New page by joyofsoy 8 days ago

Celebrating ten years

New page by warren 13 days ago

unearthing

New page by warren 20 days ago

bywater

New page by joyofsoy about 1 month ago

Climate change

New page by stevie about 2 months ago

Transportation

New page by stevie about 2 months ago

Wetlands

New page by Bronwen about 2 months ago

Workshops

New page by stevie about 2 months ago

Orangetown Aluf

New page by stevie about 2 months ago

Oil and Gas Water Quality

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