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Research by warren 8146 research notes and wiki edits starting about 7 years ago

What different electronic particulate pollution sensors are available and at what cost?

by warren 1 day ago | 0 | 92 | 1

I'm collecting some notes from across the site, including the #air-sensors and #particle-sensing ...

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What is "immersion oil" for microscopes?

by warren 1 day ago | 1 | 74 | 2

I've seen some microscopes use "immersion oil" -- like, an oil between the lens and the slide. Wh...

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Call for Summer of Code 2018 proposals!

by warren 2 days ago | 2 | 90 | 3

We're part of two different summer fellowship programs this year, [Rails Girls Summer of Code](...

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Visualize live sensor data with p5js and an Arduino

by warren 10 days ago | 4 | 246 | 2

(This is a draft!) I made a simple p5js sketch (read below) to live sensor data off of an Arduino...

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Local Environmental Action 2018 in Boston

by warren 12 days ago | 0 | 118 | 1

Join community leaders, environmental justice advocates and activists from across the region to...

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Web Working Group Update 21: January 2018

by warren 13 days ago | 0 | 108 | 5

We've had a pretty wild month in our software contributor community. After an [already busy D...

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Is there a way to view EPA's Toxics Release Inventory on a map, or by location?

by warren 17 days ago | 1 | 100 | 0

I wanted to view nearby reports in the TRI, and via the EPA's site, I found: https://www.epa....

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CivilServant Community Research Summit, community, society and moderation systems

by warren 21 days ago | 2 | 106 | 2

I spent today at the CivilServant summit, where Nathan Matias and oth...

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Do people who collaborated at the Madeira Open Institute event have photos to share?

by warren 21 days ago | 1 | 120 | 0

I worked with some fantastic folks this past December and we did some balloon and kite mapping wo...

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What are different ways to collect respirable dust samples for analysis?

by warren 23 days ago | 0 | 104 | 0

I've seen filters, swabs, sticky pads... what are some options, and pros/cons of each type? ...

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How do we do user interface design work in a community process?

by warren 26 days ago | 2 | 106 | 1

With generous support from Autodesk, @caufenkamp, @tommystyles, @julvie and I have been meeting f...

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MapKnitter update: very high resolution mapping

by warren 29 days ago | 1 | 155 | 3

For the first time in a while, we've updated -- after the...

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Pre-order the community written Pocket Guide to Grassroots Mapping

by warren about 1 month ago | 3 | 137 | 2

This 3.5 x 5.5 inch illustrated booklet was printed at the AS220 community print shop by Jacque B...

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Software outreach: Modularity is great for collaboration

by warren about 1 month ago | 0 | 155 | 7

Just as Summer of Code deadlines are looming, I wanted to write a bit about modularity...

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What are materials we could include in a Kite Making Materials Pack?

by warren about 1 month ago | 1 | 96 | 0

The Public Lab Kits initiative is considering different materials packs to help people prototype ...

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An amazing week of software contributing at Public Lab

by warren about 1 month ago | 0 | 147 | 3

Hi, everybody - i'm just opening an issue to say THANK YOU to everyone who's been coding here rec...

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What are different methods of measuring water turbidity?

by warren about 1 month ago | 0 | 127 | 1

We've compiled some at and

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Is there more information on the "Corrosion Coupon" hydrogen sulfide test kit?

by warren about 1 month ago | 0 | 117 | 0

How much does it cost? Where can we find it and how sensitive is it? Thanks!

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How is water turbidity regulated?

by warren about 1 month ago | 1 | 131 | 1

What are the regulations and laws surrounding water turbidity in the US and elsewhere?

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What lab tests are available for hydrogen sulfide, and how much do they cost?

by warren about 1 month ago | 1 | 134 | 1

@sara mentioned a $35 test at a Harvard lab and an XRF or X-ray Fluorescence test - what kinds of...

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Software project ideas for upcoming 2018 Summer of Code fellowships?

by warren about 1 month ago | 0 | 280 | 6

We're applying to the 2018 Google Summer of Code program a...

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How good is the PurpleAir sensor and what does it detect?

by warren about 1 month ago | 0 | 240 | 1

The website for PurpleAir (and the [Wunderground page](https://www....

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Open Institute presentation on facilitating community science

by warren about 2 months ago | 0 | 111 | 2

I gave a talk on Saturday at Open Institute V2 in Madeira, which had the theme of "Open in a Time...

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How can we detect contaminants in water samples with a DIY spectrometer using reagents?

by warren 2 months ago | 0 | 270 | 0

I've seen some good work on the site with #reagents, which change color or opacity of a liquid sa...

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