warren 783 research notes and 10155 wiki edits | Joined over 6 years ago | Admin

The creator of GrassrootsMapping.org and co-founder and Research Director for Public Lab, Jeffrey Warren designs mapping and community science tools and professionally flies balloons and kites. He leads the coding community at Public Lab, and has developed the vector-mapping framework Cartagen and grassroots mapping tool MapKnitter, as well as open spectral database and toolkit Spectral Workbench.

He is on the board of of the Open Source Hardware Association and served from 2015-17 as Vice President, is on the board (since 2014) of alternative education program Parts and Crafts in Somerville MA, and an advocate of open source software, hardware, and data. He co-founded Vestal Design, a graphic/interaction design firm in 2004, and directed the Cut&Paste Labs project, a year-long series of workshops on open source tools and web design in 2006-7 with Lima designer Diego Rotalde.

Jeff holds an MS from MIT and a BA in Architecture from Yale University, and spent much of that time working with artist/technologist Natalie Jeremijenko, building robotic dogs and stuff. To find out more, visit Unterbahn.com.

Photo by ChristopherVillafuerte.com CC BY-NC-SA 4.0

134 questions asked

4158 comments posted

74 activities posted

13 activities attempted

View these maps at MapKnitter.org »

Title Creation date Image


Comment Last activity Moderation
"I'd love to brainstorm and offer suggestions -- but I am much more likely to do so if it's on this website, since then it's all open source. In gen..." | Read more » about 7 years ago
"Actually i did make a short list here of spectral databases we could probably import if we got them to open source their data: https://github.com/..." | Read more » about 7 years ago
"We really need to find good numerical data for those spectra -- i only found graphs and don't really want to extract data manually from them. I'd l..." | Read more » about 7 years ago
"Starting to organize the datasets here: http://archive.publiclaboratory.org/maryland/2012-06-13-maryland-baltimore-umbc-kite/ " | Read more » about 7 years ago
"So I'd like to try this technique to select a subset of images to make a hypr3d model with -- since it only allows a few hundred images to be uploa..." | Read more » about 7 years ago
"Here's a much much nicer spectrum in "a little rectangular glass container" just as Chris suggested. I still can't get a strong enough light that t..." | Read more » about 7 years ago
"I bet he is just busy. Anyhow, do you anticipate that your ras pi will be online? or just recording to an SD card? The raspberry pi should be able ..." | Read more » about 7 years ago
"Did you see this post from last week? Very exciting: http://publiclaboratory.org/notes/warren/6-12-2012/mobile-android-version-spectral-workbench ..." | Read more » about 7 years ago
"Thanks, matthew - it does seem like Rhus could be adapted. The main features I've heard need for are: ability to click on a map and leave a text ..." | Read more » about 7 years ago
"We have an outline coming together -- 6 small text sections (with some small illustrations) around a central large graphic. I'll post some starting..." | Read more » about 7 years ago
" I ordered a 3d-printed spectrometer attachment on Shapeways.com (it'll be about $14 or so when done) and will report back in a week or two when i..." | Read more » about 7 years ago
"If its related to or descended from the air quality egg there's this diagram and bill of materials on upverter: http://upverter.com/jmsaavedra/79..." | Read more » about 7 years ago
"Partial hypr3d model from this dataset: http://www.hypr3d.com/models/4fd64bb8b6d8810001000033 " | Read more » about 7 years ago
"Not true! getting negatives of a $3 roll was $3.50... " | Read more » about 7 years ago
"($20 each) http://www.opticsplanet.net/unico-glass-square-spectrophotometer-cuvette-10mm-pathlength-3-5ml-capacity-vis-only.html or for fancy peop..." | Read more » about 7 years ago
"We'll be getting a new batch of spectrometer parts in this week. I'd love to try taking some atmospheric tests with them. " | Read more » about 7 years ago
"cool - well we're using webcams in our spectrometers, but the spectroscope you mention is paired with a camera that's taking a long exposure, right..." | Read more » about 7 years ago
"Thank you Juan! I only asked because of the (c) symbol on the images. Great. " | Read more » about 7 years ago
"Hey Juan - are you unwilling to release your work under an open license? Would you consider dropping the (c) symbol and going with the default Crea..." | Read more » about 7 years ago
"Hey, i'd look great wearing those around! ooh, i love the slide film idea. Let's try that and use it as a camera filter... although $14 is hard to..." | Read more » about 7 years ago
"I think the broader case of a generalized image/map annotation system is good, but there's a lot to be gained from first attempting a narrower goal..." | Read more » about 7 years ago
"Wow, Juan - those glasses are amazing! I just ordered a pair. I bet FarmHack people would be interested. It's worth it to embed some images from t..." | Read more » about 7 years ago
"OK, this guy is doing it with a $7,000 Ocean Optics Jaz spectrometer and several lasers: https://www.flickr.com/photos/bob_81667/6811951183/in/set-..." | Read more » about 7 years ago
"Hooray! I opened the files in Eagle and exported a few things which may be useful: Partlist Exported from thermal.sch at 6/4/12 8:18 PM EAGLE V..." | Read more » about 7 years ago


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