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
"In the Lee, NH farm map, we have a need to put known GPS points on a MapKnitter map. This is a feature request I've heard from other prolific mappe..." | Read more » about 7 years ago
"Just starting to put a few images in MapKnitter: https://mapknitter.org/map/view/cropcover-lee But the lack of references makes this pretty tough..." | Read more » about 7 years ago
"This is so great. Mathew - how many flights is 1lb of pigment good for? I have the 1lb jar you gave me, will probably try it this summer, but am ha..." | Read more » about 7 years ago
"I was thinking that we could try to produce a false color image to show the topography (basically a DEM or digital elevation model) and then adjust..." | Read more » about 7 years ago
"Also, if you're interested, you might consider merging your work (when you feel ready) with the existing balloon telemetry kit tool page, which has..." | Read more » about 7 years ago
"Hi, Catherine - just so you don't get left out, some folks are continuing conversation over on the GitHub issue. I wasn't sure if you were subscrib..." | Read more » about 7 years ago
"Wow, Dorn also posted this image, which shows much higher resolution (also CC-BY-SA): He used Meshlab instead of the online viewer. This should ..." | Read more » about 7 years ago
"Oh, Fritzing link: http://fritzing.org " | Read more » about 7 years ago
"Great progress, very cool. One way to share circuit diagrams in a very legible way is to create them in Fritzing, a free, open source circuit desig..." | Read more » about 7 years ago
"To share, feel free to upload the .zip, but you're right, once that's done we could try to unpack it a bit and create some images and wiki pages fr..." | Read more » about 7 years ago
"Wow, very cool. It looks like there is low resolution but possibly still usable 3d data from the hypr3d model: " | Read more » about 7 years ago
"Hi, Mathew - did you place these strips yourself? Recently? Very cool. " | Read more » about 7 years ago
"also a great video showing aluminum/lye generation in a nice slow controlled manner: https://www.youtube.com/watch?v=Rl8Iby4AuWc There seem to be ..." | Read more » about 7 years ago
"Actually i think that dual-camera wiki section on shutter priority was Chris F's -- it's a good idea but personally I usually leave it on auto, and..." | Read more » about 7 years ago
"Wow!!! I don't know -- i see what you mean about the pinkness (what film/filter did you use?) but i think they look pretty good! Do you think there..." | Read more » about 7 years ago
"Just want to remember this idea: small good-sized first-surface mirrors can be found in scanners, and I'm planning to take one apart to get them ou..." | Read more » about 7 years ago
"I've been looking for public domain reference imagery, and wrote a while ago about this here: http://publiclaboratory.org/notes/warren/3-19-2012/ro..." | Read more » about 7 years ago
"Hi Joe - is the map you're working on in MapKnitter the vineyard map? How did that flight go? https://mapknitter.org/map/view/santa-margarita-ranc..." | Read more » about 7 years ago
"Packing tape is a good idea. I am interested in the laser technique because it would be realtime and wouldn't "run out" like when the packing tape ..." | Read more » about 7 years ago
"Tom from Thatchmore farm wrote back to me with some of the following details and a request: We are planning to install a hydraulic ram pump someti..." | Read more » about 7 years ago
"MapKnitter map (started with just one image, feel free to add): https://mapknitter.org/map/view/starvation-lake " | Read more » about 7 years ago
"Sweet. Amazing. I wonder if you could browse Google Maps and find a lat/lon for some of these... i'd love to help stitch them in MapKnitter. The b..." | Read more » about 7 years ago
"?? did it? what photo? " | Read more » about 7 years ago
"Very eager to see the relay-less design! I am endurance-testing two 9v batteries in series, which is ~18v. It did not immediately burn out the 555 ..." | Read more » about 7 years ago


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