RSS feed for warren Preview profile tag system


warren 6808 research notes and wiki edits | Admin

The creator of GrassrootsMapping.org and co-founder and Research Director for Public Lab, Jeffrey Warren designs mapping and civic science tools and professionally flies balloons and kites. Notable software he has created include the vector-mapping framework Cartagen and orthorectification tool MapKnitter, as well as open spectral database and toolkit Spectral Workbench.

He is Vice President of the board of the Open Source Hardware Association, on the board of alternative education program Parts and Crafts in Somerville MA, on the advisory board of Personal Democracy Media's WeGov 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.


Barnstars



Sample container search

by warren over 2 years ago | 12 | 3,272 | 3

The square glass bottles we've used for fluorescence spectroscopy are sold out, and the nail p...

Read more


Increasing brightness of fluorescence spectra

by warren over 2 years ago | 7 | 2,498 | 0

We had some trouble at [the recent oil testing kit meetup in New Orleans](/notes/stevie/08-01-...

Read more


Survey of different kinds of fluorescence spectrometry, optimizing intensity

by warren over 2 years ago | 13 | 4,087 | 1

Learning more about different types of fluorescence spectroscopy -- a common type for oil anal...

Read more


Visible-range fluorescence fingerprinting of heating and motor oil

by warren over 2 years ago | 1 | 2,520 | 1

I forwarded this 1992 article, "Fingerprinting petroleum contamination using synchronous scanning...

Read more



Canon SD4000IS as Infragram

by warren over 2 years ago | 9 | 1,915 | 1

We'd [struggled a year ago](/notes/warren/08-26-2013/results-from-aug-25-2013-tidmarsh-farms-m...

Read more


Equalizing area of spectral graphs for comparison

by warren over 2 years ago | 0 | 1,653 | 2

During the development of testing techniques with spectrometers in the Public Lab community, w...

Read more


Recent improvements to PublicLab.org

by warren over 2 years ago | 0 | 1,380 | 4

The past few months have been focused on intense coding, optimization, and feature refinement ...

Read more


Infragram kite mapping at Fab10 Barcelona

by warren over 2 years ago | 12 | 2,284 | 0

I held two workshops at Fab 10 (http://fab10.org) where we launched an [Infragram](/wiki/infragra...

Read more



Spectrometer slit width thoughts

by warren over 2 years ago | 5 | 3,629 | 0

I'd like to propose a couple changes to the optical slit based on observations. The slit is fa...

Read more


Oil testing spectrometry workshop at Fab 10

by warren over 2 years ago | 5 | 3,402 | 1

I ran a small session on developing the oil test kit spectrometer yesterday in Barcelona (http://...

Read more


Presentation at FAB10 in Barcelona

by warren over 2 years ago | 1 | 1,269 | 0

I'm presenting today at FAB10 (http://fab10.org) and wanted to share my presentation! https://...

Read more


Reimagining the data lifecycle

by warren over 2 years ago | 0 | 1,440 | 0

This article, by Jeffrey Warren and /pr...

Read more



Idea for<$5 analog thermal fishing bob

by warren almost 3 years ago | 1 | 1,579 | 5

Using 555 timers and no Arduino... Only red/blue LEDs!

Read more


Public Lab community newsletter 5.23.14

by warren almost 3 years ago | 0 | 1,270 | 0

Hello folks - the Northeast Barnraising is quickly approaching, and research discussions on our m...

Read more


Viewing mica through a polarizer

by warren almost 3 years ago | 1 | 1,271 | 0

Mathew Lippincott has been [collecting and posting research on low-cost approa...

Read more


Public Lab Community Newsletter 5.4.14

by warren almost 3 years ago | 1 | 1,092 | 0

_Featured image: an Infragram-converted [Mobius Action Cam](/notes/mathew/05-02-2014/announcing-t...

Read more



Public Lab trading cards

by warren almost 3 years ago | 1 | 1,613 | 5

For highlighting awesome enviro monitoring and other stories. Collect them all! [![tmp_IMG_2...

Read more


$0.75 lead testing color strips

by warren almost 3 years ago | 5 | 1,748 | 2

Ok -- how does this work and can we DIY this? [![2014-04-18_17.19.22.jpg](https://i.publiclab...

Read more


Infragram featured in April's issue of Wired

by warren almost 3 years ago | 1 | 2,363 | 4

Just got this at the newsstand -- pretty neat, if brief! Woohoo! [![publiclab.png](https://i.p...

Read more


Mobius Action Cam Infragram tests

by warren almost 3 years ago | 5 | 6,283 | 0

Based on an ongoing discussion about whethe...

Read more



Selenium detection methods & ideas on e-cigarette atomizers for DIY analysis

by warren almost 3 years ago | 3 | 3,670 | 2

This PDF has some great notes on all different approaches for measuring selenium in soil, water, ...

Read more


Yellow smoke plume at Lawrence Point, Queens

by warren about 3 years ago | 7 | 4,095 | 0

Yesterday, I was riding the Amtrak train past Lawrence Point in Queens, NY, and saw twin smokesta...

Read more


Sampling extension for smartphone specs

by warren about 3 years ago | 8 | 2,167 | 2

Mathew Lippincott and I have been talking about the [Oil Sampling Kit](/notes/...

Read more


Public Lab Community Newsletter February 7, 2014

by warren about 3 years ago | 0 | 1,164 | 0

Hello everyone -- your weekly dose of Public Labbery is here, with a full agenda for the next few...

Read more



Oil Testing Kit: draft materials list

by warren about 3 years ago | 33 | 3,964 | 3

Update: Alpha kits are now available: http://store.publiclab.org/products/spectrometry-sampli...

Read more


Public Lab community newsletter 2.01.14

by warren about 3 years ago | 0 | 1,302 | 0

Hello everyone! There are lots of upcoming events, including one tomorrow in Somerville, MA -...

Read more


Thermal flashlight Visualight shield

by warren about 3 years ago | 25 | 3,916 | 0

In the comments of this post, we've been exploring how to make an expansion to the open source...

Read more


Reagent-based PAH, VOH, PCB testing kits for soil and water, with pricing

by warren about 3 years ago | 0 | 4,222 | 0

We need established tests to compare our own tests to, even if the established tests are expensiv...

Read more



Announcing an ioby + Public Lab partnership

by warren about 3 years ago | 0 | 1,858 | 0

Hello all -- we wanted to briefly announce a new initiative in partnership with ioby, a locally-f...

Read more


Infragram Live & Infragram webcams en route from factory

by warren about 3 years ago | 0 | 3,565 | 2

Following up on [my post from a couple weeks ago](/notes/warren/12-28-2013/live-webcam-infragr...

Read more


Is this government security warning on NOAA new?

marlokeno asked about 13 days ago

Answers by warren

Good guides on doing a photo survey of a site?

Accepted

warren asked about 15 days ago

Answers by warren

answered on Mar 14, 2017 0

answered on Mar 14, 2017 0

Show all 3 answers »

JDEPC-OV05 camera intelligent exposure

tim_spec asked about about 1 month ago

Answers by warren

what causes spectral colors to be reversed?

vgoebel asked about about 1 month ago

Answers by warren

Fraunhofer Lines at higher resolutions?

stef asked about 2 months ago

Answers by warren

How to get spectral data in excel or other formats

Accepted

suha asked about 2 months ago

Answers by warren

Can you process multiple images at the same time?

JonathanM32 asked about 3 months ago

Answers by warren

orientation of slit vs that of diffraction grating

wlkwong asked about 3 months ago

Answers by warren

Video Infragram

Accepted

jfd asked about 4 months ago

Answers by warren

Ambient/Light Bulb Testing

idev247 asked about 4 months ago

Answers by warren

How do I make a video from a series of photos?

Accepted

warren asked about 4 months ago

Answers by warren

answered on Dec 05, 2016 0

answered on Dec 05, 2016 0

Show all 4 answers »

Spectral Workbench recording time?

Accepted

dhale2 asked about 4 months ago

Answers by warren

Calibration of spectra fails

Paul_P asked about 4 months ago

Answers by warren

Why copy calibration does not apply?

aelobo asked about 4 months ago

Answers by warren

Intensity for spectra too low?

chuynh451 asked about 5 months ago

Answers by warren

Is there an iPhone app for foldable spectrometer?

CanfieldC asked about 5 months ago

Answers by warren

Can you share a link to project documentation?

vwls asked about 5 months ago

Answers by warren

Error on calibrating uploaded spectrum

sarahcm asked about 5 months ago

Answers by warren

Can anyone help me troubleshoot my NDVI imagery?

abdul asked about 5 months ago

Answers by warren

lightweight air quality sensors for a weather balloon

glenc asked about 6 months ago

Answers by warren

how to delete my spectra on Spectral Workbench

redleon asked about 6 months ago

Answers by warren


How can I reduce ambient light inside the Desktop Spectrometry Starter Kit?

Accepted

warren asked about 6 months ago

Answers by warren

answered on Sep 20, 2016 0

answered on Sep 20, 2016 0

Show all 5 answers »

What's the best way to archive/store a timelapse video?

warren asked about 6 months ago

Answers by warren

answered on Sep 16, 2016 0

answered on Dec 08, 2016 0

Show all 2 answers »



Does the new Question feature work?

Accepted

warren asked about 7 months ago

Answers by warren

Question: How to rename a set?

AndrewJamesLaplante asked about 10 months ago

Answers by warren

Question: How do I get the calibration user interface?

PeterDH asked about 11 months ago

Answers by warren

View these maps <a href='//mapknitter.org/profile/warren'>at MapKnitter.org &raquo;</a>

Title Creation date Image