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Co-founder of public lab, balloon and kite nut. mdml.co/ @headfullofair


A Retrospective of Spectrometer Design Ideas 2011-2014

by mathew | 17 days ago | 0 | 430 views | 0

Here is a history of public lab spectrometer research ideas up to the present. There is really n...

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spectrometer overview retrospective


Off-wind kite flying & Redstone Rigging in Augusta, WI

by mathew | about 1 month ago | 5 | 525 views | 2

Dogs are totally pro-kite. Stephanie, Tom, myself, and our entranced canine audience. All groun...

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kite-mapping mapping wisconsin silica


DIY dust monitoring: Dylos in Wisconsin

by mathew | about 1 month ago | 7 | 320 views | 0

Hank Boschen and Concerned Chippewa Citizen have been deploying ~$200 Dylos 1100 laser particula...

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wisconsin dust silica midwest


a first look at dust with consumer scanners

by mathew | about 1 month ago | 6 | 396 views | 1

What I want to do See if I can't see PM10 or even PM2.5 particles on a consumer scanner. I purc...

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silica pm midwest particle-sensing



Using Fluxtream to look at Speck Data

by mathew | about 1 month ago | 0 | 327 views | 1

What I want to do Document how to upload data from a Speck to CMU's analysis program Fluxtream.o...

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visualization data dust silica


The development of stickypad monitoring

by mathew | about 1 month ago | 2 | 314 views | 2

What I want to do Summarize the development of sticky pads for dust monitoring and collect the p...

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air dust silica midwest


Two weeks with a Speck

by mathew | about 1 month ago | 6 | 371 views | 1

Carpentry. 80 times worse than rush hour. What I want to do Illah Nourbakhsh and Beatrice Dias ...

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air dust open-air particle-sensing


Midwestern Frac Sand Deposits, Aquifers, & Rivers

by mathew | 2 months ago | 1 | 468 views | 2

Image Credit: USGS What I want to do I want to understand where frac sand is being mined and wh...

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sand wisconsin water-quality water



Imagining & testing Polarized Light Microscopy for Silica dust speciation

by mathew | 2 months ago | 11 | 667 views | 4

What I want to do Sample and identify silica dust particles preferably at PM2.5 (2.5 μM, roughly...

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particulate-sensing air-quality dust particulates


PLOS One: KAP for... Multi-Spectral Mapping of Intertidal Landscapes

by mathew | 2 months ago | 6 | 1,857 views | 0

An article on two-camera NDVI in intertidal mapping from PLOS One, using kites, via the KAP forum...

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balloon-mapping near-infrared-camera kite-mapping ndvi


Frac Sand Frisbee- Maps against Mines

by mathew | 2 months ago | 0 | 460 views | 2

Mikey O'Connor's blog, Frac Sand Frisbee does an excellent job of explaining the problems with fr...

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community-mapping mapping fracking silica


Illustrating Infragram Point & Shoot Instructions

by mathew | 3 months ago | 5 | 1,065 views | 0

What I want to do Use Sketchup models of the Mobius action cam to illustrate instructions on its...

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near-infrared-camera infragram instructions mobius



Infragrams from a Quadcopter

by mathew | 3 months ago | 0 | 1,061 views | 1

What I want to do go flying on a friday morning. Not enough wind for a kite today. We did try ...

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near-infrared-camera infrared infragram quadcopter


Announcing the Infragram Point & Shoot

by mathew | 3 months ago | 11 | 1,835 views | 3

The Infragram Point & Shoot is a modified Mobius Action Cam with a 133 degree wide-angle lens...

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near-infrared-camera infrared kickstarter infragram


Rosco replacements for Wratten 25A, pt 2

by mathew | 3 months ago | 9 | 561 views | 0

What I want to do test the three Rosco theatrical filters identified during a search for a repla...

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infrared infragram mobius


A Wratten 25A replacement from Rosco?

by mathew | 3 months ago | 1 | 606 views | 0

What I want to do Find a cheap polycarbonate or polyester film filter made by Rosco that can rep...

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ndvi infrared infragram rosco



Frac Sand mining- polar light microscopy?

by mathew | 3 months ago | 2 | 572 views | 1

This image is from Wisconsin Watch With the increase in fracking comes a demand for sand used to...

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particulate-sensing air-quality dust silica


Mapknitter Annotations (GSOC)

by mathew | 5 months ago | 5 | 1,106 views | 0

What I want to do There is no single page to find all the work we've done thinking about map ann...

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balloon-mapping mapknitter archive gsoc


Oil Fluorescence Testing station from a spectrometer box

by mathew | 5 months ago | 3 | 1,359 views | 2

Download the cut pattern as a pdf: cutpattern.pdf What I want to do modify the standard deskto...

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spectrometer oil-testing-kit


3D data from image sets & Autostitching

by mathew | 5 months ago | 4 | 974 views | 0

On our weekly organizers call, we discussed software for doing 3D reconstructions from photos. I...

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3d mapknitter sfm



20 Oil Testing kits (draft 1)

by mathew | 5 months ago | 0 | 926 views | 0

What I want to do Buy 20 testing kits to Jeff's design. The parts are as follows: 4 square glas...

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spectrometer oil-testing-kit


Eymund Diegel Finds the Fun in Super Fund (GMF #4)

by mathew | 5 months ago | 0 | 708 views | 1

This is an interview by Shannon Dosemagen of Eymund Diegel from Grassroots Mapping Issue #4. bu...

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Grassroots Mapping Forum #4 in print

by mathew | 5 months ago | 1 | 734 views | 1

GM_Forum_20140205_screen_small.pdf Issue 4 is focused on long-term research in the New York C...

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Great Infragram conversion video (Canon Elph 130IS)

by mathew | 6 months ago | 2 | 1,030 views | 1

Dennis Baldwin made this really great video disassembling and converting a Powershot camera

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near-infrared-camera video conversion infragram



SnapPiCam: a Raspberry Pi Point & Shoot

by mathew | 6 months ago | 2 | 967 views | 0

What I want to do I discovered the SnapPiCam, a project to make a point and shoot Raspberry Pi c...

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raspberry-pi infragram


3-class module at Trillium Charter School

by mathew | 9 months ago | 2 | 636 views | 0

What I want to do Teach three blocks of 50 minutes each on grassroots mapping to a collection of...

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Scripting Raspberry Pi to boot and shoot timelapse photos

by mathew | 9 months ago | 5 | 3,498 views | 2

What I want to do I wanted to setup my Raspberry Pi to automatically boot and start shooting pho...

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near-infrared-camera raspberry-pi infragram


telephone poles & streetlights at sunset

by mathew | 10 months ago | 0 | 1,072 views | 1

What I want to do resolve open questions from my last batch of slit tests. 1) figure out of the...

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Photo-printed collimation slit for the Backpack Spectrometer

by mathew | 10 months ago | 3 | 1,650 views | 1

What I want to do Photo emulsion print a more accurate collimation slit based on ideas from Jeff...

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spectrometer slit stepped-slit


Open Source Linear CMOS Spectrometer

by mathew | 11 months ago | 1 | 1,805 views | 1

The Tricorder Project has just released a linear CMOS sensor spectrometer design. with 3D printin...

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spectrometer spectrometry