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


Graded oils using UV fluorescence

by mathew | 9 days ago | 22 | 452 views | 1

What we want to do Me and @Warren are trying to replicate the heavy to light sorting of oils, a...

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spectrometer oil fluorescence spectral-workbench


Replicating the Grading of oils with UV Fluorescence on other cameras pt 1

by mathew | 10 days ago | 4 | 221 views | 0

What I want to do replicate the results of my previous note using different other cameras. I wa...

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spectrometer fluorescence oil-testing-kit 405nm


Grading oils with UV fluorescence

by mathew | 13 days ago | 5 | 225 views | 0

What I want to do I want to be able to grade oils from light to heavy. I'm going to use a means ...

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spectrometer laser fluorescence crude


Laser Pointers and the LIF Literature

by mathew | 14 days ago | 1 | 299 views | 1

*LIF stands for Laser Induced Fluorescence. What I want to do I want to answer three questions ...

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spectrometer uv laser fluorescence



Fluorescence spectroscopy with the foldup + gelcap

by mathew | 20 days ago | 4 | 265 views | 1

What I want to do See bright fluorescence spectra with a fold up. My attempt and results While...

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spectrometer uv fluorescence fold-up


Using Gelatin Caps for oil fluorescence

by mathew | 27 days ago | 19 | 394 views | 2

What I want to do see if we use gelatin caps as sample containers. They cost a few cents each, ...

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spectrometer oil fluorescence cuvette


Getting a high altitude balloon back

by mathew | 28 days ago | 3 | 321 views | 0

What I want to do fly a high altitude balloon and get it back. This means tracking where it goe...

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balloon-mapping solar-balloon mapping balloon


Clips for the next spectrometer, pt 2

by mathew | about 1 month ago | 3 | 448 views | 1

What I want to do try out some clips I bought and figure how they fit in a new spectrometer desi...

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spectrometer oil-testing-kit



Low-cost passive aerosol monitors

by mathew | about 1 month ago | 2 | 451 views | 1

What I want to do Summarize the literature on low-cost passive particle monitors tha can produce...

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air-quality dust particulates silica


Clips for the next spectrometer

by mathew | about 1 month ago | 4 | 407 views | 1

What I want to do find and test a clip that works with the bench design @warren and I brainstorm...

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spectrometer oil-testing-kit


State of the Science: The Oil Testing Kit

by mathew | about 1 month ago | 2 | 535 views | 3

What we want to do I sat down with @warren to record a video presentation on the state of the oi...

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spectrometer video oil-testing-kit with:warren


Karen's comments on the spectrometer instructions

by mathew | 2 months ago | 1 | 346 views | 0

Karen assembled a desktop spectrometer and commented the instructions during our 7/31 workshop.

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spectrometer assembly desktop-spectrometer desktop-spectrometer-assembly



Hardware design work for the Oil Testing Kit

by mathew | 2 months ago | 13 | 399 views | 2

A hardware sketch of our favorite configuration is above. _This is a jointly authored research no...

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spectrometer kits fluorescence desktop-spectrometer


A Retrospective of Spectrometer Design Ideas 2011-2014

by mathew | 3 months ago | 0 | 716 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 | 3 months ago | 5 | 730 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 | 4 months ago | 7 | 477 views | 1

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 | 4 months ago | 6 | 512 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 | 4 months ago | 1 | 432 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 | 4 months ago | 2 | 434 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 | 4 months ago | 6 | 534 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 | 4 months ago | 1 | 709 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 | 4 months ago | 11 | 890 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 | 4 months ago | 6 | 2,189 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 | 5 months ago | 0 | 572 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 | 5 months ago | 9 | 1,292 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 | 5 months ago | 0 | 1,261 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 | 5 months ago | 11 | 2,121 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 | 5 months ago | 9 | 764 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 | 5 months ago | 1 | 888 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 | 5 months ago | 2 | 738 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