Follow mathew

RSS feed for mathew


Wiki pages recently contributed to

mathew 616 research notes and wiki edits | Moderator

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


mathew was awarded the Watchdog Barnstar by amysoyka for their work published in Frac Sand in 10 minutes.


mathew was awarded the Photo Documentation Barnstar by amysoyka for their work published in a paper spectrometer design.


A DIY gas-finding camera?

by mathew | 2 days ago | 8 | 387 views | 1

What I want to do Explore whether its possible to make a camera that can see VOCs, like the very...

Read more »

infrared camera


a paper spectrometer design

by mathew | 16 days ago | 6 | 443 views | 2

What I want to do build a spectrometer that doesn't use a conduit box, out of mostly paper and c...

Read more »

spectrometer desktop-spectrometer fold-up dsk


notes on setting up a Dustduino

by mathew | 27 days ago | 0 | 315 views | 1

What I want to do setup a Dustduino per Matthew @Schoyer's instructions My attempt and results ...

Read more »

air-quality dustduino dust silica


Frac Sand in 10 minutes

by mathew | about 1 month ago | 7 | 627 views | 5

photo credit: Crispin Pierce PhD What I want to do I made a 10 minute video introducing what fr...

Read more »

air-quality air monitoring dust



shorter spectrometer geometry with two slits?

by mathew | about 1 month ago | 3 | 507 views | 2

What I want to do answer two questions: Can straylight be eliminated in a simple spectrometer se...

Read more »

spectrometer oil-testing-kit


Graded oils using UV fluorescence

by mathew | 2 months ago | 22 | 757 views | 1

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

Read more »

spectrometer oil fluorescence spectral-workbench


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

by mathew | 2 months ago | 4 | 375 views | 0

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

Read more »

spectrometer fluorescence oil-testing-kit 405nm


Grading oils with UV fluorescence

by mathew | 2 months ago | 5 | 385 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 ...

Read more »

spectrometer laser fluorescence crude



Laser Pointers and the LIF Literature

by mathew | 2 months ago | 1 | 526 views | 1

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

Read more »

spectrometer uv laser fluorescence


Fluorescence spectroscopy with the foldup + gelcap

by mathew | 2 months ago | 4 | 390 views | 1

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

Read more »

spectrometer uv fluorescence fold-up


Using Gelatin Caps for oil fluorescence

by mathew | 3 months ago | 19 | 667 views | 2

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

Read more »

spectrometer oil fluorescence cuvette


Getting a high altitude balloon back

by mathew | 3 months ago | 3 | 429 views | 0

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

Read more »

balloon-mapping solar-balloon mapping balloon



Clips for the next spectrometer, pt 2

by mathew | 3 months ago | 3 | 575 views | 1

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

Read more »

spectrometer oil-testing-kit


Low-cost passive aerosol monitors

by mathew | 3 months ago | 4 | 648 views | 1

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

Read more »

air-quality dust particulates silica


Clips for the next spectrometer

by mathew | 3 months ago | 4 | 526 views | 1

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

Read more »

spectrometer oil-testing-kit


State of the Science: The Oil Testing Kit

by mathew | 4 months ago | 2 | 665 views | 3

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

Read more »

spectrometer video oil-testing-kit with:warren



Karen's comments on the spectrometer instructions

by mathew | 4 months ago | 1 | 450 views | 0

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

Read more »

spectrometer assembly desktop-spectrometer desktop-spectrometer-assembly


Hardware design work for the Oil Testing Kit

by mathew | 4 months ago | 13 | 582 views | 2

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

Read more »

spectrometer kits fluorescence desktop-spectrometer


A Retrospective of Spectrometer Design Ideas 2011-2014

by mathew | 4 months ago | 0 | 894 views | 0

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

Read more »

spectrometer overview retrospective


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

by mathew | 5 months ago | 5 | 886 views | 2

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

Read more »

kite-mapping mapping wisconsin silica



DIY dust monitoring: Dylos in Wisconsin

by mathew | 5 months ago | 7 | 642 views | 1

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

Read more »

wisconsin dust silica midwest


a first look at dust with consumer scanners

by mathew | 6 months ago | 7 | 593 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...

Read more »

silica pm midwest particle-sensing


Using Fluxtream to look at Speck Data

by mathew | 6 months ago | 1 | 539 views | 1

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

Read more »

visualization data dust silica


The development of stickypad monitoring

by mathew | 6 months ago | 3 | 551 views | 2

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

Read more »

air dust silica midwest



Two weeks with a Speck

by mathew | 6 months ago | 6 | 687 views | 1

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

Read more »

air dust open-air particle-sensing


Midwestern Frac Sand Deposits, Aquifers, & Rivers

by mathew | 6 months ago | 1 | 925 views | 2

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

Read more »

sand wisconsin water-quality water


Imagining & testing Polarized Light Microscopy for Silica dust speciation

by mathew | 6 months ago | 11 | 1,083 views | 4

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

Read more »

particulate-sensing air-quality dust particulates


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

by mathew | 6 months ago | 6 | 2,440 views | 0

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

Read more »

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



Frac Sand Frisbee- Maps against Mines

by mathew | 6 months ago | 0 | 671 views | 2

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

Read more »

community-mapping mapping fracking silica


Illustrating Infragram Point & Shoot Instructions

by mathew | 7 months ago | 9 | 1,453 views | 0

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

Read more »

near-infrared-camera infragram instructions mobius