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Contributing to Public Lab Software

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OpenHour

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Kits Artwork

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Giving Tuesday

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Membership

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Spectrometry Sampling

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Oil Testing Kit

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Barnraising 2017

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Use a DIY spectrometer from Public Lab

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commented on Feb 20th Public Lab meetup in Somerville MA

See you tomorrow!

11 comments » almost 5 years ago

warren commented on Bayou Bienvenue Main Outfall Canal. New Orleans, Louisiana.

Were there no images of the northeastern infill area? I thought that was part of what Scott was l...

1 comments » almost 5 years ago

warren commented on Bayou Bienvenue Kite Mappers

That was a rough day! Lots of treetrunks underwater hitting you in the butt unexpectedly. No wond...

1 comments » almost 5 years ago

cfastie commented on Grating angle: DVD+R

Stu, Thanks for the lesson! It’s really good to get a feeling for these concepts. I wish you ha...

21 comments » almost 5 years ago

mathew commented on Kite Flying Tree

glad it came back! those trees...

2 comments » almost 5 years ago

commented on Feb 20th Public Lab meetup in Somerville MA

Sound great. Is it possible to share online ? Google hangout would be an opportunity. Best regar...

11 comments » almost 5 years ago

warren commented on Going with the Flow – Grassroots mapping historic streams along a Brooklyn Superfund site.

This is a really remarkable project. I love the aerial views -- especially the one showing the sk...

1 comments » almost 5 years ago

straylight commented on Grating angle: DVD+R

well done cfastie, thanks for taking the time to conduct some measurements. I've been pondering o...

21 comments » almost 5 years ago

Jayesh commented on Using a home-made Spectrometer to test kombucha readiness

Hi Martin, Thanks for the description and tips. I will try to implement it and will tell you res...

5 comments » almost 5 years ago

BradDudenhoffer commented on The Evolution of the PLOTS Smartphone Spectrometer

I just finished posting the previous (somewhat boxy) version to Thingiverse: http://www.thingiver...

10 comments » almost 5 years ago

danbeavers commented on Spectronic 20 spectrometer for comparison to our own

Post some pictures of the innards!!

3 comments » almost 5 years ago

Tom_H commented on Grating angle

The basic grating equation works for transmission as well as reflection. The sign conventions ca...

14 comments » almost 5 years ago

caroline commented on Feb 20th Public Lab meetup in Somerville MA

I'm excited! See you all soon!

11 comments » almost 5 years ago

cbreuer commented on Feb 20th Public Lab meetup in Somerville MA

I'll be there.

11 comments » almost 5 years ago

Hudonnoodles commented on Feb 20th Public Lab meetup in Somerville MA

Me too! :)

11 comments » almost 5 years ago

cfastie commented on Spectronic 20 spectrometer for comparison to our own

Required viewing for Spectronic 20 owners: Thanks to Nadya for discovering this one.

3 comments » almost 5 years ago

cfastie commented on Grating angle

Yes, now I have it. When the entrance slit is rotated the rectangular spectral image turns into ...

14 comments » almost 5 years ago

danbeavers commented on Grating angle

Chris, I am referring to the rotational alignment between the slit axis and the grating's ruling....

14 comments » almost 5 years ago

ernestbolds commented on where can I get Qualitative spectrometer reading.

At this time I will just say that it is an material that is reoccurring in my immediate environme...

3 comments » almost 5 years ago

warren commented on Fake alcoholic drinks

Very cool. Have you tried making a "set" of your spectra to display them together? So your test ...

2 comments » almost 5 years ago

jetson commented on distance spectrometry of refineries: questions

I captured a street lamp about 150 yards away using a webcam with a DVD-R+ taped over the lens wi...

2 comments » almost 5 years ago

jetson commented on Attempt at Distance Spectrometery

I replaced my spectrometer with a Logitec C310 (5MP) webcam with a DVD-R+ section taped over the ...

11 comments » almost 5 years ago

warren commented on Prototype CounterTop Spectrometer Built(Works)

Did you attend the BOSSLAB thing and show it? Sorry I didn't make it.

2 comments » almost 5 years ago

danbeavers commented on Attempt at Distance Spectrometery

I conjecture that you just have an alignment problem. My suggestion would be to fix the laser an...

11 comments » almost 5 years ago

warren commented on where can I get Qualitative spectrometer reading.

Hi, Ernest - what kind of sample is it? A water sample? Where did it come from? What do you susp...

3 comments » almost 5 years ago

Tom_H commented on Attempt at Distance Spectrometery

You can simplify this by using a single lens instead of the scope. Attach something white to eit...

11 comments » almost 5 years ago

Tom_H commented on Desktop Spectrometer assembly

I have seen large differences in webcam sensitivities in this application using two different one...

4 comments » almost 5 years ago

commented on Point Platte marsh restoration over time; air vs ground

I love this. I want to try to get a refuge in the northeast to participate in mapping. What was...

2 comments » almost 5 years ago

pluharj commented on Public Lab Desktop Spectrometry Kit arrived

This is the IR filter, it is just slightly broken. I would remove the rest of the filter with ca...

6 comments » almost 5 years ago

warren commented on Attempt at Distance Spectrometery

I think you're right -- and for many applications, we're going to need to do long-exposure imagin...

11 comments » almost 5 years ago

New Boston Map Library

by gonzoearth about 6 years ago | 0 | 2

Video tutorial: Decisions With Distortions

by gonzoearth about 6 years ago | 0 | 2

Goldsmiths University First Mapping session

by cesarharada about 6 years ago | 1 | 0

The weTable and CHARM

by jacobsimonson about 6 years ago | 1 | 2

Foothills Community Garden NRG Imagery

by gonzoearth about 6 years ago | 1 | 0

Waterkeeper BP oil spill one year report

by Shannon about 6 years ago | 0 | 2

Video tutorial: Intro to MapKnitter.org

by warren about 6 years ago | 0 | 0

Trees, Chainsaws, Protest and Balloons

by warren about 6 years ago | 0 | 2

Arsenic detection with UV-Vis spectrometry

by warren about 6 years ago | 2 | 1

Wetlands erosion in Bayou St Denis, Louisiana

by warren about 6 years ago | 0 | 2

Plume spectrometry test in Garfield County

by warren about 6 years ago | 0 | 2

Battlement Mesa Concerned Citizens Bucket Brigade

by warren about 6 years ago | 0 | 2

Prototype H2S sensor

by warren about 6 years ago | 0 | 0

EPA hazard review of toxic chemicals stalled

by Shannon about 6 years ago | 0 | 2

Hydrogen sulfide sensing brainstorm

by warren about 6 years ago | 0 | 0

The arduino patch for detecting Hydrogen Sulfide

by bha about 6 years ago | 0 | 0

The gas leak from an old apartment.

by bha about 6 years ago | 8 | 0

Hydrogen Sulfide Dosimeter

by Sara about 6 years ago | 1 | 1

Hydrogen Sulfide tarnishing Silver

by Sara about 6 years ago | 1 | 0

Conversion from µg/m3 to ppm hydrogen sulfide

by Sara about 6 years ago | 2 | 1

Hydrogen Sulfide Information on the Gas

by Sara about 6 years ago | 0 | 0




A shared knowledge base for community science

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Data Logging

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OpenHour

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Kits Artwork

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Giving Tuesday

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Membership

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Spectrometry Sampling

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Reagents

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Oil Testing Kit

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dssk

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Blog

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Barnraising 2017

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Project page template

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Host an Issue Brief workshop

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Issue Brief Template

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