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gretchengehrke commented on What are ways to record ambient temperature every 5 sec and export easily? about 2 years ago

@carohowe, Agreed! I read a paper a while ago (which I can't seem to find now) that demonstrated ...

eustatic commented on What do you do if your environmental concern is linked to your neighbor's paycheck? about 2 years ago

it depends on the degree of retaliation a company is willing to pursue. it's easiest to fire the...

suman commented on Introducing the calibration plugin for ImageJ/Fiji about 2 years ago

Hello Ned, I tried using different exposure settings now, and its working, the pixels aren't satu...

shanlter commented on Monitor transparency, dissolved oxygen, ORP, and ammonia from a river over 2 years ago

"Did the Chinese government state the methods they would use to evaluate each of these parameters...

shanlter commented on Monitor transparency, dissolved oxygen, ORP, and ammonia from a river over 2 years ago

Hi @gretchengehrke, sorry for responding late, I was in a temple with no internet access in the p...

nedhorning commented on Seeking DC-area folks interested in building temperature sensors for urban heat island measurement over 2 years ago

Hi - This recent paper might be helpful: www.mdpi.com/2073-445X/6/2/38/pdf From my experience sat...

carohowe commented on an answer about What are ways to record ambient temperature every 5 sec and export easily? over 2 years ago

@pera THANK YOU! That would be ideal! (Also, I'd LOVE to join the DC Women and Bicycles forum any...

carohowe commented on What are ways to record ambient temperature every 5 sec and export easily? over 2 years ago

Thanks @gretchengehrke -- that's definitely what we're looking into! So many of DC's food deserts...

carohowe commented on Seeking DC-area folks interested in building temperature sensors for urban heat island measurement over 2 years ago

Thanks so much @liz @stevie and @bronwen for your input. Liz, I think it's a fantastic idea to us...

MadTinker commented on Build KnowFlow: automatic water moniter over 2 years ago

@shantler @rockets FWIW- came home today with a mailbox literally full of 'stuff'. Also, many tha...

gretchengehrke commented on What are some options for low cost methane monitoring? over 2 years ago

Hi @stevie, I'm not sure if this is on the market yet, but it looks like IBM is developing a chip...

Bronwen commented on What are some options for low cost methane monitoring? over 2 years ago

This article is behind a paywall, but some of the tools/methods listed might be worth doing some ...

Bronwen commented on Seeking DC-area folks interested in building temperature sensors for urban heat island measurement over 2 years ago

I haven't used this tool myself, but you might find this project about another open source temper...

gretchengehrke commented on What are ways to record ambient temperature every 5 sec and export easily? over 2 years ago

Hi @carohowe, this sounds like an interesting project! In addition to broadly looking at the impa...

liz commented on Software for mapping trees? over 2 years ago

Hi Sebastian, i know OpenTreeMap is quite a big platform at this point, but considering how many ...

liz commented on Seeking DC-area folks interested in building temperature sensors for urban heat island measurement over 2 years ago

LB: Hi @carohowe i am wondering if there might be any use to starting with publicly available dat...

stevie commented on Seeking DC-area folks interested in building temperature sensors for urban heat island measurement over 2 years ago

Hi! The I See Change project was in Harlem not DC, but it might be a good example to check out.

nedhorning commented on Introducing the calibration plugin for ImageJ/Fiji over 2 years ago

Hi Suman - Using Analyze => Measure should work. It's not uncommon to have high pixel values f...

warren commented on Web-based fisheye-removal prototype for correcting lens distortion over 2 years ago

Actually i'm pretty jazzed for the possibility of some of actually doing the lens correction for ...

warren commented on Seeking DC-area folks interested in building temperature sensors for urban heat island measurement over 2 years ago

@stevie was talking about a project with ISeeChange.org in DC -- Stevie, did you have a link, or ...

warren commented on "Use or calibrate calibration" dont show my reference CFL already calibrated over 2 years ago

Hi, can you link to the spectra you're talking about so we can see? Thanks!

cfastie commented on Web-based fisheye-removal prototype for correcting lens distortion over 2 years ago

Right click -- got it! I added the corrected version above. Yes, I think most point and shoot c...

suman commented on Introducing the calibration plugin for ImageJ/Fiji over 2 years ago

Thank you so much for your prompt response Ned...

suman commented on Introducing the calibration plugin for ImageJ/Fiji over 2 years ago

Ohh I get it now. Actually the data has 3 calibration target, but i plan to increase it to 5 tar...

warren commented on Web-based fisheye-removal prototype for correcting lens distortion over 2 years ago

OK, I've just updated with a change that stores the settings in the URL, so you can pass a URL to...

warren commented on Web-based fisheye-removal prototype for correcting lens distortion over 2 years ago

Hm, so the PowerShot S100 actually fudges pixels to correct lens distortion? But you turned that ...

nedhorning commented on Introducing the calibration plugin for ImageJ/Fiji over 2 years ago

Hi Suman - The values from 0 - 1 have been scaled from the original image. The reason I do this i...

BaptisteLeSergent commented on ramanPi - The 3D Printable Raspberry Pi Raman Spectrometer over 2 years ago

Hello, Like Garret said a few days ago, we can't access the hackaday website anymore. Does anyon...

suman commented on Introducing the calibration plugin for ImageJ/Fiji over 2 years ago

Dear Ned Horning, I calculated image calibration coefficients, using the reflectance data from d...

How do I...

Question by Mekis over 2 years ago | 1 | | 153 | 0

Testing Water For Specific Polluting Compounds

Question by rajanzaveri over 2 years ago | 2 | | 213 | 1

Mapknitter file download

Question by Zajtam over 2 years ago | 0 | | 121 | 0

Mapknitter export

Question by Zajtam over 2 years ago | 1 | | 109 | 0

Data Collection and Curation Questions

Question by gkb over 2 years ago | 0 | | 141 | 1

Hi, about fido alarm output's

Question by Roey over 2 years ago | 1 | | 120 | 0

MapKnitter map of Vrt

by Zajtam over 2 years ago | 0 | | 111 | 0

DIY NIR Test with Filter Kit #1

by belkinsa over 2 years ago | 1 | | 319 | 0

Kite based airflow monitoring

by ecta64 over 2 years ago | 0 | | 165 | 1

Web Working Group Update 16: March

by warren over 2 years ago | 0 | | 186 | 1

MiniVol pre-deployment preparation, Updated

by mathew with stevie over 2 years ago | 0 | | 187 | 1

Host a collaborative map drawing workshop

by liz over 2 years ago | 0 | | 143 | 2

Site Survey for a Minivol

by mathew with gretchengehrke , stevie over 2 years ago | 0 | | 386 | 1

Email Notification Overhaul

by stella over 2 years ago | 0 | | 191 | 3

Email notification overhaul

by bash over 2 years ago | 2 | | 108 | 0

Image-sequencer - Graph Editor

by calvrix over 2 years ago | 0 | | 132 | 0

Graph Editor for the Image-sequencer

by calvrix over 2 years ago | 0 | | 66 | 0

Graph Editor for Image-sequencer

by calvrix over 2 years ago | 2 | | 154 | 1

OmniAuth and Wiki Discussion

by vaibhavgeek over 2 years ago | 3 | | 1,150 | 0

U-blox GPS board

by cfastie over 2 years ago | 3 | | 254 | 2

Public Lab Featured on PBS Documentary

by klie over 2 years ago | 3 | | 216 | 11

Public Lab Community Newsletter: March 2017

by klie over 2 years ago | 0 | | 96 | 0

Infragrammer WebGL HSV vs Standard equations

Question by plam over 2 years ago | 2 | | 169 | 0







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Community Microscope Kit

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Community Microscope Kit

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Community Microscope Kit

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Community Microscope Kit

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community-toolbox

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Test Page

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test2

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soc

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Hurricanes

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Storm response

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Method

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Methods

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