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Microscopes

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Harvey Response

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DustDuino

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Irma

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Harvey Response

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Harvey Images

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Sandbox

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Events

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Harvey Images

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Harvey Images

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Irma

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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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Image Sorting

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Water Sampling

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Soil Sampling

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Sampling

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sonofaquark commented on Spectrometer calibration

Hi, When speaking of "calibrating wavelength", what Wiebew is referring to is the mapping of the...

2 comments » over 4 years ago

commented on intensity calibration

What about using broadband or narrowband LEDs at "useful" center wavelengths and known intensitie...

29 comments » over 4 years ago

sonofaquark commented on IR/Visible light camera dreams & parts

it had not occurred to me before that with the beam splitter, a mirror, and a pair of cheap elect...

10 comments » over 4 years ago

sonofaquark commented on IR/Visible light camera dreams & parts

$20 too much for the splitter? This actually looks like pretty good quality and they have quite a...

10 comments » over 4 years ago

commented on Update on the photo monitoring plugin for ImageJ/Fiji

Ned, I am looking at doing some NDVI images for a independent study project for under-graduate d...

3 comments » over 4 years ago

sonofaquark commented on Sanm camera board for spectrometer kit

figuring in the shipping time, i looked into ordering one but couldn't find the info. Did you get...

20 comments » over 4 years ago

mathew commented on Sanm camera board for spectrometer kit

Ok, this spectrum is completely messed up in its calibration and graph... spectral workbench at i...

20 comments » over 4 years ago

sonofaquark commented on IR/Visible light camera dreams & parts

a couple of ideas; you could use a beam splitter to combine two cameras. good ones are expensive ...

10 comments » over 4 years ago

sonofaquark commented on Spectrometry discussion across the web

Looking back through the history to catch up while anxiously waiting to get my kit I see you have...

11 comments » over 4 years ago

commented on IR filter switchers

Awesome! This is totally great Mathew! Nice one!

4 comments » over 4 years ago

sonofaquark commented on intensity calibration

there is a 14" hoffman integrating sphere and controller on ebay right now for 995 or best offer ...

29 comments » over 4 years ago

cfastie commented on PAR

Excel allows nesting if statements, so: if((if(red>green,red,green))>blue,(if(red>green,red,gree...

13 comments » over 4 years ago

sonofaquark commented on desperate newbie seeks info

I am interested in roughly the same end, but it is not simple to detect these chemicals optically...

7 comments » over 4 years ago

sonofaquark commented on First Measurement with Public Lab Desktop Spectrometry Kit

Awesome! I just ordered my kit and feel like a kid waiting for Santa. I was resigned to buying an...

8 comments » over 4 years ago

cversek commented on Late-night IRCAM hack

follow the technical Python code discussion here: https://github.com/ingenuitas/SimpleCV/issues/320

17 comments » over 4 years ago

eustatic commented on Testing oil fluorescence with a green laser

following

10 comments » over 4 years ago

cversek commented on Late-night IRCAM hack

Reposting a comment that somehow slipped through the cracks: Comment by kscottz: Hi Guys, I am o...

17 comments » over 4 years ago

cfastie commented on Late-night IRCAM hack

Don and Craig, This is incredible progress. It's really reassuring that Craig is already doing af...

17 comments » over 4 years ago

commented on Mobile Spectrometer Design Update

Hi Jeff, no link to post about 220V connectors, so posting here... an IEC panel-mounted plug is...

2 comments » over 4 years ago

pluharj commented on desperate newbie seeks info

It really depends what you wish to measure. For example some algae change color of water, so you ...

7 comments » over 4 years ago

cfastie commented on Noise

The corduroy appearance of the image is a mystery. The vertical lines are very regular in places,...

3 comments » over 4 years ago

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

Again, super write-up. Some thoughts that might be helpful: for cfl calibrations without moving...

5 comments » over 4 years ago

warren commented on Passenger Pigeon shots of MSY to PHX

I started a map here: https://mapknitter.org/map/view/sinkhole-passenger-pigeon ~5 meter resolut...

5 comments » over 4 years ago

Sara commented on Vermont Winter Festival, Viewed from a Kite String

Great to see grassroots mapping taking off with TAC in Vermont!

2 comments » over 4 years ago

commented on Air Quality Egg

Aside from air testers, we also need food and water testers in our homes that become as common as...

3 comments » over 4 years ago

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

Sorry, folks, some comments were caught in moderation. However, aside from doing that better next...

11 comments » over 4 years ago

Yuritza13 commented on THE LIVING ROOM

Stephanie would probably find dust.

3 comments » over 4 years ago

John_Wells commented on Infrared camera test - film types

Hi Could you send me a full image file of your picture at the top of the page please....It looks ...

9 comments » over 4 years ago

Emily13 commented on Air Quality Egg

Cool. I like how you said it changes to different colors. When you say it makes a a annoying nois...

1 comments » over 4 years ago

alton13 commented on THE LIVING ROOM

hope that your egg doesn't get messed up

3 comments » over 4 years ago

Occupy Oakland 11-2-11

by gonzoearth almost 6 years ago | 0 | 0

possible estrogen culture vessels...

by mara almost 6 years ago | 0 | 2

New Boston Map Library

by gonzoearth almost 6 years ago | 0 | 2

Video tutorial: Decisions With Distortions

by gonzoearth almost 6 years ago | 0 | 2

Goldsmiths University First Mapping session

by cesarharada almost 6 years ago | 1 | 0

The weTable and CHARM

by jacobsimonson almost 6 years ago | 1 | 2

Foothills Community Garden NRG Imagery

by gonzoearth almost 6 years ago | 1 | 0

Waterkeeper BP oil spill one year report

by Shannon almost 6 years ago | 0 | 2

Discovering hydrocarbon leaks with UV photography?

by warren almost 6 years ago | 0 | 0

Video tutorial: Intro to MapKnitter.org

by warren almost 6 years ago | 0 | 0

Trees, Chainsaws, Protest and Balloons

by warren almost 6 years ago | 0 | 2

Arsenic detection with UV-Vis spectrometry

by warren almost 6 years ago | 2 | 1

Wetlands erosion in Bayou St Denis, Louisiana

by warren almost 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



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A shared knowledge base for community science

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Microscopes

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Harvey Response

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DustDuino

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Irma

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Harvey Response

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Harvey Images

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Sandbox

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Events

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Harvey Images

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Harvey Images

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Irma

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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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Image Sorting

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Water Sampling

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Soil Sampling

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Sampling

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