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jenjimah commented on Horticultural Spectrometer - Assembly 4 months ago

I just looked up the transmission spectrum of borosilicate glass and you're right I think it's f...

ashokpkumar commented on Data logger shield for Nano 4 months ago

Hi, need help in using this module. i tried using this code Deek2bme.txt but my SD card says card...

KristinaTamara commented on Can you help us with calibrating our spectrometer? 4 months ago

warren, I am sorry for bothering you again, but we really don't have much time because this is th...

stoft commented on Horticultural Spectrometer - Assembly 4 months ago

Right ... the optical distances are very small ;-) which is why mechanical rigidity is so import...

silentsairam commented on Build a Raspberry Pi Zero aerial photo rig 4 months ago

@warren Do I really need to use Cannon or Go Pro external camera along with Rpi Camera and Rpi? ...

jenjimah commented on Horticultural Spectrometer - Assembly 4 months ago

^^^ I just realized you were referring to line spacing in microns, not lines/cm! Now it makes se...

TruePointInsurance commented on Could local mining affect local radon levels? 4 months ago

One would think that the answer would be yes, mining can increase radiation levels. Research as ...

Ag8n commented on How do I identify the base polymers in an unknown plastic for recycling? 4 months ago

Density is difficult to use. Many manufacturers use fillers like titanium dioxide as a filler. ...

maxliboiron commented on Can the Community Microscope analyze ocean microplastics? 4 months ago

Yes!! This will work for plastic forensics! Especially as the light comes from above rather than ...

maxliboiron commented on How do I identify the base polymers in an unknown plastic for recycling? 4 months ago

@warren : The fluorescing plastics you mention are from specially designed lab plastics that flo...

jenjimah commented on Horticultural Spectrometer - Assembly 4 months ago

Also - I like the idea of microscope slides, except that glass strongly absorbs UV <400nm. I'm...

jenjimah commented on Horticultural Spectrometer - Assembly 4 months ago

Yes, so far I'm trying to accomplish all those 3 points. As for the slit, I made it from a razor ...

warren commented on Can the Community Microscope analyze ocean microplastics? 4 months ago

OK, i was able to build one using @jiteovien's diagram; I remember at the Nueva School before Ma...

jbreen commented on Introducing the MapKnitter: Community Atlas project 4 months ago

This is great!!!!!

warren commented on Idea for Research Area Reviews 4 months ago

I like the idea of an "update post" which kind of provides a working/coordination/discussion spa...

silentsairam commented on Increase in Human Death space 4 months ago

Some of the research and insights I studied with people and visited some cemeteries and burial gr...

stevie commented on Idea for Research Area Reviews 4 months ago

@sashadev-sky I agree, some combination of the two could be best! I also really like the "regular...

stevie commented on Idea for Research Area Reviews 4 months ago

Hi @gauravano this is great! on 3: This is a really helpful idea. I hadn't thought of a place w...

KristinaTamara commented on Can you help us with calibrating our spectrometer? 4 months ago

can you please give us a picture of calibration for our spectrometer? thanks in advance that wil...

liz commented on What could be some applications of a hand-powered paper centrifuge? 4 months ago

Thanks @profpearce ! Looks like you and your group worked on creating this, is that so?

warren commented on What could be some applications of a hand-powered paper centrifuge? 4 months ago

Wow awesome!!! Thanks for sharing!!

profpearce commented on What could be some applications of a hand-powered paper centrifuge? 4 months ago

And the link https://doi.org/10.3390/instruments3020030

profpearce commented on What could be some applications of a hand-powered paper centrifuge? 4 months ago

Here is a fully 3D printed hand powered one --

warren commented on Raspberry Pi Camera Rig 4 months ago

Oh awesome! Yeah pi-builder is intended to make it easy to reproduce carefully configured sd car...

kaustubh_nair commented on Introducing the MapKnitter: Community Atlas project 4 months ago

Awesome! Glad to see we're connecting with more people across the world and making a bigger impa...

seankmcginnis commented on Raspberry Pi Camera Rig 4 months ago

That is great and thank you for following up. I am currently working with some folks @ Rutgers t...

warren commented on Raspberry Pi Camera Rig 4 months ago

Hi! Noting that we've set up a quick-start SD card image for raspberry pi cameras that's pretty ...

liz commented on Step 1: Join Public Lab's Transifex project 4 months ago

@liz has marked @gauravano as a co-author.

molangmuir10 commented on Set up a Raspberry Pi Camera with Pi Builder 4 months ago

Hi Bronwen - I posted you the below question because it wasn't working but then after about half ...

molangmuir10 commented on Set up a Raspberry Pi Camera with Pi Builder 4 months ago

Hi Bronwen, great! I will try this afternoon and let you know!

Community Mapping Fellowship

by stevie 6 months ago | 0 | | 700 | 2

UI Wireframe for Profile Page

by lekhidugtal 6 months ago | 6 | | 199 | 1

How can nitrogen/nitrates/ammonia be measured?

Question by warren 6 months ago | 3 | | 103 | 0

Harmonic Modes in a Red Laser Diode

by wln215 6 months ago | 0 | | 92 | 1

MapKnitter map of My map

by sidntrivedi012 6 months ago | 0 | | 60 | 0

Made a map using Mapknitter.

by sidntrivedi012 6 months ago | 0 | | 52 | 0

How do I get the webcam feed on Spectral Workbench?

Question by KenSuke 6 months ago | 1 | | 116 | 0

Mapping at Tidwell Park in Houston

by joyofsoy 6 months ago | 0 | | 194 | 3







A shared knowledge base for community science

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Public Lab Nonprofit Team

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h2s

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waterquality

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datalogging

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babylegsposter

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microscope-photos

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