Community research

JSummers commented on How to build a spectrometer for detecting fetanyl in street drugs using the Atmel SAM4S Xplained Pro about 3 years ago

Building a spectrometer is a fine university project, but this will not work for detecting fentan...

warren commented on Collaboratively write the new Pocket Guide to Grassroots Mapping about 3 years ago

OK, one more version with page numbers! booklet-publiclab-1-pagenumbers.pdf

stef commented on How to build a spectrometer for detecting fetanyl in street drugs using the Atmel SAM4S Xplained Pro about 3 years ago

This may not be a project to determine the quantities of the subject of your concern. The spectro...

amirberAgain commented on Imagining & testing Polarized Light Microscopy for Silica dust speciation about 3 years ago

Will try to!

stevie commented on Imagining & testing Polarized Light Microscopy for Silica dust speciation about 3 years ago

Hi there! We're going to be chatting about this on the OpenCall tomorrow at 2pm Central if you're...

david_uwi commented on Homemade spectrometer about 3 years ago

Update: The diode array has gone from obsolete to unobtainable in a matter of a few months. I am ...

david_uwi commented on 3D Printed CCD Spectrometer (WheeTrometer 3.0) about 3 years ago

Sadly the diode array has also gone from "end of life" to obsolete to unobtainable. I'm getting t...

Karthickraj commented on 3D Printed CCD Spectrometer (WheeTrometer 3.0) about 3 years ago

Hi, the collimating lens and slit links are not available. Can someone please tell me the alterna...

amirberAgain commented on Imagining & testing Polarized Light Microscopy for Silica dust speciation about 3 years ago

What could be applicable here is a lens free holographic microscope. I've been wanting to build o...

JSummers commented on Desktop Spectrometer Kit Availablility about 3 years ago

Hi @nyck31, The short answer to your question is no. The spectrometer will measure light in the...

nyck31 commented on Desktop Spectrometer Kit Availablility about 3 years ago

Hi, I am new to spectometry and was wondering if the spectrometer built with the kit could detect...

Ag8n commented on Common low-cost technique limitations and strategies for impact about 3 years ago

How successful have these spectrometers been with reflectance measurements?

El_Capitan commented on an answer about I can't enter a password when I try to login to Spectral Workbench. So I can't log in at all. about 3 years ago

Warren, Thanks for all your help. It seems like it was something weird with my account, I logged ...

storacremu commented on an answer about I can't enter a password when I try to login to Spectral Workbench. So I can't log in at all. about 3 years ago

I'm currently logged into publiclab.org in the window next to it. When I click on "log in" on the...

G33K4P00RV4 commented on an answer about Paper for printing about 3 years ago

Thanks!

warren commented on an answer about CSV files from spectra about 3 years ago

That's right! We thought 0-100 would be more familiar to people, but the original values are pres...

warren commented on Paper for printing about 3 years ago

No problem -- i guess, so for example, I'm not sure if red ink shows up on black paper, but we us...

warren commented on I can't enter a password when I try to login to Spectral Workbench. So I can't log in at all. about 3 years ago

Ah, ok! Based on your screenshot you're at the first screen. You can enter your username and it s...

storacremu commented on I can't enter a password when I try to login to Spectral Workbench. So I can't log in at all. about 3 years ago

Thanks for your reply! When I click "login" there is no space to enter a password. https://i.imgu...

warren commented on Is it possible to discern jagged from rounded particles using a DIY microscope? about 3 years ago

Reading through Mathew's note, i don't see a clearly labeled one, but I imagine we could find one...

warren commented on Is it possible to discern jagged from rounded particles using a DIY microscope? about 3 years ago

Gretchen, is there an example image (showing rounded and jagged edges) we can use as a reference ...

G33K4P00RV4 commented on Paper for printing about 3 years ago

Yes, I was referring to the spectrometer. Non black ink on non black paper. Sorry if I was a litt...

stevie commented on an answer about What are best practices for hosting family friendly events? about 3 years ago

This is great. Thank you!

GreenFrogg commented on Measuring Air Quality (PM) @ new years eve during fireworks about 3 years ago

@ Warren, I will try to make a blog. Have to make time :-). There are a lot of differences with t...

stevie commented on an answer about What resources are available to help people monitor noise pollution? about 3 years ago

Also from Caren Cooper of SciStarter: "...Sound Around Town. http://soundaroundtown.org/ We have ...

GreenFrogg commented on Measuring Air Quality (PM) @ new years eve during fireworks about 3 years ago

This is one hour after midnight:

Alex_the_Ukrainian commented on Small DIY aerostat "Uchbovy" made in Kharkiv, Ukraine about 3 years ago

Hi! Happy New Year! We here in Ukraine continue to work on DIY small aerostats/balloons for ecol...

zengirl2 commented on When would you choose to monitor noise with an app verses a stand alone monitor? about 3 years ago

Using apps is certainly handy for when the noise issue is unexpected. One of the apps I blogged a...

stevie commented on Sedimentation in the FL panhandle about 3 years ago

Thanks for posting! Just adding in some text and a link I gathered from a chat with @ChristianWag...

Ag8n commented on Spectroscopy & My Life So Far about 3 years ago

One of the links on the page was for an aotf nir spectrophotometer. Part of this instrument was ...