Comments

Author Comment Last activity Moderation
Ag8n "Ok. It's gone about the way you would expect. Formal sources say it is safe to live i n East Palestine. But the average Joe is still having trou..." | Read more » about 1 month ago
liz "Couldn't get the image to load, so here's a link: https://twitter.com/PublicLab/status/1737533138082177462 " | Read more » 4 months ago
liz "Report back: https://publiclab.org/notes/liz/12-19-2023/public-lab-open-source-meetup-in-nairobi " | Read more » 4 months ago
EdMallon "The e360 course required different sensors for each lab, so we tweaked the 2-part logger with 3D printed rails holding mini breadboards to provide ..." | Read more » 5 months ago
Ag8n "My apologies. I messed up. Your camera does some image processing similar to some of the special "indexes" used in Hunter instruments. They meas..." | Read more » 5 months ago
Ag8n "This is a little strange. In most fields, color analysis is usually done with an instrument called a hunter colorimeter. Some of the instruments ..." | Read more » 5 months ago
ektopyrotic "Dual bandpass filters used on the modified DJI Mavic 2 Pro Full-Spectrum Hasselblad can be purchased here: Both Types of Filters for sale here: ht..." | Read more » 6 months ago
ektopyrotic "Dual bandpass filters used on the modified DJI Mavic 2 Pro Full-Spectrum Hasselblad can be purchased here: Both Types of Filters for sale here: ht..." | Read more » 6 months ago
ektopyrotic "Dual bandpass filters used on the modified DJI Mavic 2 Pro Full-Spectrum Hasselblad can be purchased here: Both Types of Filters for sale here: ht..." | Read more » 6 months ago
ektopyrotic "Dual bandpass filters used on the modified DJI Mavic 2 Pro Full-Spectrum Hasselblad can be purchased here: Both Types of Filters for sale here: ht..." | Read more » 6 months ago
ektopyrotic "Dual bandpass filters used on the modified DJI Mavic 2 Pro Full-Spectrum Hasselblad can be purchased here: Both Types of Filters for sale here: ht..." | Read more » 6 months ago
ektopyrotic "Dual bandpass filters used on the modified DJI Mavic 2 Pro Full-Spectrum Hasselblad can be purchased here: Both Types of Filters for sale here: ht..." | Read more » 6 months ago
Ag8n "Could you please give more details? Did some work with reflectance NIR spectrometry ( for polymer quantitation). It was much more involved than th..." | Read more » 8 months ago
Ag8n "Is this related to " lessons learned- participation in Indonesian irrigation projects" by Erwin Hofman? " | Read more » 9 months ago
EdMallon "The latest in our ongoing series of build videos supporting Dr. Beddows enviro-sci students who have to first build the logger(s) used to collect d..." | Read more » 12 months ago
Ag8n "Do NOT use standard, off the shelf strips, for food/drug applications. There are special tracibility and accuracy requirements. Normally, a coupl..." | Read more » about 1 year ago
EdMallon "A summary of the many waterproofing methods we've used over the years. Might be a few ideas there that Public Lab builders find useful: https://the..." | Read more » about 1 year ago
Ag8n "You have an excellent start on the project. But, from an analytical chemists point of view, can you say how the mercury was analyzed? Mercury can..." | Read more » about 1 year ago
bhamster " @bhamster has marked @purl as a co-author. " | Read more » about 1 year ago
JuliaGuerrein "Hi, Stevie! We hope you are well! I just updated the post to include the link :smiley: " | Read more » about 1 year ago
bhamster "Sharing some information on vinyl chloride from the Agency for Toxic Substances and Disease Registry (ATSDR): Inhalation is the primary route of e..." | Read more » about 1 year ago
Ag8n "According to cbsnews.com/news/east-palestine-ohio-train-derailment-toxic-chemicals-mike-dewine-national-guard-activated/ the spill contains vinyl c..." | Read more » about 1 year ago
stevie "Sorry I missed this! Can you share a link to the presentation? or embed it somewhere? " | Read more » about 1 year ago
sammy_6_2003 "UPDATE Prices have been adjusted since the original posting of the message in 2018. Please visit www.homeaircheck.com to find the current fees for ..." | Read more » about 1 year ago
Ag8n "As with everything else, there are many possible interferences. Is this project still active? " | Read more » about 1 year ago
Ag8n "Doggone spell check. It should be" These are emission lines, so no lamp is needed. " not " These intermission lines, so no lamp is needed. " " | Read more » about 1 year ago
Ag8n "Just caught this whole looking up some other stuff. The technique most commonly used is atomic emission spectroscopy AES. The flame is so strong,..." | Read more » about 1 year ago
warren "This looks v cool! Walkman style. I wonder how recoverable/measurable dust is from the tape when rolled up again. Would some kind of clock mechani..." | Read more » over 1 year ago
natematias "Here's an in-progress prototype. " | Read more » over 1 year ago
patcon "Trying to substitute this link in for the old Civic Hall blog link: http://web.archive.org/web/20180614162508/https://civichall.org/civicist/need-t..." | Read more » over 1 year ago