| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| 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 » | 9 days 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 » | 24 days 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 » | 26 days 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 » | about 1 month 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 » | about 1 month 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 » | about 1 month 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 » | about 1 month 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 » | about 1 month 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 » | about 1 month 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 » | 4 months ago | |||
| Ag8n | "Is this related to " lessons learned- participation in Indonesian irrigation projects" by Erwin Hofman? " | Read more » | 4 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 » | 8 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 » | 8 months 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 » | 9 months 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 » | 9 months ago | |||
| bhamster | " @bhamster has marked @purl as a co-author. " | Read more » | 9 months ago | |||
| JuliaGuerrein | "Hi, Stevie! We hope you are well! I just updated the post to include the link :smiley: " | Read more » | 10 months 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 » | 10 months 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 » | 10 months ago | |||
| stevie | "Sorry I missed this! Can you share a link to the presentation? or embed it somewhere? " | Read more » | 10 months 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 » | 10 months ago | |||
| Ag8n | "As with everything else, there are many possible interferences. Is this project still active? " | Read more » | 11 months 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 » | 11 months 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 » | 11 months 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 » | 11 months ago | |||
| natematias | "Here's an in-progress prototype. " | Read more » | 11 months 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 » | 11 months ago | |||
| TheChessGym | "STEM Magnet Program " | Read more » | 11 months ago | |||
| Ag8n | "I'm looking forward to your protocols and testing! Good luck! " | Read more » | 11 months ago | |||
| Abraxas | "Try the new UVEX from Shelyak and get that range and everything else to ultraviolet. The price tag is pretty high but there is a DIY that might kee..." | Read more » | 11 months ago |