general
general


Author Comment Last activity Moderation
mjcamerino92 "Wow that was incredibly helpful! The 5 mb file size is not an issue. It looks like with the 40x objective and the Pi Cam V2.1 you were able to ach..." | Read more » about 5 years ago
MaggPi "Michael, Take a look at this comparison study of different microscopes: https://publiclab.org/notes/MaggPi/08-19-2019/microscope-calibration-with-i..." | Read more » about 5 years ago
zengirl2 "My team is specifically working on this issue concerning Indonesia, but other teams are also working on other countries. So, I could potentially ma..." | Read more » about 5 years ago
stevie "Hi!! --Specifically Indonesia, or people who are interested in wildfire issues in other places as well? " | Read more » about 5 years ago
ishakore32 "Thanks for great info. [ How_to_loose_weight_without_gym_.pdf more](https://www.blogwithisha.blogspot.com/) " | Read more » about 5 years ago
nstarli "Where can I find the blue calibration card? I could not find it on the public lab store. " | Read more » over 5 years ago
liz " Thank you! " | Read more » almost 6 years ago
sagarpreet " Hi @liz , The image source of the above formulae is : https://en.wikipedia.org/wiki/Air_quality_index The map made by purpleair community is he..." | Read more » almost 6 years ago
liz " hi @sagarpreet , could you provide a link to your source for the image of computing the AQI? thanks! " | Read more » almost 6 years ago
FahimR " Amazing articles quality and presentation. Thank You so mush for sharing. Windows 7 Free Windows 7 Ultimate Free Windows 7 Oct 2018 Free Windows ..." | Read more » almost 6 years ago
nedhorning " Nice photos. I suggest using lighting conditions similar to those for the photos you plan to take. Once you get the white balance routine down it'..." | Read more » almost 6 years ago
cagiva " @nedhorning, actually your question/suggestion fixed the calibration. After switching to "Auto" to take a picture to compare and switching back to..." | Read more » almost 6 years ago
nedhorning "Do the images you acquire using "Auto" mode look the same or very similar to the ones you acquire using the custom white balance? " | Read more » almost 6 years ago
cagiva " @nedhorning, I'm actually using the "Custom" option following the steps shown here, but using the Red calibration card. " | Read more » almost 6 years ago
nedhorning " Hi: It looks like you are using "Auto" mode when taking the photo. I don't have this camera but I found this web site that might help: https://sup..." | Read more » almost 6 years ago
cagiva "@cfastie, You were absolutely correct. The Blue card from PublicLab arrived today so I redid the white-balancing calibration with it and I got much..." | Read more » almost 6 years ago
cfastie "Performing a custom white balance on a blue-filtered NIR camera fools the camera into exaggerating the brightness of the red channel. The red chann..." | Read more » almost 6 years ago
jeffalk "I just reviewed this conversation and would like to add to it and would like comments from @sagarpreet and @guolivar if possible. About the USEPA ..." | Read more » about 6 years ago
johnk21 "Hi admin, A very well article written. You have done a good research on this topic. Amazing writing skills shown. Here is a piece of my writing Wha..." | Read more » about 6 years ago
guolivar "Great work @sagarpreet! This might get rambly because there is no right answer but I'll try to explain why and what then. The first thing you nee..." | Read more » over 6 years ago
sagarpreet "Which one makes more sense ? " | Read more » over 6 years ago
sagarpreet "Hi , I have 2 options for making heatmap : 1.) Either use global maxima and global minima value (of PM2.5 in ug/m3) to make heat map . 2.) Or to ..." | Read more » over 6 years ago
sagarpreet "Can someone also help me with this ? I have 2 options for making heatmap : 1.) Either use global maxima and global minima value (of PM2.5 in ug/m3..." | Read more » over 6 years ago
sagarpreet "Yes it makes sense...PM2.5 value seems to be more appropriate . Thank you :) " | Read more » over 6 years ago