Comments

Author Comment Last activity Moderation
warren "Adding this to the comments of the post too, but i also recommend: cotton swabs bring rubber gloves and plenty of mineral oil! and extra AAA batt..." | Read more » almost 11 years ago
warren "Hi, Steven - exciting to see this work. Do you have any photos from during your experiments to share? I'd love to see how you set things up. " | Read more » almost 11 years ago
warren "Wow, amazing progress! I love the photoshoot. Can you upload the sketchup files etc. in the research note as well? " | Read more » almost 11 years ago
warren "There's been a discussion of the Tellspec here: http://publiclab.org/notes/nemo/10-09-2013/cheap-spectrometer-fundraiser-on-indiegogo There's also..." | Read more » almost 11 years ago
warren "Great similar concept but for tiny quantities, posted at Hackteria's wiki: http://hackteria.org/wiki/index.php/DIY_NanoDrop " | Read more » almost 11 years ago
warren "Huh. do laser diodes have as narrow a bandwidth as a laser? " | Read more » almost 11 years ago
warren "Well, it's your call -- it'd be great to test some residue and we've worked with tarballs from crude that've been sitting on beaches for weeks in t..." | Read more » almost 11 years ago
warren "Marlokeno - thank you for highlighting and documenting this awful looking situation. When did you take the photos? Did you take samples of any of t..." | Read more » almost 11 years ago
warren "I wanted to work off of the actual models (or prototype models) Mathew and others made, but didn't have time to do a scaled model. Also, figuring o..." | Read more » almost 11 years ago
warren "The program runs in the browser, such as Chrome, Firefox, or Opera: https://spectralworkbench.org In the footer of every page is a link to the sou..." | Read more » almost 11 years ago
warren "Where did you try to install it from? SpectralWorkbench.org has been a purely web-based program that does not require installation for a couple yea..." | Read more » almost 11 years ago
warren "Wow, that's great. Did you use SpectralWorkbench to collect your data about the different samples you used to build your model? It'd be great to se..." | Read more » almost 11 years ago
warren "Hello - very interesting project! Were you able to distinguish different percents of milkfat? What do the two graphs you used represent? You can p..." | Read more » almost 11 years ago
warren "We are now putting together an initial spectrometry oil testing kit... it'll need a lot of refinement but we really want to get moving on this. Che..." | Read more » almost 11 years ago
warren "Interesting. Your lead image seems not to have uploaded properly, do you want to try re-uploading it? " | Read more » almost 11 years ago
warren "Hmm, I'm worried that the ~840nm spike is just a camera artifact -- see how it's also represented in this spectrum of a halogen light through coca-..." | Read more » almost 11 years ago
warren "Can you post links to some of your spectra demonstrating this? I think it might be best to just post a research note with some photos of your setup..." | Read more » almost 11 years ago
warren "Hmm, do you have enough UV light? No, the sample container shouldn't matter, as long as you are seeing a glow coming from the sample. Can you post ..." | Read more » almost 11 years ago
warren "yes! there are CSV, JSON and XML download links on each spectrum page at https://spectralworkbench.org. " | Read more » almost 11 years ago
warren "We had a Phonegap prototype going but they do not expose the raw video feed, but require the user to go through the camera widget, unfortunately. I..." | Read more » about 11 years ago
warren "Hi, Nathan - yes, Chrome doesn't have a camera selection interface yet, and I've filed a bug report with the Chromium team. Firefox for Android doe..." | Read more » about 11 years ago
warren "Sunwukong - I would love to see a pic of your setup; is it connected to a telescope? " | Read more » about 11 years ago
warren "@BKF11 - calibration works super well with our current setup; it's sub-nanometer. The big problem with an SLR (besides expense) is that they don't ..." | Read more » about 11 years ago
warren "Hi - it doesn't seem like it's lined up with the light bulb; but you could try to diffuse the light by placing a piece of semi-transparent (milky) ..." | Read more » about 11 years ago