Comments

Author Comment Last activity Moderation
straylight " thanks solaris, yes, the yeast, like the sugar, has bolted. An analytical test for red and white wine, excellent, we are making progress :) Agre..." | Read more » almost 4 years ago
straylight " solaria, great work, much kudos deserved. A rigorous experiment. Like david_uwi, I wondered at why sucrose is absorbing visible light (VL) at all..." | Read more » almost 4 years ago
straylight "thanks ygzstc, that makes sense. I think that the approximation that relative intensity measured from the scope can be used in place of the log rel..." | Read more » over 6 years ago
straylight "Thanks for the question. My apologies that all of the graphs appear to have vanished (they have for me). Not sure why, maybe a hosting issue. Anyw..." | Read more » over 6 years ago
straylight "thanks khufkens, interesting graph and really well presented. On a qualitative level, you can see this by shining the red laser through a DVD grat..." | Read more » over 7 years ago
straylight "Good points and I understand how you feel, coming at his from a chemistry teachers viewpoint myself. I guess it depends on what experiments and dem..." | Read more » almost 8 years ago
straylight "In spectral workbench, when you are looking at a spectra, there is an option to export and save the data in a variety of formats, including xml and..." | Read more » about 8 years ago
straylight "Thanks for the question ichinarayan, I exported the spectra in csv form into microsoft excel. From there I selected the wavelengths I wanted to st..." | Read more » about 8 years ago
straylight "ah yes, good thinking. well done again on your work, a very well written research note as well. stu " | Read more » over 8 years ago
straylight "A rather nice exercise, well done. Quite surprising results I think, I would have predicted the extra sugar to have had minimal effect on the trans..." | Read more » over 8 years ago
straylight "Sreyanth, awesome work, I love the interface and well done on following the project through to completion. It adds a lot to the functionality of sp..." | Read more » about 9 years ago
straylight "wow, good results jeff, as it happens, I'm about to do a similar test on some filters which we use for another experiment. It is rather important t..." | Read more » about 9 years ago
straylight "wow, what a great sounding project Philipp. I like your thinking. Taking an average over 10 or more rows of the camera image is really good. The i..." | Read more » over 9 years ago
straylight "wow, great presentation Jeff. What a great catalog of achievements. " | Read more » over 9 years ago
straylight "nice work Dave, very impressive. Some excellent diagrams and graphs. I think that a lot of work that we might do with the spectroscope will be wor..." | Read more » over 9 years ago
straylight "I've just stumbled upon this, so sorry for the delay in responding. cfastie has pretty much nailed some of the difficulties you experienced, that w..." | Read more » over 9 years ago
straylight "thanks Brian, if you cut a big hole in the side of the bottle and pass the bunsen in through that. Then feed the gas hose in through a smaller hol..." | Read more » over 9 years ago
straylight "Chris, this is so cool, really good info. I wonder if it applies to single malts ? " | Read more » over 9 years ago
straylight "and how much does that thing cost Jeff ? " | Read more » almost 10 years ago
straylight "rather nice. I need to lift my game ! :) " | Read more » almost 10 years ago
straylight "Chris, you said: "At certain grating angles, it is not possible to see a sharp image of the spectrum when the grating is too close to the slit. Bu..." | Read more » almost 10 years ago
straylight "uhm, that is very good news. searching the database manually is painfully slow ! well done, thanks for modding the csv export. stu " | Read more » almost 10 years ago
straylight "well done cfastie, thanks for taking the time to conduct some measurements. I've been pondering over the pattern and the angles for some time now. ..." | Read more » almost 10 years ago
straylight "oh yeah, Love the lego optical bench and the discussion in the other research note. stu " | Read more » almost 10 years ago