| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| casadaborracha_garra | "https://docs.google.com/presentation/d/18ovCR07aUYKgYiAthe2g827jGl6ApY9onlko8SfU8Gs/edit?usp=sharing " | Read more » | about 2 months ago | |||
| podologo_peecorpo | "https://docs.google.com/forms/d/e/1FAIpQLSfVhmXKUYsgKYnvYVupUCWvD0BP_BBqONB-J_mnLEYiST9q0g/viewform " | Read more » | about 2 months ago | |||
| iransacco | "iransacco did this! " | Read more » | 7 months ago | |||
| livingenaanasebh | "wow this is wondeful " | Read more » | over 1 year ago | |||
| bhamster | "Thanks @Ag8n! I ended up using a lens from an old laser pointer after discovering that the CD/DVD drive lens was really small (only a couple millim..." | Read more » | almost 2 years ago | |||
| Ag8n | "Very impressive! Which plastic lens did you use? The one from the computer drive or the one from a laser pointer? Thank you!! " | Read more » | almost 2 years ago | |||
| bhamster | "I did this! Here's a photo of my microscope in action (without the smartphone, because I needed it to take the photo...). The tiny yellow-ish spec..." | Read more » | almost 2 years ago | |||
| alejobonifacio | "wow! I saw the video! It is very interesting how she uses transparent plastic as a slide and coverslip. " | Read more » | almost 2 years ago | |||
| Ag8n | "Found another good example. It's from six years ago on the PBS series "Gross science". The title on youtube is "See microbes with this DIY phone ..." | Read more » | almost 2 years ago | |||
| liz | "@bronwen Check this out! " | Read more » | almost 2 years ago | |||
| Ag8n | "Very helpful video on the lens removal. Thank you. " | Read more » | almost 2 years ago | |||
| Ag8n | "Yes, that did it! Thank you very much. Only did a quick once over of the diagrams. It looks like they take the focusing lenses out of a CD drive ..." | Read more » | almost 2 years ago | |||
| alejobonifacio | "Thanks for let me know. Please try with this link... https://www.researchgate.net/publication/343539752_Micro-Hoek_Manual_de_Construccion " | Read more » | almost 2 years ago | |||
| Ag8n | "Having trouble with the "digital manual of construction in spanish". For whatever reason, the link doesn't work here. Could you please post the i..." | Read more » | almost 2 years ago | |||
| Ag8n | "The data shows that natural titration indicators with long shelf life (90 days) do exist ( see the Hippeastrum note above). However, Red cabbage d..." | Read more » | about 2 years ago | |||
| Ag8n | "The research shows that natural titration indicators, with good shelf life, do exist ( see Hippeastrum, above). However, Red cabbage does not appe..." | Read more » | about 2 years ago | |||
| Ag8n | "The acid (from the pH 3 solution ) for the cabbage indicator could mess up some titrations. A blank might need run(and, depending on the titration..." | Read more » | about 2 years ago | |||
| Ag8n | "Clarification. Acidic media is pH 3. " | Read more » | about 2 years ago | |||
| Ag8n | "Check this reference: "Evaluation of red cabbage dye as a potential natural color for pharmaceutical use" by Neela Chigurupati, et. al. Industrial..." | Read more » | about 2 years ago | |||
| Ag8n | "Some natural indicators can have shelf lives of up to 90 days in solution. See "Hippeastrum hybridum anthrocyanin indicators of acid - base titrat..." | Read more » | about 2 years ago | |||
| Ag8n | "Interesting paper on this same subject. " Application of Butterfly Pea extract as an indicator of acid - base titrations " by Nyi Mekar Saptarini ..." | Read more » | over 2 years ago | |||
| hunternick363 | "This is a nice and simple method of measuring the PH of a solution. I remember these kinds of experiments we used to do in science class. We have t..." | Read more » | over 2 years ago | |||
| stevejohnson | "thanks for the information " | Read more » | over 2 years ago | |||
| Ag8n | "For a couple other reads, look up "The Effect of pH on Color Behaviour of Brassica oleracea Anthocyanin" in Journal of Applied Sciencies, volume 11..." | Read more » | over 2 years ago |