| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| dcanprdn | "I do not know, but anything would be an improvement; just apply the oil (a bubble connecting slide through air to lens surface) and check the detai..." | Read more » | almost 7 years ago | |||
| warren | "Wow, thanks! So how close is actually helpful? I found a list of household oils and refractive indices and mineral oil is around 1.47-1.48 -- would..." | Read more » | almost 7 years ago | |||
| dcanprdn | "Just search microscope slides at https://www.carolina.com/ or https://www.wardsci.com/ or https://www.flinnsci.com " | Read more » | almost 7 years ago | |||
| dcanprdn | "Glass apparently has a refractive index of ~ 1.5 while air is 1.0. This means that light velocity is slower in glass. When light from a sample s..." | Read more » | almost 7 years ago | |||
| mathew | "glad you found the info, @ag8n! Some kite physics about altitude and line length is covered in notes on kite anemometers " | Read more » | almost 7 years ago | |||
| xose | "Just found this on my sunday net random navigation. Laser PM2.5 Air Quality Sensor For Arduino. £50GBP At the core there's this sensor SKU:SEN0177 " | Read more » | almost 7 years ago | |||
| Ag8n | "Wondered about that. The main plant Had a storm sewer. One of the small satellite plants had something labelled a storm sewer. But, when the sam..." | Read more » | almost 7 years ago | |||
| warren | "We also found some Tyvek here: http://www.diyhomecenter.com/dupont-tyvek-homewrap-roll-9x150 Tyvek HomeWrap - 9' x 150' - 1 Roll…Shop DuPont Tyve..." | Read more » | almost 7 years ago | |||
| stef | "Further to my previous replies, it may be possible to view the sun disk attenuated with the filters used by welders to view their work. I have not ..." | Read more » | almost 7 years ago | |||
| warren | "Yeah i was looking for that too... i forget in what thread we came up with that! " | Read more » | almost 7 years ago | |||
| amirberAgain | "Another point refers to here is the use of cross polarization, I guess that part of the importance of it is that some materials either have or don'..." | Read more » | almost 7 years ago | |||
| amirberAgain | "It looks like, at the least in part this is an open resource, some parts do require free registration see more here: http://www.mccroneatlas.com/ " | Read more » | almost 7 years ago | |||
| warren | "Great idea. There could be stages of analysis, narrowing in progressively. +1! " | Read more » | almost 7 years ago | |||
| warren | "I also posted a question over here to try to collect images from various sources of respirable silica for use as a reference in our #basic-microsco..." | Read more » | almost 7 years ago | |||
| Ag8n | "It gives a range of magnifications. As for sample prep- "samples were mounted in aroclor 5442 or the equivalent Carville refractive index liquid 1..." | Read more » | almost 7 years ago | |||
| gretchengehrke | "Also, its interesting that cristobalite is rounded. I will look in the literature to see if there is a relationship between cristobalite and silico..." | Read more » | almost 7 years ago | |||
| gretchengehrke | "I'm glad you brought this up, @Ag8n! @Mathew did some work with polarimetry too. See this research note: https://publiclab.org/notes/mathew/05-21-2..." | Read more » | almost 7 years ago | |||
| gretchengehrke | "Thank you so much, @Ag8n! This is exactly what I was hoping to see. I live near Duke University and can see if they have the books there too. Does ..." | Read more » | almost 7 years ago | |||
| liz | "Can someone add in both the "Why write research notes" quad that we printed into notebooks, and Molly's graphic? I don't have time to find them. Th..." | Read more » | almost 7 years ago | |||
| warren | "Got some good input on placement of the Code of Conduct link and text via @shannon -- thanks! " | Read more » | almost 7 years ago | |||
| warren | "Thanks, Craig! Great feedback. For the "interests" we want to be sure not to pigeonhole people as "scientists" "activists" as PL is all about buil..." | Read more » | almost 7 years ago | |||
| caufenkamp | "My thought, as a recent newcomer who was unfamiliar with Public Lab and Citizen Science, is that the How to Participate section in particular is wh..." | Read more » | almost 7 years ago | |||
| Ag8n | "See below These are photos taken from" the particle atlas", second edition, volume II, by mccrone. " | Read more » | almost 7 years ago | |||
| warren | "@zengirl2 @pdhixenbaugh @kgradow1 @sarasage what do you think of this? :-) " | Read more » | almost 7 years ago |