| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| farhanbinkhalid50 | "Bagpipes are a woodwind instrument using enclosed reeds fed from a constant reservoir of air in the form of a bag. The Scottish Great Highland bagp..." | Read more » | almost 5 years ago | |||
| warren | "Wow, great info. Love this! " | Read more » | over 6 years ago | |||
| michalby | "Mineral oil should work. I sometimes use on a professional immersion objectives a mixture of drugstore-bought liquid paraffin (sold as a laxative) ..." | Read more » | over 6 years ago | |||
| warren | "Awesome, thanks! yes, alcohol is surprising! " | Read more » | over 6 years ago | |||
| 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 » | over 6 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 » | over 6 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 » | over 6 years ago | |||
| warren | "@partsandcrafts -- is the oil absolutely required? Like, is it possible to skip this if you don't need the extra... awesomeness? @wmacfarl @kgradow..." | Read more » | almost 7 years ago | |||
| warren | "Lots of dense info on this here, but I'm not sure for a given lens if you can just add oil or not? https://en.wikipedia.org/wiki/Oil_immersion " | Read more » | almost 7 years ago |