# Microscopes question:microscopes

A microscope is an optical instrument that can be used for magnification. It's often made up of multiple parts, including: * optics (lens, focus, calibration) * a camera * a lighting system * a moving stage to hold slides Community Microscope Kit We’ve developed a microscope kit you can build yourself - the result of many teams’ work coming together! Read more about the Community Microscope! ## Questions Questions can be either frequently asked questions, or "next step" challenges we're looking to solve. [questions:microscopes] ## Activities Activities show how to use this project, step by step. [activities:microscopes] ## Updates [notes:microscopes] ...

Author Comment Last activity Moderation
warren "hi, @dusjagr!! Still digging through all the great work on Hackteria -- have you used this design with a Raspberry Pi? @partsandcrafts @bmela @kgr..." | Read more » almost 5 years ago
stevie "This post walks through collecting a sample, and some examples. They also reference this resource for collecting dust samples: http://www.funsci.co..." | Read more » almost 5 years ago
warren "Awesome, thanks! yes, alcohol is surprising! " | Read more » almost 5 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 » almost 5 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 5 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 5 years ago
warren "Added a follow-up to collect some reference images of respirable silica particles, here: https://publiclab.org/questions/warren/02-22-2018/what-do-..." | Read more » almost 5 years ago
warren "Added a follow-up to collect some reference images of respirable silica particles, here: https://publiclab.org/questions/warren/02-22-2018/what-do-..." | Read more » almost 5 years ago
warren "Note these prior questions related to this one: https://publiclab.org/notes/mathew/10-07-2016/sizing-images-at-portland-science-hackday And this,..." | Read more » almost 5 years ago
warren "This blog is by someone who works for an energy company, helping to mine frac sand, and publishes a book called "Finding Frac Sand" -- yikes. The ..." | Read more » almost 5 years ago
warren "TXSharon posted this note about photographs of sand dust from a sandbox: http://www.texassharon.com/2012/07/31/take-this-nice-fracking-sand-for-yo..." | Read more » almost 5 years ago
Ag8n "Ok, are talking about the difference between amorphous silica and crystalline silica? The amorphous is generally safe and crystalline is generally..." | Read more » almost 5 years ago
warren "@DavidMack posted on sticky pads a while back on the #particle-sensing page: Essentially tape, sticky pads have the advantage of capturing a recor..." | Read more » almost 5 years ago
warren "Also see this great section by @DavidMack -- https://publiclab.org/wiki/particle-sensing#EPA+Test+Methods " | Read more » almost 5 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 5 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 5 years ago
kgradow1 "The cost of all of them actually vary a lot. We took a 40x apart at the barnraising and realized it only has two lenses inside of it, which seemed..." | Read more » about 5 years ago
stevie "hmm maybe we could get 1 or 2 10xes. Any idea why the cost on the 10x ones here vary so much? http://www.amscope.com/accessories/objective.html?i_m..." | Read more » about 5 years ago
kgradow1 "I'd love to work through a build at 4x or 10x, which should a much simpler in terms of onboarding and just learning how to use the scope. At those..." | Read more » about 5 years ago
kgradow1 "40x for $22: http://www.amscope.com/40x-achromatic-microscope-objective.html 100x for$31: http://www.amscope.com/100x-achromatic-microscope-oil-..." | Read more » about 5 years ago