Microscopy and micro-range

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    20200909 stub
    20211106 - ping <L @KHG

Ties to:
    * 🔗stuff; 🔗ordering — which ones whe have, which ones to order...
    * 🔗natural-resources
    * 🔗medical
     * ###

*** Basics

    1 micron = 1/1000mm
    0.1mm = 100 micron
    magnification ranges: ???

    * eye loupe
    * usb microscope on stand
    * cable micro camera

    #tobuy !!!

also see #chemistry

    * microscopy glass
    * poker ?! (to turn stuff)
    * thing to grab onto micro stuff
    * pipettes
    * magnetic stirrer
    * [...]

(L:) Digital microscope

A digital microscope is a variation of a traditional optical microscope that uses optics and a digital camera to output an image to a monitor, sometimes by means of software running on a computer. A digital microscope often has its own in-built LED light source, and differs from an optical microscope in that there is no provision to observe the sample directly through an eyepiece. Since the image is focused on the digital circuit, the entire system is designed for the monitor image. The optics for the human eye are omitted.
    → https://en.wikipedia.org/wiki/Digital_microscope

*** subjects

* dermatology (pest)
    nits 800x300 micron
    mites ~500 micron

    * http://ojcpcd.com/cohen-yoon/dermatoscopic-diagnosis-of-scabies/

* pests/biology ID

* water (and contaminants?)
    amoeba ~10-2000 micron

* microbiology / medicine
    white blood cells: >10 micron 

* bacteria ... like conjunctivitis
    """Staphylococcus aureus, Streptococcus pneumoniae, and Haemophilus influenzae"""
    …and the spherical cells of Staphylococcus aureus are up to 1 μm in diameter

* agriculture

seed ID?
pest ID?

The most basic microscope you need to work with on the farm needs a magnification of 10x, 20x and 40x. If you have more money to spend it is ideal to get magnification of 4x and 100x oil. You need an adjustable light source and stage (platform) and preferably 10x eyepieces. You’re well advised to go to one of the many microscope courses on offer.


*** PAD

problems !!!
    * images you find easily online (to help recognizing things) are from electron microscopes
    * [...]

oil immersion


can i try?

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