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Microscope Slides Cut from Sheet, Coverslips from a Blown Bubble
A microscope slide is a strip of plain glass about 75 × 25 mm and 1 mm thick with smoothed edges; a coverslip is a much thinner square that presses the specimen flat. Cut the slides from thin sheet and grind the edges; for coverslips, blow a thin bubble on a glass tube and cut flat pieces from it.
The picture: a tray of early 20th-century prepared slides under coverslips, museum of the Institut Pasteur de Lille.
Hagati
An afternoon
Amabwiriza
1
1
Cut the slides
Cut the slides
Mark thin glass sheet in 25 mm strips, score and snap them, then score and snap each strip at 75 mm.
Ibikoresho by'iyi ntambwe:
Ikibaho cy'ikirahure1 igiceIbikoresho bikenewe:
Igikata ikirahuri
Umurongo w'ipima
Amadarubindi y'umutekano2
2
Grind the edges
Grind the edges
Rub every edge and corner on a flat glass plate with wet fine grit until smooth to the touch. Wash and dry.
Ibikoresho by'iyi ntambwe:
Amazi1 litiroIbikoresho bikenewe:
Ikigereranyo cya Digitale cy'Amasentimetero 6
Udukombe twa karubide ya silikoni3
3
Blow a thin bubble
Blow a thin bubble
Close the end of a glass tube in the torch, heat it evenly and blow a large, very thin bubble, turning it as you blow (our method).
Ibikoresho by'iyi ntambwe:
Agafuka k'imiyoboro y'ikirahure1 igiceIbikoresho bikenewe:
Itara ryo ku meza ryo guhuha ikirahureAmadarubindi y'umutekano
Uturindantoki twihanganira ubushyuhe4
4
Cut coverslips
Cut coverslips
When cold, break the bubble and pick the flattest pieces from its sides. Trim them to small squares with the cutter and check the thickness with the caliper; keep only even, thin pieces.
Ibikoresho bikenewe:
Igikata ikirahuriIkigereranyo cya Digitale cy'Amasentimetero 6Amadarubindi y'umutekano5
5
Store clean
Store clean
Wash slides and coverslips and keep them apart in a closed jar so they stay free of dust and grease.
Ibikoresho by'iyi ntambwe:
Amazi1 litiroIbikoresho bikenewe:
Icupa ry'Ikirahure6
6
Slides from a sheet
Slides from a sheet
Gupakira ikaye ya Jupyter…
7
7
Limits
Limits
Slide size and edge finish are as Wikipedia gives them; the blown-bubble coverslips are our method. Blown coverslips vary in thickness: measure them, since the wrong thickness blurs high-power images.
Ibikoresho
3- 1 igiceUmwanya
- 2 litiroUmwanya
- Umwanya
Ibikoresho bikenewe
8- Umwanya
- Umwanya
- Umwanya
- Umwanya
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