Health, food and farming
Haemocytometer grid and how to count (improved Neubauer)
Haemocytometer grid: the 0.100mm depth is what turns an area into a volume, so one 1mm square holds exactly 0.1 microlitres
This drawing comes from one YAML file. No shape was moved by hand.
Notes in the source (in Japanese)
深さ 0.100mm が、面積を体積に変える。
目盛りは面積しか区切っていない。カバーガラスを載せると隙間が 0.100mm に決まり、1 大ブロック(1mm 角)= 0.1µL = 10⁻⁴mL になる。
境界に触れた細胞は、相対する 2 辺のどちらか一方だけを数える(上と左)。隣のマスがその分を数えるので、全体では合う。
Source (YAML)
examples/gallery/213-血球計算盤の目盛り.zumen.yaml
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