Health, food and farming
Top-mounted aquarium filter in section, and how nitrification works
Aquarium filter in section: it does not remove the poison, it turns it into a weaker one — and the water must meet the mechanical media before the biological
This drawing comes from one YAML file. No shape was moved by hand.
Notes in the source (in Japanese)
ろ過装置は、汚れを消す機械ではない。
ゴミをこし取り(物理)、溶けた毒を弱いものへ変える(生物)装置。水が先に当たるのが物理ろ材、後が生物ろ材 —— 逆だと生物ろ材が目詰まりする。
アンモニア →(ニトロソモナス)→ 亜硝酸 →(ニトロバクター)→ 硝酸。硝酸はろ過では減らない。 水換えか、水草に吸わせるかの 2 つだけ。
Source (YAML)
examples/gallery/217-上部式フィルターの断面.zumen.yaml
More in this field
How an outpatient moves through a hospital — reception, consultation, tests, payment, prescription — and where each department keeps people waiting
A school meal kitchen split into contaminated and clean zones, with the paths of food, people and crockery kept from crossing
An operating room laid out around the table: surgical light, anaesthesia machine, electrosurgical unit and monitors, with the sterile field
The fourteen meridians and their principal points, named to the WHO standard acupuncture point locations
A packing instruction for a boxed lunch: what goes in each compartment, how much, which way up, and in what order
A periodontal chart where all 32 teeth are measured at six points each, recording pocket depth, bleeding and mobility
A sabiki fishing rig from main line to six hooks, feeder cage and sinker, with the gauge and length specified for every section
High-density apple training, with tree and row spacing