For me it is the fact that our blood contains iron. I earlier used to believe the word stood for some ‘organic element’ since I couldn’t accept we had metal flowing through our supposed carbon-based bodies, till I realized that is where the taste and smell of blood comes from.

    • paul@techy.news
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      1 year ago

      I’m not exactly sure how it worked in practice, but if it’s anything like simple aircraft engines with carbs, there’s a mixture control that you’d use in addition to the throttle to control air intake.