HackerDrip Coffee Makers — super simple, super cheap
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Further reading 2
Did the experiment measure what the everyday claim promises? →Start with a morning walk. Give each observation a precise verb: moved the eyes, reported a letter, measured an enzyme. When the verb changes, the research may be answering a different question.This video helps answer · Two cups and a table of burgersWithout a line of software, how does a machine know the next step? →Follow a pulse of water in a coffee maker and five scoring pulses in a pinball machine. Valves, cams and magnetic latches each leave an observable moment when the next step becomes possible.This video helps answer · Draw the loop: why does water go one way?
Caption notes
A drip brewer can lift water without a pump motor. Vapor expands in a heated tube, and a check valve closes the way back to the reservoir. Ejecting a slug relieves pressure and admits cold water for the next cycle.
Archived captions (transcription method unspecified) ↗Original passages · 3
a one-way valve and a tube that gets hotthe check valve prevents the water from moving back into the reservoirsame water, same coffee, same amount