xia@lemmy.ca to ShowerthoughtsEnglish · 3 days agoIf you reverse the polarity of a fire-alarm, you get a fire-starter.message-squaremessage-square17linkfedilinkarrow-up194arrow-down14
arrow-up190arrow-down1message-squareIf you reverse the polarity of a fire-alarm, you get a fire-starter.xia@lemmy.ca to ShowerthoughtsEnglish · 3 days agomessage-square17linkfedilink
minus-squarexia@lemmy.caOPlinkfedilinkEnglisharrow-up13·3 days ago…and likewise, many things stop working during a fire, making them rudimentary fire-detectors.
…and likewise, many things stop working during a fire, making them rudimentary fire-detectors.