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Comment by JKCalhoun | original | Show HN: Carton Clock – A working pendulum clock made from empty drink cartons
[−]JKCalhoun · 2026-11-15 Sun 12:51 UTC · link
Tangent: public school in the Midwaste in the 1970's… I remember we had a good number of guests visit elementary school, Junior high [1]. There would be perhaps an all-school auditorium/gymnasium event—like some kind of TED talk…

One such speaker was a Vietnam prisoner of war who gave a talk about his time in a Viet Cong prison (school appropriate?). He had built a clock while in prison from bits of metal from cans, perhaps a coat hangar or some other kind of wire… And he had brought a replica of it. For some reason that fascinated me. I suppose the ingenuity of humans when left with all the time in the world… idea hands and all that.

[1] (Or maybe it's selective memory and they were so not-the-normal-routine and that is why they stick in my head. There were plenty of other wild all-school events: an Apollo astronaut, some chemical company I suspect—performing feats of chemical magic, Simas Kudirka, some guy with a kind of doomsday computer—perhaps reflecting overpopulation and dwindling resources by 2026…)