Post #2730209
2026-05-14 09:38 UTC
in case you don't know your latitude, set up a Foucault pendulum.
ω=360°⋅sin(ϕ)/24h
ϕ is the latitude
ω is the angle the pendulum goes by in 1h
https://www.instructables.com/Proving-Earths-Rotation-With-a-DIY-Foucault-Pendul/
#flatearth
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