Gyroscopes prove Earth is stationary.
Quick reality-check: A laser ring gyroscope detects Earth’s rotation (15° h⁻¹) within seconds; that’s why they’re built into aircraft navigation systems. The classic Foucault pendulum shows the same rotation visibly over a few hours—something flat-Earth models cannot mimic.
Why is this claim made?
The claim comes from a misunderstanding of how gyroscopes work. Flat-Earth proponents believe that if a gyroscope remains fixed relative to the ground, Earth must be stationary.
Why the claim doesn’t work
Ring-laser gyroscopes and Foucault pendulums actually demonstrate Earth’s rotation. Modern navigation relies on these instruments, which are calibrated to account for the planet’s 15° per hour turn.
Evidence against the claim
- Ring-laser gyroscopes register a 15°/hr rotation, matching Earth’s actual rotation rate.
- Aircraft and submarines use these devices for navigation, relying on the planet’s rotation.
- The Foucault pendulum’s precession is visible proof of Earth’s rotation.
Summary
Gyroscopes and pendulums are not evidence for a stationary Earth—in fact, they are among the best demonstrations of its rotation.
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