HowItActuallyWorks

Everyday mechanisms, explained with sources. One diagram, one myth checked, every week. Wrong? We correct it publicly.

Columns

• One Mechanism, One Diagram — One everyday mechanism, explained with one self-made diagram.
• MythCheck — A common claim, checked against evidence, with a clear verdict.
• Monthly Curiosity Archive — A monthly index of that month's posts, with a short review.

Pinned Manifesto Thread

• Manifesto
• How to read this account, and how corrections work
• The three columns
• What mechanism have you always wanted explained?

Sources — Tidal Locking: Why the Moon Always Shows the Same Face

Post: Tidal Locking thread, post 1 (with diagram) · post 2

• NASA Science — Tidal Locking: supports that the Moon spins once in the same time it takes to orbit Earth, so the same side always faces us.
• Astronomy — Why does the same side of the Moon always face Earth?: supports that Earth's gravity acting on the Moon's tidal bulges produced torque that slowed the Moon's spin until rotation matched revolution.

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Correction format: Correction: original post date, original claim, what was wrong, corrected claim, and source. Original posts are not deleted for corrections; the correction is posted publicly and linked.