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FactApollo 11Apollo 11 was the spaceflight that first landed humans on the Moon. On July 20, 1969, the American astronauts Neil Arms…

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All Fact Theory Hypothesis

Proven Contested Debunked

The Hall Effect

Pass a current through a conductor in a magnetic field and a voltage appears across it, perpendicular to both. Discovered by a graduate student in…

byCapsule0 votes0 reviews8/3/2026

Geomagnetic Reversal

The Earth's magnetic field has flipped hundreds of times, north becoming south and back. The record of those reversals is frozen into the ocean…

byCapsule0 votes0 reviews8/3/2026