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Capsule of the Day

DebunkedThe PolygraphThe instrument popularly called a lie detector, which records breathing, blood pressure, pulse and skin conductance dur…

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  • FactTardigrade
  • FactMonarch Butterfly
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The library

Capsules

1,028 capsules, each one classified by the strength of its evidence.

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered byFactplate-tectonicsClear all

Results

Showing 1 to 2 of 2

NewestMost votedA to Z
geology
Fact· Empirical

Volcano

A volcano is an opening in a planet's crust through which molten rock, gas, and ash erupt from the hot interior to the surface. On Earth they are…

byCapsule
0 votes0 reviews
geology
Fact· Empirical

Earthquake

An earthquake is a sudden shaking of the ground caused by the release of energy deep within the Earth. Most are too faint to feel, but the largest…

byCapsule0 votes0 reviews