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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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The library

Capsules

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

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered bymaterialsClear all

Results

Showing 1 to 4 of 4

NewestMost votedA to Z
Fact

Sculpture

Three-dimensional art, made by removing material, adding it, or casting it. The method used constrains what can be made, and much of what…

byCapsule
0 votes0 reviews
Aug 5, 2026
Fact

Mining

Extracting minerals from the ground. Every manufactured object contains material that was mined, the industry has been transformed by scale and…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Carbon

The element that forms the backbone of all known life, occurs as both the hardest common substance and one of the softest, and forms more compounds…

byCapsule0 votes0 reviewsAug 5, 2026
Theory

BCS Theory

The microscopic explanation of superconductivity in conventional superconductors, published by John Bardeen, Leon Cooper and John Robert Schrieffer…

byCapsule0 votes0 reviewsAug 4, 2026