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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
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Results

Showing 1 to 3 of 3

NewestMost votedA to Z
Fact

Money

Anything generally accepted in exchange for goods and services. It is defined by what it does rather than by what it is made of, and almost every…

byCapsule
0 votes0 reviews
Aug 5, 2026
Theory· Scientific

Comparative Advantage

Comparative advantage is one of the foundational theories of economics. It explains why two parties, whether individuals, businesses, or whole…

byCapsule0 votes0 reviewsJun 20, 2026
Fact· Historical

The Silk Road

The Silk Road was a vast network of trade routes that connected China with Central Asia, the Middle East, and Europe for many centuries. More than a…

byCapsule0 votes0 reviewsJun 11, 2026