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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 bymedia-studiesClear all

Results

Showing 1 to 6 of 6

NewestMost votedA to Z
Fact

The Telegraph

Communication by coded electrical signal over wires. It was the first technology to separate the speed of a message from the speed of travel, and…

byCapsule
0 votes0 reviews
Aug 5, 2026
Fact

Radio

Communication using electromagnetic waves without a conductor between sender and receiver. It was the first medium to reach a mass audience…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Censorship

The suppression of speech, writing or images by an authority. It is as old as writing, its methods have changed with each communication technology,…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Advertising

Paid communication intended to promote a product, service or idea. It funds most commercial media, its measured effects are smaller than its cultural…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Propaganda

Communication designed to shape opinion and behaviour in the interest of the party producing it, rather than to inform. It is defined by purpose and…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Journalism

The gathering, verification and publication of information about current events. It is defined less by its subject than by its method, and the…

byCapsule0 votes0 reviewsAug 5, 2026