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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 bycommunicationClear all

Results

Showing 1 to 9 of 9

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

Computer Networks

Systems connecting computers so that they can exchange data. The design decisions taken in the 1960s and 1970s determined the shape of the internet,…

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

Translation

Rendering meaning from one language into another. It is never a mechanical substitution of words, because languages divide the world differently, 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
Debunked

Facilitated Communication

A technique in which an assistant supports the hand or arm of a non-speaking person while they type, said to reveal unsuspected literacy. Controlled…

byCapsule0 votes0 reviewsAug 4, 2026
Proven

Error-Correcting Codes

Adding structured redundancy to a message so that errors introduced in storage or transmission can be detected and repaired without asking for a…

byCapsule0 votes0 reviewsAug 3, 2026
Theory

The Medium Is the Message

Marshall McLuhan's claim that a communication technology's effects come from the technology itself rather than from what is transmitted through it.…

byCapsule0 votes0 reviewsAug 3, 2026