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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 5 of 5

NewestMost votedA to Z
Fact

Urban Parks

Public open green space within a city, maintained for recreation and amenity. They were created deliberately as a response to industrial urban…

byCapsule
0 votes0 reviews
Aug 5, 2026
Fact

Urbanisation

The shift of a population from rural to urban living. More than half the world's people now live in cities, a threshold crossed around 2007, and the…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Public Transport

Shared passenger transport available to the general public on fixed routes and schedules. Its economics differ fundamentally from private transport,…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Zoning

The regulation of what may be built where, by dividing a city into districts with different permitted uses and building limits. It is the primary…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Skyscraper

A very tall multi-storey building, made possible in the late nineteenth century by two technologies arriving together: the steel frame and the safe…

byCapsule0 votes0 reviewsAug 5, 2026