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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 byDebunkedneuroscienceClear all

Results

Showing 1 to 3 of 3

NewestMost votedA to Z
Debunked

The Ten Percent of the Brain Myth

The claim that human beings use only about ten per cent of their brains, and that the remainder is untapped potential. Every method of examining the…

byCapsule
0 votes0 reviews
Aug 4, 2026
Debunked

The Left-Brain, Right-Brain Myth

The idea that people are left-brained and therefore logical, or right-brained and therefore creative, is one of the most widely believed claims about…

byCapsule0 votes0 reviewsAug 3, 2026
Debunked

Phrenology

Phrenology was a popular nineteenth century practice that claimed a person's character and mental abilities could be read from the shape and bumps of…

byCapsule0 votes0 reviewsApr 22, 2026