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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 byperceptionClear all

Results

Showing 1 to 9 of 9

NewestMost votedA to Z
film
Fact

Film Editing

The selection and arrangement of shots into a finished film. It is the operation that distinguishes film from recorded theatre, and the conventions…

byCapsule
0 votes0 reviews
psychology
Fact

Attention

The selection of some information for processing at the expense of the rest. It exists because the senses deliver far more than the brain can handle,…

byCapsule0 votes0 reviews
geology
Debunked

Dowsing

The practice of locating underground water, minerals or other targets by walking over ground holding a forked stick or a pair of rods and watching…

byCapsule0 votes0 reviews
psychology
Debunked

Subliminal Advertising

The claim that messages flashed too briefly to be consciously seen can compel people to buy things. It rests on a single 1957 demonstration that its…

byCapsule0 votes0 reviews
psychology
Theory

Signal Detection Theory

The framework that separates how well an observer can distinguish signal from noise from how willing that observer is to say the signal is present.…

byCapsule0 votes0 reviews
neuroscience
Proven

Colour Vision

Colour is not a property of light. It is what the visual system computes from the responses of three receptor types, and the computation is what…

byCapsule0 votes0 reviews
neuroscience
Proven

The McGurk Effect

Watch a face saying one syllable while hearing another, and you perceive a third that was never present in either. Speech perception turns out to be…

byCapsule0 votes0 reviews
film
Proven

The Kuleshov Effect

Two shots placed next to each other produce a meaning that neither contains. Lev Kuleshov demonstrated it around 1918, and it is the reason film…

byCapsule0 votes0 reviews
music
Contested

Absolute Pitch

Absolute pitch, commonly called perfect pitch, is the ability to identify or produce a musical note without a reference tone. It is rare, it is real,…

byCapsule0 votes0 reviews