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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
Filtered bymusicClear all

Results

Showing 1 to 15 of 15

NewestMost votedA to Z
Fact

Harmony

The combination of simultaneous pitches, and the system governing which combinations are used and how they follow one another. It is the organising…

byCapsule
0 votes0 reviews
Aug 5, 2026
Fact

The Orchestra

A large ensemble of instrumentalists, organised into sections and directed by a conductor. Its composition was not designed but accumulated, and it…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Musical Instruments

Objects made or adapted to produce musical sound. They are among the oldest artefacts of human culture, and the ways they are classified reveal how…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Musical Notation

Systems for writing down music so that it can be preserved and performed by people who never heard it. Notation determines what a musical culture can…

byCapsule0 votes0 reviewsAug 5, 2026
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 reviewsAug 3, 2026
Debunked

The Mozart Effect

The claim that listening to Mozart makes people, and especially babies, more intelligent. It came from one small study whose actual finding was far…

byCapsule0 votes0 reviewsAug 3, 2026
Theory

Equal Temperament

Every note on a modern piano is slightly out of tune, deliberately and by a known amount. Equal temperament divides the octave into twelve identical…

byCapsule0 votes0 reviewsAug 3, 2026
Fact· Historical

Bob Marley

Bob Marley (1945 to 1981) was a Jamaican singer and songwriter who became the most famous figure in reggae music and a global symbol of peace, unity,…

byCapsule0 votes0 reviewsJun 12, 2026
Fact· Historical

Freddie Mercury

Freddie Mercury (1946 to 1991) was a British singer and songwriter, the lead vocalist of the rock band Queen. Famed for his extraordinary voice and…

byCapsule0 votes0 reviewsJun 12, 2026
Fact· Historical

Michael Jackson

Michael Jackson (1958 to 2009) was an American singer, dancer, and songwriter known as the "King of Pop." One of the best selling and most…

byCapsule0 votes0 reviewsJun 12, 2026
Fact· Historical

Ludwig van Beethoven

Ludwig van Beethoven (1770 to 1827) was a German composer and pianist, one of the most admired figures in the history of Western music. He bridged…

byCapsule0 votes0 reviewsJun 12, 2026
Fact· Historical

Wolfgang Amadeus Mozart

Wolfgang Amadeus Mozart (1756 to 1791) was an Austrian composer regarded as one of the greatest musical geniuses in history. A child prodigy who…

byCapsule0 votes0 reviewsJun 12, 2026
Fact· Historical

The Violin

The violin is a wooden string instrument played with a bow, the highest pitched member of the violin family. Prized for its expressive, singing tone,…

byCapsule0 votes0 reviewsJun 11, 2026
Fact· Historical

Kanye West

Kanye West, who legally changed his name to Ye in 2021, is an American rapper, record producer, and fashion designer, and one of the most influential…

byCapsule0 votes0 reviewsApr 5, 2026
Fact· Historical

Jay-Z

Jay-Z, born Shawn Corey Carter in 1969, is an American rapper and businessman widely regarded as one of the greatest and most commercially successful…

byCapsule0 votes0 reviewsApr 3, 2026