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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 byFactmathematicsClear all

Results

Showing 1 to 9 of 9

NewestMost votedA to Z
statistics
Fact

Probability

The mathematics of uncertainty. It assigns numbers between zero and one to events, and its rules are simple enough to state on a page and produce…

byCapsule
0 votes0 reviews
philosophy
Fact

Logic

The study of valid inference: which conclusions follow from which premises, and why. It is the shared foundation of philosophy, mathematics and…

byCapsule0 votes0 reviews
education
Fact

Numeracy

The ability to understand and work with numbers in practical situations. It is distinct from mathematical education, it is measured internationally,…

byCapsule0 votes0 reviews
statistics
Fact

The Normal Distribution

The symmetric bell-shaped probability distribution that arises whenever many small independent influences add together. It is the most important…

byCapsule0 votes0 reviews
mathematics
Fact

Calculus

The mathematics of continuous change, comprising the differential calculus of rates and the integral calculus of accumulation, and the theorem…

byCapsule0 votes0 reviews
mathematics
Fact

Zero

The number representing nothing, and the symbol that makes positional notation possible. It arrived late, was resisted, and is the single most…

byCapsule0 votes0 reviews
mathematics
Fact· Historical

Alan Turing

Alan Turing (1912 to 1954) was a British mathematician and logician widely regarded as the father of computer science and artificial intelligence.…

byCapsule0 votes0 reviews
mathematics
Fact· Historical

Ada Lovelace

Ada Lovelace (1815 to 1852) was an English mathematician often celebrated as the first computer programmer. Working with Charles Babbage's designs…

byCapsule0 votes0 reviews
biography
Fact· Historical

Katherine Johnson

Katherine Johnson was an American mathematician whose precise calculations of orbital mechanics were critical to the success of the United States'…

byCapsule0 votes0 reviews