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Truth Classification

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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.

All1,028 Fact599 Proven130 Theory89 Hypothesis71 Contested90 Debunked48

geography236 biology88 physics67 history54 medicine45 astronomy33 psychology26 mathematics26 chemistry20 engineering20 astrophysics19 neuroscience19 anthropology18 art18

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Showing 1 to 12 of 12

Newest Most voted A to Z

Salt

Sodium chloride. It is physiologically essential, it was the only reliable food preservative for most of history, and its scarcity relative to demand…

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Livestock

Domesticated animals kept for food, fibre, labour and other products. Livestock made agriculture viable on land that grows no crops, and they are now…

byCapsule0 votes0 reviews

Fishing

Catching aquatic animals for food. It is the last major food source still taken from the wild at scale, which is precisely why it is the one where…

byCapsule0 votes0 reviews

Refrigeration

Removing heat from a space to keep it below the surrounding temperature. It is the technology that changed what people eat more than any other, and…

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Bread

Baked dough of ground grain and water. It is among the oldest prepared foods, it supplies a substantial share of the world's calories, and its…

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Genetically Modified Crops

Plants whose genome has been altered using recombinant DNA techniques. They have been grown commercially since 1996, cover a substantial share of…

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Carbohydrates

A class of molecules made of carbon, hydrogen and oxygen, comprising sugars, starches and fibre. They are the main energy source in most human diets…

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Dietary Fibre

The parts of plant food that human digestive enzymes cannot break down. It supplies no energy directly and is one of the more consistently supported…

byCapsule0 votes0 reviews

Fungi

A kingdom of organisms distinct from plants and animals, which digest their food externally and absorb it. They decompose most of the world's dead…

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Fermentation

The extraction of energy from sugars without oxygen. It is one of the oldest biological processes, humans have exploited it for at least nine…

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Pasteurisation

Heating a liquid to a controlled temperature for a controlled time kills enough pathogens to make it safe without destroying it. It is among the most…

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The Green Revolution

Between the 1950s and the 1980s, new crop varieties and the inputs they required roughly tripled cereal production across much of Asia and Latin…

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