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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 byanatomyClear all

Results

Showing 1 to 7 of 7

NewestMost votedA to Z
neuroscience
Fact

The Cerebral Cortex

The outer layer of the cerebrum, a sheet of neurons a few millimetres thick folded to fit inside the skull. It performs the processing associated…

byCapsule
0 votes0 reviews
medicine
Fact

The Lungs

The organs that bring air into contact with blood so that oxygen can enter and carbon dioxide can leave. They achieve this across a surface roughly…

byCapsule0 votes0 reviews
medicine
Fact

The Liver

The largest internal organ and the most chemically versatile, performing several hundred distinct functions. It is the only human internal organ that…

byCapsule0 votes0 reviews
biology
Fact· Empirical

The Human Skeleton

The human skeleton is the internal framework of bones that supports the body, protects its organs, and allows it to move. An adult skeleton has 206…

byCapsule0 votes0 reviews
biology
Fact· Empirical

The Human Eye

The human eye is the organ of sight, a remarkable structure that turns light into the images we see. Roughly the size of a ping pong ball, it…

byCapsule0 votes0 reviews
biology
Fact· Empirical

The Human Brain

The human brain is the command centre of the body and the most complex object known in the universe. Weighing only about 1.4 kilograms, it contains…

byCapsule0 votes0 reviews
biology
Fact· Empirical

The Human Heart

The human heart is a muscular pump, roughly the size of a clenched fist, that drives blood through the body every moment of life. Beating around…

byCapsule0 votes0 reviews