Capsule
DonateLog inCreate account
Menu

Navigation

  • Main page
  • Capsules
  • Learning
  • Mapping
  • Rankings
  • Organizations
  • Create
  • Forums
  • Research

Interaction

  • Messages
  • Verify
  • Help
  • About Capsule

Display

Appearance

Environment

EnvironmentsDefault
Capsule
Log in

Navigation

  • Main page
  • Capsules
  • Learning
  • Mapping
  • Rankings
  • Organizations
  • Create
  • Forums
  • Research

Interaction

  • Messages
  • Verify
  • Feedback
  • Help
  • About Capsule

Truth Classification

  • Fact
  • Theory
  • Hypothesis
  • Proven
  • Contested
  • Debunked
How classification works

Capsule of the Day

DebunkedThe PolygraphThe instrument popularly called a lie detector, which records breathing, blood pressure, pulse and skin conductance dur…

New in the Library

  • FactTardigrade
  • FactMonarch Butterfly
  • FactSpider

Capsule

© 2026 Solis Holdings Group Inc. All rights reserved.

Built by Solis Dev, a technology studio operating under Solis Holdings Group Inc.

  • Policy
  • Terms of Use
  • Methodology
  • Corrections
  • Non-partisanship
  • Transparency
  • Developers
  • About
  • Discord
  • Sitemap

Capsule, the capsule-pill mark, and the clock logo are trademarks of Solis Holdings Group Inc. All content, source code, and design assets are the exclusive property of Solis Holdings Group Inc., unless otherwise noted. Unauthorized reproduction is prohibited.

The library

Capsules

1,028 capsules, each one classified by the strength of its evidence.

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered byFactClear all

Results

Showing 181 to 200 of 599

NewestMost votedA to Z
Fact

Bacteria

Single-celled organisms without a nucleus, present in essentially every environment on Earth, and vastly outnumbering all other forms of life. A…

byCapsule
0 votes0 reviews
Aug 5, 2026
Fact

Journalism

The gathering, verification and publication of information about current events. It is defined less by its subject than by its method, and the…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Quarantine

The separation and restriction of movement of people who may have been exposed to a contagious disease, to see whether they become ill. It is among…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

The Water Cycle

The continuous movement of water between ocean, atmosphere, land and living things. The quantity is fixed; what changes is where it is and in what…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

El Nino and La Nina

A recurring shift in ocean temperature and atmospheric pressure across the tropical Pacific that alters weather across much of the world. It is the…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

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…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Proteins

The molecules that carry out most of the work in a cell. They are built from a common set of twenty amino acids, and what each one does is determined…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Extremophiles

Organisms that live in conditions that would destroy most life. They are mostly microorganisms, they have substantially widened the definition of a…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Dendrochronology

Dating events and objects by counting and matching the annual growth rings of trees. It is the most precise dating method available for the last…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Fingerprint Identification

The use of friction ridge patterns on the fingers to identify individuals. It was the first widely adopted scientific identification method, it…

byCapsule0 votes0 reviewsAug 5, 2026
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 reviewsAug 5, 2026
Fact

Concrete

A composite of cement, water, sand and stone that begins as a liquid and hardens into artificial rock. It is the most used manufactured material on…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Cinema

The art and industry of moving pictures. It rests on a property of perception, was invented within a few years in several countries at once, and…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Skyscraper

A very tall multi-storey building, made possible in the late nineteenth century by two technologies arriving together: the steel frame and the safe…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Literacy

The ability to read and write. It is a comparatively recent condition for most of humanity, it was achieved unevenly and rapidly, and it changes the…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Vitamins

Organic compounds required in small amounts that the body cannot make for itself, or cannot make in sufficient quantity. Each was discovered through…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Biodiversity

The variety of life, measured at the level of genes, species and ecosystems. It is unevenly distributed, incompletely catalogued, and declining at a…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Chromosomes

The structures into which the DNA of a cell is packaged. They are how an organism's genetic material is organised, divided accurately between…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

The Immune System

The set of cells, tissues and molecules that defends the body against infection. It operates in two connected layers: a fast general response, and a…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

The Neuron

The cell type that carries and processes signals in the nervous system. Neurons are electrically excitable, connect to one another at junctions…

byCapsule0 votes0 reviewsAug 5, 2026
Previous1…89101112…30Next