Donate Log in Create account

Menu

Navigation

Main page
Capsules
Learning
Mapping
Rankings
Organizations
Create
Forums
Research

Interaction

Messages
Verify
Help
About Capsule

Display

Appearance

Environment

EnvironmentsDefault

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.

All1,028 Fact599 Proven130 Theory89 Hypothesis71 Contested90 Debunked48

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

Filtered byphysics Clear all

Results

Showing 21 to 40 of 67

Newest Most voted A to Z

Neutrino Oscillation

Neutrinos change identity as they travel, converting between three types. The discovery resolved a thirty-year discrepancy in measurements of the Sun…

0 votes0 reviews

The Michelson-Morley Experiment

In 1887 two men in a basement in Cleveland tried to measure the Earth's motion through the medium light was assumed to travel in. They found nothing.…

byCapsule0 votes0 reviews

Proven· Replicated

Ohm's Law

Ohm's law is the basic rule governing electric circuits. It states that the current flowing through a conductor is directly proportional to the…

byCapsule0 votes0 reviews

Proven· Replicated

Conservation of Momentum

Conservation of momentum is one of the most fundamental and reliable laws in all of physics. Momentum, the product of an object's mass and its…

byCapsule0 votes0 reviews

Theory· Scientific

The Standard Model of Particle Physics

The Standard Model is the theory that describes all the known elementary particles of matter and the forces that act between them, except for…

byCapsule0 votes0 reviews

Proven· Replicated

The Equivalence of Mass and Energy

Mass and energy are two forms of the same thing. This is the meaning of the most famous equation in science, which states that the energy contained…

byCapsule0 votes0 reviews

Is Time Travel Possible?

Time travel, journeying into the past or the future, is a staple of science fiction, but is it actually possible? The surprising answer from physics…

byCapsule0 votes0 reviews

Fact· Historical

The Large Hadron Collider

The Large Hadron Collider, or LHC, is the world's largest and most powerful particle accelerator, built by the European laboratory CERN near Geneva.…

byCapsule0 votes0 reviews

Fact· Empirical

Quantum Computing

Quantum computing is a new kind of computing that harnesses the strange rules of quantum mechanics to process information in ways ordinary computers…

byCapsule0 votes0 reviews

Ball Lightning

Ball lightning is a reported phenomenon in which a glowing, floating sphere of light appears, usually during thunderstorms. Many people claim to have…

byCapsule0 votes0 reviews

The Nature of Time

Time is one of the most familiar parts of our experience, yet what it really is remains one of the deepest and most contested questions in physics…

byCapsule0 votes0 reviews

Fact· Historical

Isaac Newton

Isaac Newton (1642 to 1727) was an English mathematician and physicist, widely regarded as one of the greatest scientists who ever lived. His…

byCapsule0 votes0 reviews

Proven· Replicated

Radioactive Decay

Radioactive decay is the process by which unstable atomic nuclei spontaneously break down, releasing energy and particles and transforming into other…

byCapsule0 votes0 reviews

Proven· Replicated

Superconductivity

Superconductivity is a remarkable state in which certain materials, when cooled below a critical temperature, conduct electricity with absolutely no…

byCapsule0 votes0 reviews

Proven· Replicated

The Higgs Boson

The Higgs boson is a fundamental particle whose discovery in 2012 confirmed how other particles acquire mass. Long predicted but famously hard to…

byCapsule0 votes0 reviews

Proven· Replicated

The Neutrino

The neutrino is a tiny, almost massless subatomic particle that barely interacts with anything, streaming through matter, and through us, in…

byCapsule0 votes0 reviews

Proven· Replicated

Brownian Motion

Brownian motion is the random, jittery movement of tiny particles suspended in a fluid, caused by their constant bombardment by the fluid's…

byCapsule0 votes0 reviews

Proven· Replicated

The Photoelectric Effect

The photoelectric effect is the release of electrons from a material when light shines on it. Simple to observe yet impossible to explain with older…

byCapsule0 votes0 reviews

Grand Unified Theory

A Grand Unified Theory is a hypothesized framework that would merge three of the fundamental forces of nature, the electromagnetic, weak, and strong…

byCapsule0 votes0 reviews

The Kinetic Theory of Gases

The kinetic theory of gases explains the behaviour of gases as the result of countless tiny particles, atoms and molecules, in constant, rapid,…

byCapsule0 votes0 reviews

Previous1 2 3 4Next