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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 byphysicsprovenClear all

Results

Showing 1 to 14 of 14

NewestMost votedA to Z
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…

byCapsule
0 votes0 reviews
Jun 22, 2026
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 reviewsJun 20, 2026
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 reviewsJun 19, 2026
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 reviewsJun 12, 2026
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 reviewsJun 12, 2026
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 reviewsJun 12, 2026
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 reviewsJun 12, 2026
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 reviewsJun 12, 2026
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 reviewsJun 12, 2026
Proven· Replicated

The Coriolis Effect

The Coriolis effect is the apparent deflection of moving objects, such as air and water, when viewed from a rotating frame like the spinning Earth.…

byCapsule0 votes0 reviewsJun 11, 2026
Proven· Replicated

The Doppler Effect

The Doppler effect is the change in the observed frequency of a wave when its source and the observer move relative to each other. It is why the…

byCapsule0 votes0 reviewsJun 11, 2026
Proven· Replicated

Newton's Laws of Motion

Newton's laws of motion are three principles, set out by Isaac Newton in 1687, that describe how objects move under the action of forces. For more…

byCapsule0 votes0 reviewsJun 11, 2026
Proven· Replicated

Conservation of Energy

The law of conservation of energy states that energy cannot be created or destroyed, only changed from one form into another. The total amount of…

byCapsule0 votes0 reviewsFeb 22, 2026
Proven· Replicated

The Speed of Light

The speed of light in a vacuum is a fixed, fundamental constant of nature, equal to about 299,792 kilometres per second. It is the fastest speed at…

byCapsule0 votes0 reviewsFeb 7, 2026