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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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  • FactTardigrade
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The library

Capsules

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

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered byProvenquantumClear all

Results

Showing 1 to 3 of 3

NewestMost votedA to Z
Proven

The Double-Slit Experiment

Send particles one at a time through two narrow openings and they build up a pattern that only waves can produce. Watch which opening each one goes…

byCapsule
0 votes0 reviews
Aug 3, 2026
Proven

Quantum Tunnelling

A particle can pass through a barrier it does not have enough energy to climb. This has no classical analogue, it is measured routinely, and it is…

byCapsule0 votes0 reviewsAug 3, 2026
Proven

Quantum Entanglement

Two particles can be prepared in a joint state where neither has a definite property of its own, and measuring one immediately fixes the…

byCapsule0 votes0 reviewsAug 3, 2026