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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 byperuClear all

Results

Showing 1 to 2 of 2

NewestMost votedA to Z
Fact· Empirical

Peru

Peru is a country on the western coast of South America, a land of striking extremes: a dry Pacific coastline, the high peaks of the Andes, and a…

byCapsule
0 votes0 reviews
Jun 17, 2026
Fact· Empirical

Machu Picchu

Machu Picchu is a fifteenth-century Inca citadel perched high on a mountain ridge in the Andes of Peru, around 2,400 metres above sea level. Famous…

byCapsule0 votes0 reviewsMar 24, 2026