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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 byFactaviationClear all

Results

Showing 1 to 4 of 4

NewestMost votedA to Z
climate science
Fact

The Jet Stream

Narrow bands of fast wind near the top of the troposphere, flowing generally west to east. They steer weather systems across the middle latitudes and…

byCapsule
0 votes0 reviews
astronomy
Fact· Historical

Neil Armstrong

Neil Armstrong (1930 to 2012) was an American astronaut and the first human being to set foot on the Moon. His step onto the lunar surface in 1969…

byCapsule0 votes0 reviews
history
Fact· Historical

Amelia Earhart

Amelia Earhart (1897 to disappeared 1937) was an American aviation pioneer and the first woman to fly solo across the Atlantic Ocean. A daring record…

byCapsule0 votes0 reviews
engineering
Fact· Historical

The Wright Brothers' First Flight

On 17 December 1903, near Kitty Hawk, North Carolina, the brothers Orville and Wilbur Wright achieved the first sustained, controlled flight of a…

byCapsule0 votes0 reviews