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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 byFactClear all

Results

Showing 581 to 599 of 599

NewestMost votedA to Z
physics
Fact· Empirical

The Atom

The atom is the basic building block of ordinary matter, the smallest unit of a chemical element that retains its properties. Everything you can see…

byCapsule
0 votes0 reviews
biology
Fact· Empirical

Kangaroo

Kangaroos are large marsupials of the family Macropodidae, endemic to Australia and New Guinea. They are the only large animals that hop as their…

byCapsule0 votes0 reviews
geography
Fact· Empirical

Mount Everest

Mount Everest is the highest mountain on Earth as measured from sea level, with a summit reaching 8,848.86 metres (29,031.7 feet) above sea level, a…

byCapsule0 votes0 reviews
geography
Fact· Empirical

Mount Kilimanjaro

Mount Kilimanjaro in Tanzania is the highest mountain in Africa and the tallest free-standing mountain in the world, rising about 5,895 metres above…

byCapsule0 votes0 reviews
geography
Fact· Empirical

Victoria Falls

Victoria Falls is one of the largest and most spectacular waterfalls on Earth, on the Zambezi River at the border between Zambia and Zimbabwe in…

byCapsule0 votes0 reviews
biology
Fact· Empirical

Penguin

Penguins are flightless seabirds of the southern hemisphere, around eighteen species, which gave up flight in the air for flight underwater. They are…

byCapsule0 votes0 reviews
biography
Fact· Historical

Nikola Tesla

Nikola Tesla was an inventor and electrical engineer best known for his pioneering contributions to the alternating current electrical system that…

byCapsule0 votes0 reviews
history
Fact· Empirical

Taj Mahal

The Taj Mahal is a white marble mausoleum in Agra, India, widely regarded as one of the most beautiful buildings in the world. Built in the…

byCapsule0 votes0 reviews
geography
Fact· Empirical

Antarctica

Antarctica is Earth's southernmost continent, a vast, frozen wilderness centred on the South Pole. It is the coldest, driest, windiest, and, on…

byCapsule0 votes0 reviews
biography
Fact· Historical

Albert Einstein

Albert Einstein was a German born theoretical physicist widely regarded as one of the greatest scientists of all time. Born in 1879 in Ulm, he…

byCapsule0 votes0 reviews
biography
Fact· Historical

Marie Curie

Marie Curie was a Polish born physicist and chemist who conducted pioneering research on radioactivity, a term she coined. Born Maria Skłodowska in…

byCapsule0 votes0 reviews
physics
Fact

Gravity

Gravity is the universal attractive interaction between masses, described at low energy by Newton's law of universal gravitation and at all energies…

byCapsule0 votes0 reviews
astronomy
Fact· Empirical

The Solar System

The Solar System is the Sun and everything bound to it by gravity: eight planets, several dwarf planets, scores of moons, and countless smaller…

byCapsule0 votes0 reviews
astronomy
Fact· Empirical

The Moon

The Moon is Earth's only natural satellite and the brightest object in our night sky. Large in proportion to its planet and close enough to study…

byCapsule0 votes0 reviews
geology
Fact· Empirical

Tsunami

A tsunami is a series of enormous ocean waves caused by the sudden displacement of a large volume of water, most often by an undersea earthquake.…

byCapsule0 votes0 reviews
geography
Fact· Empirical

Great Barrier Reef

The Great Barrier Reef is the world's largest coral reef system, stretching more than 2,300 kilometres along the north-east coast of Australia. So…

byCapsule0 votes0 reviews
biography
Fact· Historical

Elon Musk

Elon Musk is a businessman and engineer known for leading several of the most prominent technology companies of the era, including Tesla and SpaceX.…

byCapsule0 votes0 reviews
biography
Fact· Historical

Walt Disney

Walt Disney was an American animator, film producer, and entrepreneur who pioneered the animated film and built one of the world's most famous…

byCapsule0 votes0 reviews
physics
Fact· Empirical

Electricity

Electricity is the flow and presence of electric charge, one of the fundamental forces of nature and the power source of the modern world. From the…

byCapsule0 votes0 reviews
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