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Humans

Holiday brain-off round 2: Test your reaction time

Who in your family has the sharpest reflexes? To find out, all you need is a ruler and this table of numbers

Features

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Technology

Old Scientist: How to get drunk rationally

Regulars

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Earth

Animal magnetism: Why dogs do their business pointing north

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origami

Technology

Fold your own universe with our cosmic origami decoration

Features

Quantum computers ditch all the lasers for easier engineering

Technology

Quantum computers ditch all the lasers for easier engineering

News

Quantum photocells, which look like an arrangement of grey squares on a darker background

Life

Quantum solar cells could explain why plants are green

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Physics

Physics may be a small but crucial fraction of our reality

Culture

universe

Physics

The world in 2076: The theory of everything is here – we think

Features

Visualisation of electron leaving atom

Physics

Smallest sliver of time yet measured sees electrons fleeing atom

News

A black hole swallowing a star

Space

Reality guide: Six problems physics can't explain

From the dark energy ripping the cosmos apart to the part consciousness plays in creating reality, quantum physics and cosmology retain many mysteries

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Space

Reality guide: The essential laws of quantum physics

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Space

Reality guide: Six radical ideas to change physics

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Physics

Quantum teleportation over 7 kilometres of cables smashes record

News

Physics

Five particles that don't exist – yet could change our world

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