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quantum weirdness

Physics

Cosmic uncertainty: Could quantum weirdness be even weirder?

Quantum entanglement specifies a very exact level of weird correlation between stuff. Any more or any less, and it would have some still stranger consequences

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clock

Physics

Cosmic uncertainty: Does time go both ways?

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symmetry artwork

Physics

Magnets, boiling kettles and the secret code underlying reality

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Computer image of a cat

Technology

AI learns to solve quantum state of many particles at once

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face artwork

Physics

Essence of reality: Hunting the universe's most basic ingredient

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Analogue alarm clock

Physics

One time or another: Our best 5 theories of the fourth dimension

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Mary Jackson

Space

When computers were human: The black women behind NASA’s success

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Katherine Johnson

Space

Katherine Johnson: The brilliant woman who got the US into space

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multiverse artwork

Physics

Mapping the multiverse: How far away is your parallel self?

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microscopic metal membrane

Technology

Squeezed light cools tiny drum to coldest temperature ever

A special trick with lasers helped lower a nano-sized membrane to below the "quantum limit" – colder than was thought possible

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Humans

Holiday brain-off round 3: Build the Tower of Hanoi

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Humans

Holiday brain-off round 1: Challenge your original thinking

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Health

Hangovers: What science says about why you feel so rough

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Life

Reindeer riddle: How do you tell caribou apart?

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