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Physics

Quantum device detects all units of electricity at once

Defining the fundamental units of electricity used to require two finicky quantum devices – but now scientists have found an easier way to standardise our electrical measurements

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Technology

It is impossible to build a practical quantum broadcaster

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Physics

We have detected a single electron with unprecedented speed

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Physics

Extremely cold atoms defy entropy and refuse to heat up

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Physics

Why no one can agree on what quantum physics really means

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Physics

Molecule's tiny quantum jiggle imaged in unprecedented detail

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2H2KWEA Big Bang to Present. Stages in the history of the Universe after the Big Bang. At 300, 000 years, matter and radiation decouple, and the Universe becomes transparent for the first time. The first galaxies form at around 300 million years after the Big Bang, but the exact time period is uncertain. At an age of 9 billion years the Solar System formed. Finally, 13.7 billion years after the Big Bang we arrive at the present day. The Universe is still expanding and evolving.

Physics

What happens to light's energy when it redshifts? It's complicated

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Physics

Could we get quantum spookiness even without entanglement?

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Chaotic streams of energy appear to slice through space

Physics

Is gravity a new type of force that arises from cosmic entropy?

Features

Physics

We may be able to share quantum entanglement nearly infinitely

A pair of quantum experimenters that share two entangled particles may be able to pass some of that entanglement to other pairs – and keep sharing it again and again

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Physics

Laws of quantum physics may rule out a universe that came before ours

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Technology

Quantum-enhanced supercomputers are starting to do chemistry

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Technology

Quantum computers are surprisingly random – but that's a good thing

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Physics

How quantum superposition forces us to confront what is truly real

Features