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WHY is there a cosmic speed limit?

Physics

Why is there a cosmic speed limit? It could even be why we're here

Nothing in the cosmos can travel faster than light speed. By distinguishing cause and effect and stopping everything happening in a jumbled mess, our existence depends on it

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Albert Einstein

Space

Lost in Space-Time newsletter: Will a twisted universe save cosmology?

News

The quantum experiment that could prove reality doesn't exist

Physics

The quantum experiment that could prove reality doesn't exist

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MicroBooNE

Physics

Physicists fail to find mysterious 'sterile neutrino' particles

News

Stephon Alexander interview: Is the universe a self-learning AI?

Physics

Stephon Alexander interview: Is the universe a self-learning AI?

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Coloured transmission electron micrograph (TEM) of chloroplasts from the yellow portion of a yellow/green variegated Coleus blumei plant. Chloroplasts are the sites of photosynthesis, the process that synthesises carbohydrates from carbon dioxide and water using sunlight. The structure of a variegated chloroplast is slightly different from that of a normal green chloroplast. The granal stacks, formed from parallel thylakoids (membranes, bright lines), that contain the chlorophyll pigments are less ordered in the variegated chloroplast. The pigments themselves are also slightly different. Magnification: x14,300 when printed at 10cm wide.

Physics

From photosynthesis to navigation, life may exploit quantum effects

Features

Is quantum theory really as random as it seems?

Physics

Is quantum theory really as random as it seems?

Features

Quantum Physics. Atom nuclear model on energetic background, 3D illustration; Shutterstock ID 682727230; purchase_order: PHOTO; job: 25 August online; client: NS; other:

Physics

Beyond quantum physics: The search for a more fundamental theory

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Why it might be impossible to build a practical quantum computer

Physics

Why it might be impossible to build a practical quantum computer

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What putting big things in quantum states can tell us about reality

Physics

What putting big things in quantum states can tell us about reality

In principle, there should be no limit on how large objects can get and still display quantum behaviour like superpositions. Physicists testing the idea hope to reveal clues about quantum gravity

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Physics

Can quantum effects in the brain explain consciousness?

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Physics

Why is it so difficult to find a viable quantum theory of gravity?

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Physics

Quantum Darwinism: Can evolutionary theory explain objective reality?

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Physics

Do we distil reality from the quantum fog or does it exist without us?

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