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New Scientist - Physics
New Scientist - Physics
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Physicists have worked out how to pour water as quietly as possible
The sound of pouring water into a cup can be tamped down by changing the height of the pour or the diameter of the spout, but physicists have found that changing just one of these never makes it fully silent
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The wonder particle: How axions could solve more than just dark matter
Physicists are coming to realise that hypothetical particles called axions could explain not only dark matter, but dark energy too, and more besides. Now there is fresh impetus to detect them
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Physicists find ultimate limit for how accurate clocks can be
A fundamental trade-off between the resolution of a clock and its accuracy could have important implications for quantum computers, which must measure short timescales accurately
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A mysterious, incredibly energetic cosmic ray has smashed into Earth
A cosmic ray dubbed Amaterasu is the second most powerful one we have ever seen, beaten only by the "Oh-My-God particle". Both have baffled astronomers and defy explanation
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Lasers fired at crystals could uncover quantum nature of the vacuum
Ultra-short laser pulses may allow us to measure entanglement in a way that answers questions about the quantum nature of the vacuum
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Tiny lasers can be made from soap bubbles
Shining light on bubbles made from soapy water mixed with a fluorescent dye turns them into tiny lasers that can work as pressure sensors
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Ultracold atoms in space will let us stress test Einstein's relativity
Potassium and rubidium atoms aboard the International Space Station have been cooled almost to absolute zero to put a fundamental principle of Einstein’s general theory of relativity to the ultimate test
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First practical use for nuclear fusion could help cancer treatment
Fusion reactors could be used to produce radioactive isotopes for hospitals way before they become useful power generators
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Why the quantum universe is weirder than you think
The quantum realm is full of strange effects, but there’s a reason why everything looks normal from our point of view, writes physicist Sebastian Deffner
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Physicists have invented a new way to shake a martini
Shaking a martini glass back and forth creates an intricate vortex pattern in the cocktail that takes on a different shape depending on the physical properties of the drink