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Synopsis: Space Tests of the Equivalence Principle

The MICROSCOPE satellite mission has tested the equivalence principle with unprecedented precision, showing no deviations from the predictions of general relativity. [Physics] Published Mon Dec 04, 2017

Engineering electron pathways in 2-D topological insulators

In a recent article published in Physical Review Letters a research collaborative has reported new insights into the electronic conduction and interference on 2-D topological insulators—an exotic kind of insulator that conducts only at the edge and that could be key for the development of a new generation of electronic devices.

Focus: Dice Become Ordered When Stirred, Not Shaken

Author(s): Mark Buchanan A jumble of thousands of cubic dice, agitated by an oscillating rotation, can rapidly become completely ordered, a result that is hard to produce with more conventional shaking. [Physics 10, 130] Published Fri Dec 01, 2017

A day in the life

The Physics of Everyday Things explores how your favourite science crops up in everything from toasters to aeroplanes, as Achintya Rao discovers

Physics Week in Review: December 2, 2017

This week's physics highlights: does hot water really freeze faster than cold, and could cold water heat up faster than hot; scientists reverse the arrow of time; and a new quantum simulator holds experimental promise. When Cold Warms Faster Than...

Scientific Controversy No. 13

I made the mistake yesterday evening of spending it out in Red Hook, at an event billed as addressing the scientific controversy over string theory. The venue was an arts space called Pioneer Works, the brain-child of artist Dustin Yellin … Continue reading ?

Gravitational effect reveals earthquake magnitude

Secondary waves induced ahead of the primary wavefront carry additional information

Theorists identify stable tetraquark

Particle with two bottom quarks could be seen at CERN

Rising stars: Sadie Witkowski and Michael Graw

Interview with early-career scientists in psychology and oceanography

When cold warms faster than hot

Jennifer Ouellette explores the controversially counterintuitive phenomenon of hot water freezing faster than cold – and why some scientists think a reverse effect may even occur too

The Geometry Door

Now that #thedialoguesbook is out is I get even more people telling me how they can’t draw. I don’t believe them. Just as with science (and other subjects), everybody has a doorway in to a subject. It is just a matter of taking time to finding your individual Door. Individual … Click to continue reading this post ? The post The Geometry Door appeared first on Asymptotia.

Secret Link Uncovered Between Pure Math and Physics

There’s a very intriguing new article out today by Kevin Hartnett at Quanta magazine, entitled Secret Link Uncovered Between Pure Math and Physics (also a video here). It’s about ideas relating number theory and physics from arithmetic geometer Minhyong Kim. … Continue reading ?

Make Units Work for You

How do we use units? You may see one of these speed limit signs, nearly every day. Even though neither of them display units, drivers know they are implied. In the United States, a Speed Limit 25 sign implies that 25 miles per hour is the maximum legal speed. The other type of speed limit […]

How to produce the purest argon ever

CERN is taking part in a project, called ARIA, for the construction of a 350-metre-tall distillation tower that will be used to purify liquid argon (LAr) for scientific and, in a second phase, medical use.

Qubits put into reverse

A group of scientists at the Niels Bohr Institute (NBI), University of Copenhagen, has figured out how to make spin qubits perform controlled backward rotations. This has never been shown before – and the journal Physical Review Letters, where the research has just been published, highlights the innovative discovery in the category "Editor's Suggestion."

Theoretical analysis uncovers new mechanisms in plasma turbulence

Plasmas, gas-like collections of ions and electrons, make up an estimated 99 percent of the visible matter in the universe, including the sun, the stars, and the gaseous medium that permeates the space in between. Most of these plasmas,...Show More Summary

Experiment shows that arrow of time is a relative concept, not an absolute one

(Phys.org)—An international team of researchers has conducted an experiment that shows that the arrow of time is a relative concept, not an absolute one. In a paper uploaded to the arXiv server, the team describe their experiment and its outcome, and also explain why their findings do not violate the second law of thermodynamics.

Cuprate materials have fluctuating stripes that may be linked to high-temperature superconductivity

Scientists at the Department of Energy's SLAC National Accelerator Laboratory and Stanford University have shown that copper-based superconductors, or cuprates – the first class of materials found to carry electricity with no loss at relatively high temperatures – contain fluctuating stripes of electron charge and spin that meander like rivulets over rough ground.

Secure information transmission over 500m fiber links based on quantum technologies

Quantum secret communication realizes secure information transmission-based on quantum principles. At present, the most developed quantum secret communication schemes are-based on quantum key distribution. In these schemes, the quantum...Show More Summary

This month in Fermilab history: December

In Decembers the laboratory recognized the importance of its future site, the prairie and its buildings.

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