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Researchers beat the quantum limit of microwave measurements

Research groups at Aalto University and the University of Jyväskylä have demonstrated a new microwave measurement method that goes to the quantum limit of measurement and beats it. The new method can potentially be used for example in quantum computing and measurement of gravitational waves. Show More Summary

Producing crystals without defects for research

When it comes to creating new materials, single crystals play an important role in presenting a clearer picture of a material's intrinsic properties. A typical material will be comprised of lots of smaller crystals and the grain boundaries between these crystals can act as impediments, affecting properties such as electrical or thermal resistance.

Quantum shortcuts cannot bypass the laws of thermodynamics

(—Over the past several years, physicists have developed quantum shortcuts that speed up the operation of quantum systems. Surprisingly, some of these shortcuts theoretically appear to enable systems to operate nearly instantaneously while using no extra energy—a clear violation of the second law of thermodynamics. Show More Summary

A quantum boost for machine learning

Here's what happened when a Go grandmaster took on Google’s DeepMind

Interstate discomfort

Robert P Crease explains why trying to patent software is such a hard thing to do

Synopsis: Straying from the Norm in Pedestrian Movements

Experiments tracking people as they walk down a corridor reveal universal behaviors that, if incorporated into models, could ensure safe flow in large crowds. [Physics] Published Wed Mar 15, 2017

Physicist declassifies rescued nuclear test films

The U.S. conducted 210 atmospheric nuclear tests between 1945 and 1962, with multiple cameras capturing each event at around 2,400 frames per second. But in the decades since, around 10,000 of these films sat idle, scattered across the country in high-security vaults. Show More Summary

3-D X-ray imaging makes the finest details of a computer chip visible

Researchers of the Paul Scherrer Institute PSI have made detailed 3-D images of a commercially available computer chip. This marks the first time a non-destructive method has visualized the paths of a chip's internal wiring (just 45Show More Summary

Novel nozzle saves crystals—double flow concept widens spectrum for protein crystallography

Scientists are interested in the spatial structure of proteins to learn about the workings of these biomolecules. This knowledge can lead to a better understanding of the functions of biomolecules and to tailored medicines. X-ray crystallography is the prime tool to solve protein structures. Show More Summary

The strangeness of slow dynamics

In a recent article published in Physical Review Letters, researchers from the nanomagnetism group at nanoGUNE reported hitherto unknown anomalies near dynamic phase transitions (DPTs). Such anomalies do not exist in corresponding thermodynamic...Show More Summary

How photons change chemistry

The quantum nature of light usually does not play an important role when considering the chemical properties of atoms or molecules. In an article published in the Proceedings of the National Academy of Sciences scientists from the Max...Show More Summary

Fermilab holds first Ask-a-Scientist program in Spanish

Nearly 100 curious neighbors turned out for Fermilab's first Spanish-language Ask-a-Scientist event.

Early galaxies shunned dark matter

Study of galactic rotation 10 billion years ago suggests visible matter dominated

The Pantheon of Derivatives – Part I

Differentiation in a Nutshell I want to gather the various concepts at one place, to reveal the similarities between them, as they are often hidden by the serial nature of a curriculum. There are many terms and special cases, which deal with the process of differentiation. The basic idea, however, is the same in all […]

From the butterfly's wing to the tornado: Predicting turbulence

An old adage holds that the flap of a butterfly's wing in Brazil can trigger a tornado in Texas weeks later. Though chaos theory says it's basically impossible to compute exactly how that might happen, scientists have made advances in applying math to predict the phenomenon behind it called turbulence.

When proteins court each other, the dance moves matter

At every moment inside the human body, a carefully choreographed dance is being performed.

Quantum key system could make mobile transactions far more secure

With the growing popularity of mobile phone apps to pay for purchases at cash registers and gas pumps, users would like to know their personal financial information is safe from cyber-attacks. For the first time, researchers have demonstrated a prototype device that can send unbreakable secret keys from a handheld device to a terminal.

Optical fingerprint can reveal pollutants in the air

More efficient sensors are needed to be able to detect environmental pollution. Researchers at Chalmers University of Technology have proposed a new, sophisticated method of detecting molecules with sensors based on ultra-thin nanomaterials. Show More Summary

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