Nanoscience breakthrough: Probing particles smaller than a billionth of a meter Scientists at Tokyo Institute of Technology (Tokyo Tech) have developed a new methodology that allows researchers to assess the chemical composition and structure of metallic particles with a diameter of only 0.5 to 2 nm. This breakthrough in analytical techniques will enable the development and application of minuscule materials in the fields of electronics, biomedicine, chemistry, and more.
Google’s quantum supremacy algorithm has found its first practical use Google has put the algorithm it used to achieve quantum supremacy to work. It generated verifiably random numbers, which could be used one day in encryption or lotteries
Leaving home is beneficial for male squirrels but not for females, study shows In the world of squirrels, moving away from your home turf has better outcomes for males than for females, according to a new study by University of Alberta ecologists.
Newfound Martian aurora actually the most common; sheds light on Mars' changing climate A type of Martian aurora first identified by NASA's MAVEN spacecraft in 2016 is actually the most common form of aurora occurring on the Red Planet, according to new results from the mission. The aurora is known as a proton aurora and can help scientists track water loss from Mars' atmosphere.
Bone bandage soaks up pro-healing biochemical to accelerate repair Researchers at Duke University have engineered a bandage that captures and holds a pro-healing molecule at the site of a bone break to accelerate and improve the natural healing process.
A self-cleaning surface that repels even the deadliest superbugs A team of researchers at McMaster University has developed a self-cleaning surface that can repel all forms of bacteria, preventing the transfer of antibiotic-resistant superbugs and other dangerous bacteria in settings ranging from hospitals to kitchens.
Protein injections in medicine Pathogens can use a range of toxins to damage their host organism. Bacteria, such as those responsible for causing the deadly Plague, use a special injection mechanism to deliver their poisonous contents into the host cell. Stefan Raunser, Director at the Max Planck Institute for Molecular Physiology in Dortmund, together with his team, has already produced a detailed analysis of this toxin's sophisticated mechanism. They have now succeeded in replacing the toxin in this nano-syringe with a different substance. This accomplishment creates a basis for their ultimate goal to use bacterial syringes as drug transporters in medicine.
Quantum computer sets new record for finding prime number factors A relatively small quantum computer has broken a number-factoring record, which may one day threaten data encryption methods that rely on factoring large numbers
Time travel without paradoxes is possible with many parallel timelines Time travel brings up paradoxes that break the laws of physics, but multiple similar timelines running parallel to one another could get around this
Focus: New Spaceship Sail Self-Centers
Author(s): Michael Schirber
A technology for propelling spacecraft using a “sail” pushed by light has passed an initial test, with the prototype device staying centered in a laser beam.
[Physics 12, 143] Published Fri Dec 13, 2019
Google has performed the biggest quantum chemistry simulation ever Google's Sycamore quantum computer, which recently demonstrated its dominance over ordinary computers, is now breaking records in quantum chemistry
Synopsis: How to Transmit Light Through a Vapor
By combining two frequencies of light into a pulse called a simulton, a weak signal can travel through a dense atomic vapor as though the medium were nearly transparent.
[Physics] Published Thu Dec 12, 2019
Feature: Wonder Material Grows on Trees
A material that combines graphite with cellulose from wood pulp is lighter and stronger than structural materials like steels, titanium alloys, and carbon fibers.
[Physics 12, 142] Published Thu Dec 12, 2019
Heat can quantum leap across a totally empty vacuum Even a total vacuum is full of strange quantum fluctuations, which have now been caught making heat leap across empty space for the first time
Viewpoint: “Tweezer Clock” Offers New Possibilities in Timekeeping
Author(s): Andrew Ludlow
An optical clock based on an array of individually trapped atoms provides a new twist in atom-based timekeeping.
[Physics 12, 141] Published Wed Dec 11, 2019
Synopsis: New Hope for Milky Way Dark Matter
The so-called gamma-ray excess that radiates from the core of our Galaxy might be from dark matter after all.
[Physics] Published Wed Dec 11, 2019
Does tapping a beer can prevent it foaming over? Scientists found out A rigorous randomised trial has put to bed the idea that tapping or flicking a can of beer makes bubbles come to the top and prevents the liquid fizzing out
In the quantum world, uncertainty reigns – or is it all in the mind? Schrödinger's dead-and-alive cat embodies the uncertainty of the quantum world. But whether parallel realities truly exist is a question less of science than belief
Synopsis: Probing Wave Turbulence at High Gravity
A wave experiment in a centrifuge reveals how the size of the fluid container strongly influences turbulent behavior.
[Physics] Published Tue Dec 10, 2019
Feature: Undergrad Research Teaches Skills and Confidence
At the PhysCon meeting for undergraduate physics majors, attendees say research is key to their education.
[Physics 12, 140] Published Mon Dec 09, 2019
Physicists beat Lorentz reciprocity for microwave transmission New device could boost telecommunications and be adapted for photonics
Japan’s SuperKEKB set for first particle collisions Revamped accelerator will soon be smashing electrons and positrons together
Wood-based 'supermaterial' is stronger and tougher than steel New material is made by compressing treated wood
Three photons bind together to make a ‘molecule’ of light Technique could be used to create quantum-information systems
Nuclear excitation by electron capture seen at long last Breakthrough could lead to new type of energy source
Pistachio trees 'talk' to their neighbours, reveals statistical physics Ising model could account for nut production of pistachio orchards
US National Science Foundation clamps down on misconduct Agency will now require every grantee organization to report cases of sexual harassment