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Study verifies a missing piece to urban air quality puzzle Despite the prominent health threat posed by fine particulate pollution, fundamental aspects of its formation and evolution continue to elude scientists.
https://phys.org/, posted on 18 January 2020 | 9:22 pm
Rough seas delay escape test for SpaceX crew capsule Rough seas prompted SpaceX on Saturday to delay the emergency escape test of its new crew capsule by a day.
https://phys.org/, posted on 18 January 2020 | 9:18 pm
Scientists made a bow tie-shaped molecule and it changes colour A molecule shaped like a bow tie changes colour in the presence of toxic chemicals, which could make it useful for monitoring air
https://www.newscientist.com/subject/physics/feed/content/, posted on 18 January 2020 | 11:00 am
Male sparrows are less intimidated by the songs of aging rivals Few singers reach their sunset years with the same voice they had in younger days. Singing sparrows are no different. Duke University-led research reveals that elderly swamp sparrows don't sound quite like they used to—nor do they strike the same fear in other males who may be listening in.
https://phys.org/, posted on 18 January 2020 | 10:11 am
What is an endangered species? What makes for an endangered species classification isn't always obvious.
https://phys.org/, posted on 17 January 2020 | 10:18 pm
Watch the first ever video of a chemical bond breaking and forming A chemical bond between two metal atoms has been filmed breaking and forming for the first time – something scientists say they only dreamed of seeing
https://www.newscientist.com/subject/physics/feed/content/, posted on 17 January 2020 | 8:01 pm
Walking with atoms—chemical bond making and breaking recorded in action Ever since it was proposed that atoms are building blocks of the world, scientists have been trying to understand how and why they bond to each other. Be it a molecule (which is a group of atoms joined together in a particular fashion), or a block of material or a whole living organism, ultimately, everything is controlled by the way atoms bond, and the way bonds break.
https://phys.org/, posted on 17 January 2020 | 8:00 pm
Ingestible medical devices can be broken down with light A variety of medical devices can be inserted into the gastrointestinal tract to treat, diagnose, or monitor GI disorders. Many of these have to be removed by endoscopic surgery once their job is done. However, MIT engineers have now come up with a way to trigger such devices to break down inside the body when they are exposed to light from an ingestible LED.
https://phys.org/, posted on 17 January 2020 | 8:00 pm
Spider-Man-style robotic graspers defy gravity Specially designed vacuum suction units allow humans to climb walls. Scientists have developed a suction unit that can be used on rough surfaces, no matter how textured, and that has applications in the development of climbing robots and robotic arms with grasping capabilities.
https://phys.org/, posted on 17 January 2020 | 6:45 pm
Focus: Detecting the Rotation of a Quantum Spin

Author(s): Philip Ball

Researchers detected the effect of rotating a crystal on the spin of an embedded particle, a result that could lead to ultrasensitive rotation sensors.

[Physics 13, 5] Published Fri Jan 17, 2020

http://physics.aps.org/, posted on 17 January 2020 | 11:00 am
Synopsis: Lightscape Traps Rydberg Atoms in the Dark

A holographic technique confines excited Rydberg atoms in the central dark region of a 3D light-intensity pattern.  

[Physics] Published Thu Jan 16, 2020

http://physics.aps.org/, posted on 16 January 2020 | 11:00 am
Synopsis: A Catalog of High-Energy Gamma-Ray Sources

A high-altitude observatory has detected nine astrophysical sources emitting gamma rays with extremely high energies.

[Physics] Published Wed Jan 15, 2020

http://physics.aps.org/, posted on 15 January 2020 | 11:00 am
In the quantum realm, cause doesn’t necessarily come before effect In everyday life, causes always precede effects. But new experiments suggests that no such restriction applies in the quantum world
https://www.newscientist.com/subject/physics/feed/content/, posted on 15 January 2020 | 7:00 am
Strange particles found in Antarctica cannot be explained by physics A NASA science balloon picked up two high-energy particles and a new analysis reveals that they can't be explained by the standard model of particle physics
https://www.newscientist.com/subject/physics/feed/content/, posted on 14 January 2020 | 11:40 am
Synopsis: Two Lasers in One

A single semiconductor laser can produce both an amplitude-modulated and a frequency-modulated frequency comb, demonstrating a physical relationship between two types of output previously thought to be independent.

[Physics] Published Tue Jan 14, 2020

http://physics.aps.org/, posted on 14 January 2020 | 11:00 am
Synopsis: Superfluid Doughnut Spins at Supersonic Speeds

Researchers rev up a rotating Bose-Einstein condensate to beyond a critical speed, setting the stage for creating a giant superfluid vortex.

[Physics] Published Mon Jan 13, 2020

http://physics.aps.org/, posted on 13 January 2020 | 11:00 am
Synopsis: Directionally Sensitive Magnetoresistance

A new experiment shows that the semiconductor germanium exhibits unidirectional magnetoresistance, which had previously only been seen in more exotic materials.  

[Physics] Published Mon Jan 13, 2020

http://physics.aps.org/, posted on 13 January 2020 | 11:00 am
Trippy maths program could help figure out the shape of the universe Mathematicians have come up with a way to explore strange 3D spaces that could be related to the shape of the universe
https://www.newscientist.com/subject/physics/feed/content/, posted on 10 January 2020 | 12:47 pm
Focus: Catching Electrons as They Escape a Liquid

Author(s): Mark Buchanan

A new technique allows accurate measurements of electrons that escape a liquid surface—information that is essential for understanding chemical reactions in water droplets in the atmosphere.

[Physics 13, 4] Published Fri Jan 10, 2020

http://physics.aps.org/, posted on 10 January 2020 | 11:00 am
It would take Iran more than 4 months to develop nuclear weapons The US assassination of Iranian general Qassem Soleimani has raised fears of nuclear conflict, but Iran has been on the road to building nuclear weapons for some time
https://www.newscientist.com/subject/physics/feed/content/, posted on 8 January 2020 | 3:00 pm
Metallic hydrogen would be the ultimate fuel - if we can make it The universe’s most common element could also be its most wondrous. Two different groups of researchers say they've made it - but can either claim withstand scrutiny?
https://www.newscientist.com/subject/physics/feed/content/, posted on 1 January 2020 | 7:00 pm
Physicists beat Lorentz reciprocity for microwave transmission New device could boost telecommunications and be adapted for photonics
http://physicsworld.com/cws/channel/news, posted on 22 February 2018 | 3:27 pm
Japan’s SuperKEKB set for first particle collisions Revamped accelerator will soon be smashing electrons and positrons together
http://physicsworld.com/cws/channel/news, posted on 21 February 2018 | 3:45 pm
Wood-based 'supermaterial' is stronger and tougher than steel New material is made by compressing treated wood
http://physicsworld.com/cws/channel/news, posted on 21 February 2018 | 3:10 pm
Three photons bind together to make a ‘molecule’ of light Technique could be used to create quantum-information systems
http://physicsworld.com/cws/channel/news, posted on 20 February 2018 | 5:06 pm
Nuclear excitation by electron capture seen at long last Breakthrough could lead to new type of energy source
http://physicsworld.com/cws/channel/news, posted on 20 February 2018 | 2:55 pm
Pistachio trees 'talk' to their neighbours, reveals statistical physics Ising model could account for nut production of pistachio orchards
http://physicsworld.com/cws/channel/news, posted on 19 February 2018 | 4:43 pm
US National Science Foundation clamps down on misconduct Agency will now require every grantee organization to report cases of sexual harassment
http://physicsworld.com/cws/channel/news, posted on 15 February 2018 | 12:57 pm