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Squeezed light makes Virgo's mirrors jitter Quantum mechanics does not only describe how the world works on its smallest scales, but also affects the motion of macroscopic objects. An international research team, including four scientists from the MPI for Gravitational Physics (Albert-Einstein-Institut/AEI) and Leibniz University in Hannover, Germany, has shown how they can influence the motion of mirrors, each weighing more than 40 kg, in the Advanced Virgo gravitational-wave detector trough the deliberate use of quantum mechanics. At the core of their experiment published today in Physcial Review Letters is a squeezed-light source, developed and built at the AEI in Hanover, which generates specially tuned laser radiation and improves the detector's measurement sensitivity during observing runs.
https://phys.org/, posted on 22 September 2020 | 10:22 pm
Wild birds as offerings to the Egyptian gods Millions of ibis and birds of prey mummies, sacrificed to the Egyptian gods Horus, Ra or Thoth, have been discovered in the necropolises of the Nile Valley. Such a quantity of mummified birds raises the question of their origin: Were they bred, like cats, or were they hunted? Scientists from the CNRS, the Université Claude Bernard Lyon 1 and the C2RMF have carried out extensive geochemical analyses on mummies from the Musée des Confluences, Lyon. According to their results, published on 22nd September 2020 in the journal Scientific Reports, they were wild birds.
https://phys.org/, posted on 22 September 2020 | 9:37 pm
New 3-D printing method could jump-start creation of tiny medical devices for the body Researchers at the National Institute of Standards and Technology (NIST) have developed a new method of 3-D-printing gels and other soft materials. Published in a new paper, it has the potential to create complex structures with nanometer-scale precision. Because many gels are compatible with living cells, the new method could jump-start the production of soft tiny medical devices such as drug delivery systems or flexible electrodes that can be inserted into the human body.
https://phys.org/, posted on 22 September 2020 | 9:32 pm
Warming temperatures are driving Arctic greening As Arctic summers warm, Earth's northern landscapes are changing. Using satellite images to track global tundra ecosystems over decades, a new study found the region has become greener, as warmer air and soil temperatures lead to increased plant growth.
https://phys.org/, posted on 22 September 2020 | 9:32 pm
Seismic data explains continental collision beneath Tibet In addition to being the last horizon for adventurers and spiritual seekers, the Himalaya region is a prime location for understanding geological processes. It hosts world-class mineral deposits of copper, lead, zinc, gold and silver, as well as rarer elements like lithium, antimony and chrome, that are essential to modern technology. The uplift of the Tibetan plateau even affects global climate by influencing atmospheric circulation and the development of seasonal monsoons.
https://phys.org/, posted on 22 September 2020 | 9:31 pm
NASA's new Mars rover will use X-rays to hunt fossils NASA's Mars 2020 Perseverance rover has a challenging road ahead: After having to make it through the harrowing entry, descent, and landing phase of the mission on Feb. 18, 2021, it will begin searching for traces of microscopic life from billions of years back. That's why it's packing PIXL, a precision X-ray device powered by artificial intelligence (AI).
https://phys.org/, posted on 22 September 2020 | 9:20 pm
Data sonification: Sounds from around the Milky Way The center of our Milky Way galaxy is too distant for us to visit in person, but we can still explore it. Telescopes give us a chance to see what the Galactic Center looks like in different types of light. By translating the inherently digital data (in the form of ones and zeroes) captured by telescopes in space into images, astronomers create visual representations that would otherwise be invisible to us.
https://phys.org/, posted on 22 September 2020 | 9:18 pm
Synopsis: Massive Mirrors Feel Fluctuating Photon Forces

Author(s): Marric Stephens

The LIGO and Virgo experiments measure a previously unobserved quantum effect acting at the macroscopic scale.


[Physics 13, s113] Published Tue Sep 22, 2020


http://physics.aps.org/, posted on 22 September 2020 | 12:00 pm
Arts & Culture: Scientists Take on Poetry

Author(s): Katherine Wright

Stuck with how to present your latest scientific project? Try a poem.


[Physics 13, 150] Published Tue Sep 22, 2020


http://physics.aps.org/, posted on 22 September 2020 | 12:00 pm
Trend: Sustainable Plastics Inspired by Nature

Author(s): Peter Halley

Plant-based plastics offer a sustainable alternative to traditional petrochemical plastics. Physicists and engineers are making the shift easier by fine-tuning the structure and function of these biomaterials while also developing better processing techniques.


[Physics 13, 126] Published Mon Sep 21, 2020


http://physics.aps.org/, posted on 21 September 2020 | 12:00 pm
Opinion: Quantum at Scale

Author(s): Joseph S. Broz, Irfan Siddiqi, and Darío Gil

Quantum technology can only fulfill its promise when it reaches a large scale and proves its value to society.


[Physics 13, 146] Published Mon Sep 21, 2020


http://physics.aps.org/, posted on 21 September 2020 | 12:00 pm
Focus: Compression of Tumors Causes Drug Resistance

Author(s): Dan Garisto

Pressure that develops as a tumor grows can limit the effectiveness of chemotherapy treatments.


[Physics 13, 147] Published Fri Sep 18, 2020


http://physics.aps.org/, posted on 18 September 2020 | 12:00 pm
Research News: Major Physics Publisher Goes Double Blind

Author(s): Matteo Rini

In an effort to increase fairness, the Institute of Physics Publishing plans to anonymize both reviewers and authors during the review process for its journals.


[Physics 13, 148] Published Fri Sep 18, 2020


http://physics.aps.org/, posted on 18 September 2020 | 12:00 pm
Supercool experiment reveals water is actually two liquids in one Supercooling liquid water to temperatures lower than ever achieved before has revealed new evidence that water is two liquids in one
https://www.newscientist.com/subject/physics/feed/content/, posted on 17 September 2020 | 9:00 pm
Synopsis: Kaon Decays Reevaluated

Author(s): Michael Schirber

A rigorous calculation of a matter-antimatter asymmetry in kaon decays has twice the precision of a previous calculation, removing tension that had existed between theory and experiment.


[Physics 13, s120] Published Thu Sep 17, 2020


http://physics.aps.org/, posted on 17 September 2020 | 12:00 pm
Slimy ships could slip through water more efficiently to save energy Inspired by seaweed, physicists are exploring how mucus can reduce drag on ship hulls and help vessels cut through water more efficiently to save energy and fuel
https://www.newscientist.com/subject/physics/feed/content/, posted on 15 September 2020 | 6:00 pm
Could we jump into a wormhole to save us from the world at present? The chances that wormholes exist are slim, but that doesn't mean that they can't provide a useful escape, writes Chanda Prescod-Weinstein
https://www.newscientist.com/subject/physics/feed/content/, posted on 9 September 2020 | 8:00 pm
Maths reveals the top strategies to win at fantasy football An analysis of top fantasy football players shows that they rely on strategic transfers and experience – every year of playing gave people an average 22 extra points a season
https://www.newscientist.com/subject/physics/feed/content/, posted on 9 September 2020 | 7:53 pm
Ultracold atoms can work together to shape or steer light When a collection of atoms is cooled to just above absolute zero, they can act as one, and control light through their electrical and magnetic interactions with it
https://www.newscientist.com/subject/physics/feed/content/, posted on 5 September 2020 | 1:16 am
Watch a toy boat float upside down in a levitating puddle By taking advantage of a strange phenomenon in which liquids can be shaken so fast that they levitate, researchers have made a toy boat float upside down
https://www.newscientist.com/subject/physics/feed/content/, posted on 2 September 2020 | 6:00 pm
The fuzzy law that could break the idea of a mathematical universe The discovery that a fundamental law of physics cannot be precisely defined challenges the ability of mathematics as we know it to describe reality completely
https://www.newscientist.com/subject/physics/feed/content/, posted on 2 September 2020 | 2:00 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