Scientists see energy gap modulations in a cuprate superconductor For years physicists have been trying to decipher the electronic details of high-temperature superconductors. These materials could revolutionize energy transmission and electronics because of their ability to carry electric current with no energy loss when cooled below a certain temperature. Details of "high-Tc" superconductors' microscopic electronic structure could reveal how different phases (states of matter) compete or interact with superconductivity—a state in which like-charged electrons somehow overcome their repulsion to pair up and flow freely. The ultimate goal is to understand how to make these materials act as superconductors without the need for supercooling.
Traces of ancient rainforest in Antarctica point to a warmer prehistoric world Researchers have found evidence of rainforests near the South Pole 90 million years ago, suggesting the climate was exceptionally warm at the time.
Landmark study concludes marine life can be rebuilt by 2050 An international study recently published in the journal Nature, led by KAUST Professors Carlos Duarte and Susana Agustí, lays out the essential roadmap of actions required for the planet's marine life to recover to full abundance by 2050.
Using iPS cells to decipher the timing at the beginning of life Researchers led by Kyoto University have reconstituted the human segmentation clock, a key focus of embryonic development research, using induced pluripotent stem cells (iPSCs).
Oldest-ever human genetic evidence clarifies dispute over our ancestors Genetic information from an 800,000-year-old human fossil has been retrieved for the first time. The results from the University of Copenhagen shed light on one of the branching points in the human family tree, reaching much further back in time than previously possible.
Smaller than expected phytoplankton may mean less carbon sequestered at sea bottom A study that included the first-ever winter sampling of phytoplankton in the North Atlantic revealed cells smaller than what scientists expected, meaning a key weapon in the fight against excess carbon dioxide in the atmosphere may not be as powerful as had been thought.
Synopsis: Anomalous Magnetic Moment Still Anomalous
Supercomputer simulations rule out a known quantum effect as the cause of the muon’s unexpectedly strong magnetic moment.
[Physics 13, s39] Published Wed Apr 01, 2020
We now know what causes wine ‘legs’ to drip down inside a glass Wine tears – the drops that form inside a glass after wine is swirled in a glass – are caused by the formation of an unstable shock wave
Even a computer the size of the universe can’t predict everything Fundamental limits on space and time mean that the motion of three black holes is impossible to predict, even with the most powerful computer that could ever be built
Viewpoint: Lining Up for Wakefield Acceleration
Author(s): Jeroen van Tilborg
A proposed design for plasma accelerators would use line-focused laser pulses to overcome the problem of particles outrunning the acceleration region.
[Physics 13, 49] Published Tue Mar 31, 2020
Synopsis: Solving a Magnetic Puzzle
Spectroscopic measurements explain why a van der Waals ferromagnet displays different magnetic behavior in its layered and bulk forms.
[Physics 13, s42] Published Tue Mar 31, 2020
Viewpoint: Finding Spin Hedgehogs in Chiral Crystals
Author(s): J. Hugo Dil
The observation of radial spin texture in chiral tellurium crystals could lead to greater control over electron transport.
[Physics 13, 45] Published Mon Mar 30, 2020
Synopsis: Better Electron Bunches for X-Ray Lasers
Researchers show that they can better shape an electron bunch by using a hollow laser beam, something that could allow them to generate brighter x rays for x-ray free-electron lasers.
[Physics 13, s45] Published Mon Mar 30, 2020
Feature: Big Labs Replace Data Taking with New Priorities
Large research facilities have curtailed data collection and shut their doors—but their scientists are busier than ever, and some have joined the fight against COVID-19.
[Physics 13, 48] Published Mon Mar 30, 2020
Feature: Physicists, Share Your Experiences
How is the COVID-19 pandemic affecting you?
[Physics 13, 47] Published Fri Mar 27, 2020
How a new twist on quantum theory could solve its biggest mystery The "wave function collapse" transforms vague clouds of quantum possibilities into the physical reality we know – but no one knows how. New experiments are finally revealing reality in the making
We still don't understand a basic fact about the universe Our measurements of the Hubble constant can't seem to come up with a consistent answer. What we learn next may alter our view of the cosmos, writes Chanda Prescod-Weinstein
Jim Al-Khalili's The World According to Physics is a thrilling ride A new book from Jim Al-Khalili makes cutting-edge physics easily understandable and makes it clear why he fell in love with the subject as a teenager
We've figured out why bubbles make a 'pop' sound when they burst A number of difference forces are involved in producing sound when a bubble pops, and the exact noise depends on the chemical properties of the soap film
Radioactive review: A reimagining of Marie Curie's luminous legacy A new film squares up to the tough task of reinventing Marie Curie, one of science's biggest stars, by building a big picture of her work – and its future fallout
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