Acoustic plasmons found in hole-doped cuprate superconductors
The presence of acoustic plasmons in p-type (hole-doped) cuprate superconductors has now been confirmed by Dr. Ke-Jin Zhou and his team using high-resolution RIXS (Resonant Inelastic X-ray Scattering), at Diamond Light Source's I21 beamline. This dis.....»»
Preparation of F-passivated ZnO for quantum dot photovoltaics
For photovoltaic power generation, pn junction is the core unit. The electric field in the junction can separate and transport the electron and the hole to negative and positive electrodes, respectively. Once the pn junction is connected with a load.....»»
Hera asteroid mission completes acoustic testing
ESA's Hera asteroid mission has completed acoustic testing, confirming the spacecraft can withstand the sound of its own lift-off into orbit. Testing took place within the Agency's Large European Acoustic Facility at the ESTEC Test Center in the Neth.....»»
Record-breaking supermassive black hole is oldest even seen in X-rays
The supermassive black hole is 13.2 billion light-years away and could help uncover the mysteries of how the largest black holes form......»»
Researchers realize water-air acoustic communication based on broadband impedance matching
With increasing demand for exploration and utilization of marine resources, achieving direct and efficient communication between water and air has been an urgent need. Sound waves, as the only propagation way with low attenuation in both water and ai.....»»
Supermassive black hole found only half a billion years after Big Bang
There just isn't time for something that big to grow from a supernova remnant. Enlarge / Inset shows the JWST image of the galaxy in infrared, along with the X-rays from the black hole seen by the Chandra. While the X-ray source.....»»
Half of the mass of an early galaxy is in its central black hole
There just isn't time for something that big to grow from a supernova remnant. Enlarge / Inset shows the JWST image of the galaxy in infrared, along with the X-rays from the black hole seen by the Chandra. While the X-ray source.....»»
Arctic Ocean soundscapes reveal changes in mammal populations in response to climate change
While the sounds of our oceans may be familiar to us through the lens of nature documentaries, from the haunting calls of whales to the barks of some fish, this acoustic environment can provide a wealth of knowledge to scientists regarding the comple.....»»
2023 ozone hole ranks 16th largest, NASA and NOAA researchers find
The 2023 Antarctic ozone hole reached its maximum size on Sept. 21, according to annual satellite and balloon-based measurements made by NASA and NOAA. At 10 million square miles, or 26 million square kilometers, the hole ranked as the 12th largest s.....»»
Astronomers observe supermassive black hole feeding and feedback on sub-parsec scales
An international research team led by Takuma Izumi, an assistant professor at the National Astronomical Observatory of Japan, has achieved a milestone by observing the nearby active galactic nucleus of the Circinus Galaxy, with an extremely high reso.....»»
Controlling waves in magnets with superconductors for the first time
Quantum physicists at Delft University of Technology have shown that it's possible to control and manipulate spin waves on a chip using superconductors for the first time. These tiny waves in magnets may offer an alternative to electronics in the fut.....»»
Astronomers capture formation of a powerful cosmic jet
Using a network of radio telescopes on Earth and in space, astronomers have captured the most detailed view ever of a jet of plasma from a supermassive black hole. The jet travels at nearly the speed of light and shows complex, twisted patterns near.....»»
Enhanced laser heterodyne spectroscopy helps atmospheric greenhouse gas measurements
A research team led by Prof. Gao Xiaoming from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has improved the measurement accuracy of atmospheric greenhouse gases, including carbon dioxide, by using an Erbium-doped Fiber.....»»
How close is too close to a kilonova?
Cataclysmic events happen in the universe all the time. Black hole mergers, supernovae, gamma-ray bursts, and a whole host of others. Most of them happen in distant galaxies, so they pose no threat to us. But there are a few that could affect life on.....»»
A strategy for the spin-acoustic control of silicon vacancies in a 4H silicon carbide-based bulk acoustic resonator
Bulk acoustic resonators—stacked material structures inside which acoustic waves resonate—can be used to amplify sounds or filter out undesired noise. These resonators have found wide use in today's RF telecommunication, like Front-End Modules (F.....»»
Further evidence of Earth"s core leaking found on Baffin Island
A combined team of geochemists from Woods Hole Oceanographic Institution and California Institute of Technology has found evidence of high levels of helium-3 in rocks on Baffin Island—possible evidence that the Earth's core is leaking. In their pap.....»»
The Netflix Cup combines F1 and the PGA Tour in Las Vegas
It's official: Formula 1 and the PGA Tour are teaming up for The Netflix Cup — a nine-hole golf match teaming drivers with PGA Tour pros on November 14......»»
Measuring the changing soundscape in Glacier National Park
From the eerie echo of a bugling elk to the gentle swoosh of water lapping against a stony shore, a unique combination of sounds helps distinguish each national park. This acoustic environment, as perceived by humans, is known as a soundscape, and it.....»»
Metal-free and transition-metal-doped ZIF-8@CNT catalysts prepared by one-step high-temperature pyrolysis
Non-precious metal catalysts (NPMC) have strong potential in energy conversion devices due to their excellent oxygen reduction reaction (ORR) performance in fuel cells. Since in most NPMC materials, the accessible active sites play a vital role in ox.....»»
Here"s what it would take to see a black hole"s photon ring
Supermassive black holes are elusive creatures. Massive gravitational beasts that can power immensely bright quasars, or can lurk quietly among the bright stars of a galactic core. We mostly study them indirectly through their bright accretion disks.....»»
Lexus fills ‘big hole" in lineup with Texas-size TX crossover
Dealers have begun receiving their first Lexus TX large crossovers built in Indiana that are intended to keep younger buyers in the luxury brand as their families grow......»»