Using atomic excitations to measure the rotation of spacetime
How would atoms behave near a supermassive object? We know how atoms behave in extremely weak gravity like that at the Earth's surface: They can be excited from a lower energy level to a higher one when an electron absorbs a photon or a nucleus absor.....»»
Another way to extract energy from black holes?
The gravitational field of a rotating black hole is powerful and strange. It is so powerful that it warps space and time back upon itself, and it is so strange that even simple concepts such as motion and rotation are turned on their heads. Understan.....»»
A single atom can change the directional profile of the light emitted in scanning tunneling microscopes
Researchers from Madrid explain a phenomenon that allows the direction of light emission to be controlled at the atomic scale. The paper provides a detailed explanation of how the profile of the light collected in a scanning tunneling microscope (STM.....»»
A novel state of thorium opens the possibility for a nuclear clock
Why are there atomic clocks but no nuclear clocks? After all, an atom's nucleus is typically surrounded by many electrons, so in principle it should be less susceptible to outside noise (in the form of light). A nucleus, for high-atomic number atoms,.....»»
Astrophysicists measure "dance" of electrons in the glow from exploding neutron stars
The temperature of elementary particles has been observed in the radioactive glow following the collision of two neutron stars and the birth of a black hole. This has, for the first time, made it possible to measure the microscopic, physical properti.....»»
Study introduces novel conservation law that operates down to the subcycle level during strong-field ionization
The conservation law is a fundamental tool that significantly aids our quest to understand the world, playing a crucial role across various scientific disciplines. Particularly in strong-field physics, these laws enhance our comprehension of atomic a.....»»
Future Apple Watches could tell you if you’re at risk for diabetes
Apple has been working on a way to measure blood sugar levels without using a needle, and it looks like some progress has been made......»»
Astronaut hospitalized after returning from 235-day space mission
NASA says the astronaut is in "stable condition under observation as a precautionary measure." NASA said Friday one its astronauts is in a hospital in Florida for medical observat.....»»
Live-cell imaging under centrifugation: New method measures the forces that keep the nuclei of living cells centered
Using two specialized microscopes invented at the Marine Biological Laboratory (MBL), a team of researchers from Japan and the MBL have developed a new method to measure the forces that keep the nucleus centered within a living cell. The experiments.....»»
Massive buildings are actually slowing down Earth’s rotation
So called human-built megastructures may actually be slowing down the Earth’s rotation. This isn’t exactly new information, but it has recently been making the rounds … The post Massive buildings are actually slowing down Earth’s rota.....»»
Live-cell imaging under centrifugation: New method measure the forces that keep the nuclei of living cells centered
Using two specialized microscopes invented at the Marine Biological Laboratory (MBL), a team of researchers from Japan and the MBL have developed a new method to measure the forces that keep the nucleus centered within a living cell. The experiments.....»»
Specially designed transistors allow researchers to "hear" defects in a promising nanomaterial
An international research team led by NYU Tandon School of Engineering and KAIST (Korea Advanced Institute of Science and Technology) has pioneered a new technique to identify and characterize atomic-scale defects in hexagonal boron nitride (hBN), a.....»»
Researchers synthesize carbon nanotubes with precise chirality
Researchers have achieved a significant breakthrough in the synthesis of carbon nanotubes (CNTs) by developing a novel catalyst that allows for precise control over their atomic arrangement, known as chirality. This advancement paves the way for the.....»»
Adobe shows off 3D rotation tool for flat drawings
Project Turntable uses machine learning to craft posable 3D models from 2D vectors. At this point, we're used to AI-powered image tools that instantly pull off previously high-eff.....»»
New technique enhances precision in measuring short-lived atomic nuclei
Researchers at the Heavy Ion Research Facility in Lanzhou (HIRFL-CSR) have introduced a technique, Tune-IMS, designed to improve the precision of isochronous mass spectrometry (IMS) in measuring short-lived atomic nuclei. The development offers refin.....»»
Leap Seconds May Be Abandoned by the World’s Timekeepers
We have been adding “leap seconds” to time kept by our atomic clocks, but soon we may have to subtract one. Are the tiny adjustments worth the bother?.....»»
The neutron lifetime problem—and its possible solution
Neutrons are among the basic building blocks of matter. As long as they are part of a stable atomic nucleus, they can stay there for arbitrary periods of time. However, the situation is different for free neutrons: They decay—after about 15 minutes.....»»
EarthCARE synergy reveals power of clouds and aerosols
With the initial images from each of the instruments aboard ESA's EarthCARE satellite now in hand, it's time to reveal how these four advanced sensors work in synergy to measure exactly how clouds and aerosols influence the heating and cooling of our.....»»
New theoretical framework sets limits for the realization of quantum processes in spacetime
Bell's theorem, the well-known theoretical framework introduced by John Bell decades ago, delineates the limits of classical physical processes arising from relativistic causality principles. These are principles rooted in Einstein's theory of relati.....»»
Multicolor persistent luminescent materials for dynamic optical anti-counterfeiting
Optical anti-counterfeiting technology, as a preventive measure, has deeply permeated our daily lives. Visually readable codes designed based on optical materials are widely used due to their ease of verification, reasonable cost, and difficulty in r.....»»
First coherent picture of an atomic nucleus made of quarks and gluons
The atomic nucleus is made up of protons and neutrons, particles that exist through the interaction of quarks bonded by gluons. It would seem, therefore, that it should not be difficult to reproduce all the properties of atomic nuclei hitherto observ.....»»