Non-linear optics meets X-rays
The recent advent of femtosecond X-ray sources offers unprecedented opportunities for structural and dynamical studies. It requires, however, manipulating spectral properties, as commonly done by non-linear optics at visible/infrared wavelengths. Her.....»»
Bowtie resonators that build themselves bridge the gap between nanoscopic and macroscopic
A central goal in quantum optics and photonics is to increase the strength of the interaction between light and matter to produce, for example, better photodetectors or quantum light sources. The best way to do that is to use optical resonators that.....»»
Unlocking a climate puzzle: Study reveals hidden physics in quasi-linear temperature-radiation link
Curious about what drives Earth's climate sensitivity? A recent study in Advances in Atmospheric Sciences explores the complex links transforming the relationship between surface temperature and outgoing longwave radiation (OLR) from quartic to quasi.....»»
Physicist explains X-rays that shouldn"t exist in "cold" plasma
For about 20 years, Caltech Professor of Applied Physics Paul Bellan and his group have been creating magnetically accelerated jets of plasma, an electrically conducting gas composed of ions and electrons, in a vacuum chamber big enough to hold a per.....»»
When physics meets biology: Prion protein orchestrates liquid–liquid phase separation with copper
In a study published in Science Advances, researchers from the Federal University of Rio de Janeiro (UFRJ) and the German Center for Neurodegenerative Diseases (DZNE-Berlin) shed light on the intricate dance between the prion protein and copper ions.....»»
An anomalous relativistic emission arising from the intense interaction of lasers with plasma mirrors
Interactions between intense laser pulses and plasma mirrors have been the focus of several recent physics studies due to the interesting effects they produce. Experiments have revealed that these interactions can generate a non-linear physical proce.....»»
There"s a financial literacy gender gap—older women are eager for education that meets their needs
Every day, families across the U.S. have to make difficult decisions about budgeting, spending, insurance, investments, savings, retirement and on and on. When faced with these choices, financial literacy—that is, knowing how to make informed decis.....»»
Protection of highly threatened sharks and rays inadequate, study finds
Biodiversity—the total variation of life—is multidimensional. Its study encompasses multiple facets, such as taxonomy (the variety of species), phylogenetics (their evolutionary history) and functionality (the ecological roles that species play i.....»»
Meet “Amaterasu”: Astronomers detect highest energy cosmic ray since 1991
The Telescope Array in Utah's West Desert picked up a rare particle with 244 EeV energy. Artist’s illustration of extensive air showers induced by ultra-high-energy cosmic rays. Credit: Toshihiro Fujii/L-INSIGHT/Kyoto.....»»
Investigating the contribution of gamma-ray blazar flares to neutrino flux
Blazars belong to the family of active galactic nuclei called quasars. What differentiates them from quasars is that the flares ejected out of these active galactic nuclei are pointed toward the Earth. These flares contain high-energy cosmic rays whi.....»»
Saturday Citations: Bronze-Age gender representation, gamma rays, nice bonobos in your neighborhood want to meet you
This week's news roundup includes a Bronze Age discovery that calls into question existing ideas of gender representation from the period. More research confirms that bonobos are actually nice. Plus: Actual good climate news?.....»»
Gamma-rays with energies of up to 13 teraelectronvolts measured for brightest burst of all time
Astronomers with The LHAASO Collaboration have found that last year's GRB 221009A gamma-ray burst, subsequently nicknamed the Brightest of All Time (BOAT), carried with it 13 teraelectronvolts of energy. In their study, reported in the journal Scienc.....»»
Radiocarbon dating meets Egyptology and Biblical accounts in the city of Gezer
New dates provide detailed insights into the timing of events in the ancient city of Gezer, according to a study published November 15, 2023 in the open-access journal PLOS ONE by Lyndelle Webster of the Austrian Academy of Sciences and colleagues......»»
Evolution of taste: Study discovers bitter taste receptor in sharks
A research team from the University of Cologne, in collaboration with colleagues from the Leibniz Institute for Food Systems Biology in Freising, has discovered a receptor for bitter taste in twelve different cartilaginous fish (sharks and rays). The.....»»
Gaming: Just Dance being made accessible for everyone
Seth Burke, 14, who uses a wheelchair, meets the Paris-based team behind hit game Just Dance......»»
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......»»
Q&A: Philosophy meets physics—professor uncovers hidden truth about Newton"s 300-year old law
Like most high schoolers in an intro to physics class, Dan Hoek heard the legendary tale of Isaac Newton and the apple......»»
Magnetic shielding for particle detectors
Particle physicists who hunt for neutrinos, cosmic-rays and other charged particles rely on sophisticated instruments that detect very faint bursts of light given off when incident particles interact with a medium. The most common such instruments, c.....»»
X-rays reveal all the differences between authentic AirPods and counterfeits
Counterfeit Apple products are a real problem. Earlier this year we saw US officials seize over a thousand fake AirPods and Apple Watches. And Apple has a dedicated team for dealing with illegal knockoffs. While good counterfeits may look very convin.....»»
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.....»»