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.....»»
X-rays reveal hidden “first drafts” of ancient Egyptian paintings at Theban Necropolis
Finds include hidden third "ghost hand," alterations to a crown in Ramesses II portrait Enlarge / Portrait of Ramesses II in Nakhtamun tomb, Chief of the Altar in the Ramesseum (possibly 20th Dynasty, circa 1100 BCE). (credit: M.....»»
Scientists propose new design to implement highly directional single-photon source
A team of researchers from the Institute of Optics of CSIC and the Institute of Photonic Sciences (ICFO) of Barcelona has proposed a new design to implement highly directional single-photon sources, which constitutes an improvement over currently exi.....»»
Photonic time crystals could open the door to a new branch of optics
Refractive index—the ratio of the speed of electromagnetic radiation in a medium to its speed in a vacuum—can be modulated fast enough to generate photonic time crystals (PTCs) in the near-visible part of the spectrum, a new study published in th.....»»
Machine learning enhances X-ray imaging of nanotextures
Using a combination of high-powered X-rays, phase-retrieval algorithms and machine learning, Cornell researchers revealed the intricate nanotextures in thin-film materials, offering scientists a new, streamlined approach to analyzing potential candid.....»»
Research group unveils properties of cosmic-ray sulfur and the composition of other primary cosmic rays
Charged cosmic rays, high-energy clusters of particles moving through space, were first described in 1912 by physicist Victor Hess. Since their discovery, they have been the topic of numerous astrophysics studies aimed at better understanding their o.....»»
Razer undergoes desertification with its new PUBG: BATTLEGROUND collection
Razer's PUBG collab includes three of its best peripherals, like the lightning-fast Huntsman V2 Linear Optical Switch keyboard......»»
What’s new on Disney+ in July 2023
It's another quiet month for Disney+ in July as Mickey Mouse meets himself and Secret Invasion continues to unfold in the MCU!.....»»
Fractured foundations: How Antarctica"s "landfast" ice is dwindling and why that"s bad news
There's more to Antarctic ice than meets the eye. Sea ice is not a uniform crust overlying the salty Southern Ocean......»»
Orange Business, Orange Cyberdefense and Palo Alto Networks improve security for enterprises
Orange Business, Orange Cyberdefense and Palo Alto Networks have joined forces to deliver a managed Secure Access Service Edge (SASE) solution that meets enterprise customers’ most demanding networking and security requirements with high performanc.....»»
Scientists conduct first test of a wireless cosmic ray navigation system
System could be used to guide underwater robots or underground autonomous vehicles Enlarge / Cosmic rays showering down on Earth's atmosphere are the basis of a new wireless alternative system to GPS navigation. (credit: 2015 Hir.....»»
Ultra low-cost smartphone attachment measures blood pressure at home
Clever use of physics uses pressure on the skin and optics to track blood flow. Enlarge / The BPClip in action. (credit: Yinan Xuan et al.) Given that 47 percent of adults in the US alone have hypertension, keeping on to.....»»
Midgut gland of scallops: A valuable source of fucosylated heparan sulfate
Glycosaminoglycans (GAGs), including chondroitin sulfate (CS), heparan sulfate (HS), heparin, and hyaluronan are linear and acidic polysaccharides found in the extracellular matrix of all animal tissues. GAGs are widely used as functional ingredients.....»»
Spectropolarimetric imaging: A magical way to get multidimensional information
In the world of optics, capturing high-dimensional optical information is crucial for understanding and characterizing various targets across different scenes. This includes important aspects like irradiance, spectrum, space, polarization, and phase......»»
Breakthrough in understanding charge transport in organic solar cells
Researchers from the Professorship of Optics and Photonics of Condensed Matter, headed by Prof. Dr. Carsten Deibel, of Chemnitz University of Technology and other partner institutions are currently working together on solar cells made of novel organi.....»»
Islands of Insight is Zelda: Tears of the Kingdom meets The Witness
Island of Insight looks like a combination of The Legend of Zelda: Tears of the Kingdom and The Witness......»»
CALorimetric Electron Telescope (CALET) captures charge-sign dependent cosmic ray modulation
The movement of cosmic ray particles across space, such as electrons and protons, is influenced by the sun's magnetic field, causing fluctuations in the intensity of galactic cosmic rays (GCRs) reaching Earth in response to the solar cycle. During pe.....»»
Study models geomagnetic field shielding over the last 100,000 years
New models of how the geomagnetic field that shields the Earth's atmosphere from cosmic rays has changed over tens of thousands of years can help us understand how the climate has changed over a similar timescale......»»
Homo naledi were burying their dead at least 100,000 years before humans
Lee Berger: "We feel [this meets] the litmus test of the most ancient human burials." Enlarge / Exploration team members Megan Berger and Rick Hunter navigate the narrow chutes leading to the Dinaledi Chamber of the Rising Star c.....»»
Monster DNA Go review: less than meets the eye
The Monster DNA Go are priced right and look OK, but these wireless earbuds under-deliver on their promises......»»
X-rays visualize how one of nature"s strongest bonds breaks
The use of short flashes of X-ray light brings scientists one big step closer toward developing better catalysts to transform the greenhouse gas methane into a less harmful chemical. The result, published in the journal Science, reveals for the first.....»»