Demonstrating a 1-Pbps orbital angular momentum fiber-optic transmission
Space-division multiplexing (SDM) technology has a promising role in overcoming the so-called "capacity crunch" of existing single mode fiber (SMF). Now, researchers in China experimentally demonstrated an orbital-angular-momentum (OAM) mode based SD.....»»
A puzzling illness paralyzed US kids every other year—until it didn’t
Researchers braced for a surge in 2022 that never came—and no one knows why. Enlarge / This thin section transmission electron microscopic (TEM) image reveals numerous spheroid-shaped Enterovirus-D68 (EV-D68) virions. (credit:.....»»
Alfa Romeo looks to build momentum
Alfa Romeo Tonale sales reached 2,096 last year in its short time on the market......»»
How to get started using Optic ID for Apple Vision Pro
The Apple Vision Pro uses Optic ID as biometric authentication for payments and certain visionOS actions. Here's how it works, and how to use it.An Apple graphic representing Optic IDApple's biometric security processes has evolved over the years, st.....»»
Orbital resonance: The striking gravitational dance done by planets with aligning orbits
Planets orbit their parent stars while separated by enormous distances—in our solar system, planets are like grains of sand in a region the size of a football field. The time that planets take to orbit their suns have no specific relationship to ea.....»»
Nondestructive technique for identifying nuclides using neutron resonance transmission analysis
A feasibility study conducted at CSNS Back-n facility, recently published in Nuclear Science and Techniques, demonstrates a significant prospect of NRTA in nondestructive nuclide identification......»»
Generating powerful optical vortices directly from a thin-disk laser oscillator
In recent years, optical vortices have attracted extensive attention in laser advanced manufacturing because of their annual intensity distribution and orbital angular momentum......»»
Researchers decode key airflow pattern impacting global climate
The Hadley circulation is a key atmospheric circulation pattern in the tropics. It helps even out the temperature between the equator and the poles by moving energy and momentum toward higher latitudes. However, recent studies indicate that the Hadle.....»»
Fiber Optics Bring You Internet. Now They’re Also Listening to Trains
“Distributed acoustic sensing” looks for disturbances in fiber to detect earthquakes and even insects. Can it also improve rail safety?.....»»
Axiom-3 astronaut offers fresh perspectives from inside the ISS
A private astronaut visiting the ISS as part of the Axiom-3 mission has been sharing some eye-catching images captured inside the orbital outpost......»»
Earth"s atmospheric glow can be seen from the International Space Station
This high exposure photograph revealed Earth's atmospheric glow against the backdrop of a starry sky in this image taken from the International Space Station on Jan. 21, 2024. At the time, the orbital lab was 258 miles above the Pacific Ocean northea.....»»
Bessel-beam-based side-view measurement of seven-core fiber internal core distribution
Optical fiber, as the basic carrier of modern high-speed and high-capacity communication, is the key to the interconnection of the world. With the rapid development of the communications industry in recent decades, ordinary single-mode optical fiber.....»»
UK teens experienced spike in online harm during COVID-19 pandemic, report claims
A new pair of reports co-led by a UCL researcher highlights the scale of online harm faced by young people in the UK while also demonstrating the impact of educational workshops in equipping young people with tools to navigate the digital world......»»
Astronomers analyze masses, orbital properties and atmospheric features of six exoplanets
A recently discovered solar system with six confirmed exoplanets and a possible seventh is boosting astronomers' knowledge of planet formation and evolution. Relying on a globe-spanning arsenal of observatories and instruments, a team led by research.....»»
Here’s how Honda and GM are building production hydrogen fuel cells
Uses include mining equipment, class 8 trucks, and power generators. Enlarge / Anode and cathode "inks" are applied to carbon-fiber paper. (credit: GM/Honda) BROWNSTOWN, Mich.—Today, a joint venture between General Mot.....»»
Validating the low-rank hypothesis in complex systems
In a new study, scientists have investigated the pervasive low-rank hypothesis in complex systems, demonstrating that despite high-dimensional nonlinear dynamics, many real networks exhibit rapidly decreasing singular values, supporting the feasibili.....»»
Vera Rubin will help us find the weird and wonderful things happening in the solar system
The Vera Rubin Observatory (VRO) is something special among telescopes. It's not built for better angular resolution and increased resolving power like the European Extremely Large Telescope or the Giant Magellan Telescope. It's built around a massiv.....»»
Scientists compute with light inside hair-thin optical fiber
Scientists at Heriot-Watt University in Edinburgh, Scotland, have found a powerful new way to program optical circuits that are critical to the delivery of future technologies such as unhackable communications networks and ultrafast quantum computers.....»»
Astrophysicist proposes a new theory of gravity without a conservation law
The general theory of relativity is based on the concept of curved space–time. To describe how the energy and momentum of fields are distributed in space–time, as well as how they interact with the gravitational field, a special mathematical cons.....»»
New method for integrating electro-optic heterointerfaces in MIS structures for plasmonic waveguide modulation
Researchers at the University of Toronto, led by Dr. Amr S. Helmy, have developed a new method for integrating electro-optic SiO2/ITO heterointerfaces into metal–insulator–semiconductor (MIS) structures. This breakthrough is expected to lead to t.....»»
Researchers design novel hollow-fiber Cu penetration electrode for efficient CO₂ electroreduction
Electrochemical conversion of CO2 into value-added chemical fuels driven by renewable electrical energy has roles in reducing net CO2 emission and in addressing energy consumption......»»