Image: An aurora in another light
The Visible Infrared Imaging Radiometer Suite sensor on the NOAA-NASA Suomi NPP satellite captured this image of the aurora borealis, or northern lights, over western Canada at 3:23 a.m. MST (5:23 a.m. EST) on November 5, 2023......»»
Wireless antennas harness light to decode cellular communication signals
Monitoring electrical signals in biological systems helps scientists understand how cells communicate, which can aid in the diagnosis and treatment of conditions like arrhythmia and Alzheimer's......»»
New electron microscopy technique reveals complex spin structures at femtosecond timescales
Plasmons are collective oscillations of electrons in a solid and are important for a wide range of applications, such as sensing, catalysis, and light harvesting. Plasmonic waves that travel along the surface of a metal, called surface plasmon polari.....»»
Advancing light control: New opportunities for metasurfaces in optoelectronics
A global review of advancements in integrating metasurfaces—thin planar arrays of nanostructures—into optoelectronic devices highlights their potential to transform technologies such as light emitting diodes (LEDs), lasers, optical modulators, an.....»»
How to stop spam calls and reclaim some sanity on your iPhone
Spam calls are a seemingly endless nuisance with no solution, but there are several ways to get relief built into your iPhone and through services like those provided by Incogni.Stop spam calls with Incogni's robust service. Image credit - IncogniIt'.....»»
Shedding light on snow"s crucial role in Earth"s climate system
EU researchers are braving extreme Arctic conditions to shed light on snow's crucial role in Earth's climate system......»»
First results from 2021 rocket launch shed light on aurora"s birth
Results from a 2021 experiment led by a University of Alaska Fairbanks scientist have begun to reveal the particle-level processes that create the type of auroras that dance rapidly across the sky......»»
Compact on-chip polarimeter measures light polarization with high accuracy
Reliably measuring the polarization state of light is crucial for various technological applications, ranging from optical communication to biomedical imaging. Yet conventional polarimeters are made of bulky components, which makes them difficult to.....»»
Celebrating a white Christmas — martian style
The Mars Express spacecraft has snapped an image of icy and snowy hillsides on Mars......»»
How to solve the Three Eyed Gate puzzle in Indiana Jones and the Great Circle
Even Indy doesn't like light puzzles in Indiana Jones and the Great Circle. The three eyed gate puzzle is mandatory, though, so we will help you solve it......»»
iOS 18.2 adds two hidden tools for controlling your iPhone’s volume
iOS 18.2 comes with a lot of new features that are hard to miss, like the Mail redesign, new Image Playground app, and Genmoji. But there are also two new tools hidden inside the Settings app in iOS 18.2: you can add volume controls back to your iPho.....»»
The New Glenn rocket’s seven powerful engines may light up as soon as today
"Maybe, maybe, maybe today, maybe soon. I think it's very soon." In a widely anticipated test, Blue Origin may ignite the seven main engines on its New Glenn rocket as soon as Thu.....»»
EU interoperability spat shows Apple and Meta will never agree about privacy
While Apple is accusing Meta of trying to use EU laws to abuse privacy, Meta is saying Apple is worse. This is just the latest chapter in a long-running fight between the tech giants.Left: Apple CEO Tim Cook. Right: Meta CEO Mark Zuckerberg — image.....»»
Prototype sunscreen uses TiO₂ nanoparticles to cool skin while blocking UV rays
Wearing sunscreen is important to protect your skin from the harmful effects of UV radiation but doesn't cool people off. However, a new formula, described in Nano Letters, protects against both UV light and heat from the sun using radiative cooling......»»
Harmful gas billowing from Texas and New Mexico comes mostly from smaller leaks, researchers say
The blob on the satellite image is a rainbow of colors. An analyst digitally sharpens it and there, highlighted in red, is the source: a concrete oil pad spewing methane......»»
Scientists recreate molecular timers to control nanomachine activation rates
Living organisms monitor time—and react to it—in many different ways, from detecting light and sound in microseconds to responding physiologically in pre-programmed ways, via their daily sleep cycle, monthly menstrual cycle, or to changes in the.....»»
Optical spring enables programmable defect mode in new mechanical crystal
Mechanical crystals, also known as phononic crystals, are materials that can control the propagation of vibrations or sound waves, just like photonic crystals control the flow of light. The introduction of defects in these crystals (i.e., intentional.....»»
How to apply Quartz filters in macOS when saving images in Preview
Core Graphics provides default image filters for quick special effects. Here's how to save image files in Preview for macOS with effects.Use Quartz image filters in macOS's Preview app to apply special effects to images.Apple's Core Graphics (Quartz).....»»
SpaceX gets green light for seventh Starship test, but when is it?
The FAA has given the nod to SpaceX to conduct its seventh Starship test from its Starbase site in Texas......»»
Distant blazar discovery supports rapid black hole formation in the early universe
Astronomers have discovered an important piece of the puzzle of how supermassive black holes were able to grow so quickly in the early universe: a special kind of active galactic nucleus so distant that its light has taken more than 12.9 billion year.....»»
Antineutrino detection gets a boost with novel plastic scintillator
How do you find and measure nuclear particles, like antineutrinos, that travel near the speed of light?.....»»