Optical superoscillation without side waves
Optical superoscillation refers to a wave packet that can oscillate locally in a frequency exceeding its highest Fourier component. This intriguing phenomenon enables production of extremely localized waves that can break the optical diffraction barr.....»»
Precise stirring conditions key to optimizing nanostructure synthesis
Stirring allows for homogenization and efficient gas exchange—this fact has been known for decades. Controlling the stirring rate during the nanocluster synthesis is pivotal in achieving nanostructures with well-defined sizes, structures, optical p.....»»
Towards high quality transferred barium titanate ferroelectric hybrid integrated modulator on silicon
Future optical communication and signal processing systems will require high-volume optical links, wherein photonic integrated devices play a key role. Si photonics is currently among the most advanced techniques for realizing low-cost PIC. However,.....»»
10 years ago, this disaster movie delivered as much summer fun as Twisters
Twisters is breaking box office records in 2024, but this similar disaster movie about a deadly storm made some waves 10 years ago as a late summer hit......»»
Watch NASA astronauts use VR to explore the first lunar space station
NASA astronauts have been having fun trying out VR goggles that take them aboard the lunar space station, though there's also a serious side to the activity......»»
Optical navigation tech could streamline planetary exploration
In a dim, barren landscape like the surface of the moon, it can be easy to get lost. With few discernable landmarks to navigate with the naked eye, astronauts and rovers must rely on other means to plot a course......»»
Big day for clean up across Cleveland’s west side
Big day for clean up across Cleveland’s west side.....»»
Chang"e 6 brought rocks from the far side of the moon back to Earth—what this sample could hold
China achieved a historic feat by bringing back the first-ever sample from the lunar far side in June 2024. It's moon lander, Chang'e 6, used a robotic scoop and drill to collect approximately 5 pounds (2 kilograms) of rocks and soil. These samples c.....»»
Using historical radar data to map changes in urban environments
Synthetic aperture radar (SAR) is a type of remote sensing from satellites that uses the reflection of radio waves to relay information about the surface of the earth. This reflection, or backscatter, is responsive to physical properties, such as rou.....»»
Most existing heat wave indices fail to capture heat wave severity, experts report
Even though climate change is bringing more frequent and severe heat waves, there is no standard, global way to measure heat-wave severity, and existing indices have different thresholds for defining dangerous heat-stress conditions......»»
New computer vision-based system monitors seasonal dynamics of tropical water
Understanding how water moves and changes around the world is more important than ever due to climate change, but monitoring inland water in the tropics is not easy. Most satellites are optical and simply take photos of surfaces. They cannot see thro.....»»
End of an era: Apple"s SuperDrive has finally sold out after 16 years
The 2008 MacBook Air didn't have an optical drive, so Apple sold a separate SuperDrive accessory, which has finally seemingly been discontinued from sale.RIP Apple USB SuperDriveVisit Apple's website, and you'll see the SuperDrive is sold out. That m.....»»
An overlooked side-effect of the housing crisis may be putting Californians at increased risk from climate disasters
In a new article appearing in the journal Proceedings of the National Academy of Sciences, UC Santa Cruz researchers have laid out the foundation for their highly-anticipated upcoming study of how lack of affordable housing in urban areas of Californ.....»»
Save our waves: Surfing pumps $2.71 billion into the Australian economy and boosts well-being
Ever since Polynesian pioneers took to the ocean on wooden rafts, people have been hooked on riding waves. Today, surfing is one of the world's fastest-growing sports and one of the latest additions to the Olympic games......»»
Japan sees hottest July since records began
Japan sweltered through its hottest July since records began 126 years ago, the weather agency said, as extreme heat waves fueled by climate change engulfed many parts of the globe......»»
Predicting solar storms before they leave the sun
When giant solar storms hit Earth, they trigger beautiful auroral displays high in Earth's atmosphere. There's a dark side to this solar activity, though. The "space weather" it sets off also threatens our technology. The potential for damage is why.....»»
Can quantum particles mimic gravitational waves?
When two black holes collide, space and time shake and energy spreads out like ripples in a pond. These gravitational waves, predicted by Einstein in 1916, were observed for the first time by the Laser Interferometer Gravitational-Wave Observatory (L.....»»
Novel nanosensing technique for quality control of viral vectors in gene therapy
Viral vectors hold much potential for gene editing and gene therapy, but there is a pressing need to develop quality control methods to minimize potential side effects on patients. Addressing this, researchers from Japan developed a nanosensing-based.....»»
Extreme heat in India: A crisis on the rise
As global temperatures continue to rise, India is grappling with increasingly severe heat waves. As early as April, many Indian cities, including New Delhi, the capital, have experienced record temperatures above 115 degrees Fahrenheit......»»
Texans vs Bears live stream: Watch the NFL Hall of Fame Game for free
Real, live football is back tonight, as the Houston Texans and Chicago Bears meet in the 2024 NFL Hall of Fame Game. You’re unlikely to see many starters on either side of the field — that includes No. 1 pick Caleb Williams, who won’.....»»
Pyramid optical networks for unidirectional image magnification and demagnification
In Light: Science & Applications journal UCLA researchers introduce an innovative design for diffractive deep neural networks (D2NNs). This new architecture, termed Pyramid-D2NN (P-D2NN), achieves unidirectional image magnification and demagnificatio.....»»