Overcoming the optical resolution limit
When measuring with light, the lateral extent of the structures that can be resolved by an optical imaging system is fundamentally diffraction limited. Overcoming this limitation is a topic of great interest in recent research, and several approaches.....»»
NASA can talk to its spacecraft using lasers now
NASA's Deep Space Optical Communications test has completed its first phase, showing that laser communications in space are possible and faster than radio......»»
Capturing finer-scale topographic differences improves Earth system model capability to reproduce observations
Earth system models (ESMs), used in climate simulations and projections, typically use grids of 50–200 km resolution. These are considered relatively coarse with limited ability to resolve land surface variability......»»
Does limiting iPhone charging to 80% extend battery life?
Both the iPhone 16 and the iPhone 15 before it offer the option to limit charging to 80% rather than 100%. The thinking is that many people don’t need the full battery capacity of the device in a typical day, and it reduces wear on the battery, ext.....»»
NASA"s laser comms demo makes deep space record, completes first phase
The Deep Space Optical Communications tech demo has completed several key milestones, culminating in sending a signal to Mars' farthest distance from Earth......»»
Logic with light: Introducing diffraction casting, optical-based parallel computing
Increasingly complex applications such as artificial intelligence require ever more powerful and power-hungry computers to run. Optical computing is a proposed solution to increase speed and power efficiency but has yet to be realized due to constrai.....»»
New materials and techniques show promise for microelectronics and quantum technologies
As phones and computers shrink in size, our need for data storage and transfer is growing. Electronic devices have been powered by semiconductors for decades, but as the push to miniaturize continues, there's a limit to how small semiconductors can b.....»»
Quantum research paves the way toward efficient, ultra-high-density optical memory storage
As our digital world generates massive amounts of data—more than 2 quintillion bytes of new content each day—yesterday's storage technologies are quickly reaching their limits. Optical memory devices, which use light to read and write data, offer.....»»
Researchers create orientation-independent magnetic field-sensing nanotube spin qubits
Purdue University researchers have developed patent-pending one-dimensional boron nitride nanotubes (BNNTs) containing spin qubits, or spin defects. The BNNTs are more sensitive in detecting off-axis magnetic fields at high resolution than traditiona.....»»
Developing novel chiral capsule tools for advanced optical technologies
Chirality is an essential property in biology; the molecular building blocks of some of the most important biological structures, including DNA and proteins, are chiral. When a molecule is said to be chiral, it means that it is distinguishable from i.....»»
High-resolution images of RSV may expose stubborn virus"s weak points
The complex shape of respiratory syncytial virus (RSV) is one hurdle limiting the development of treatments for an infection that leads to hospitalization or worse for hundreds of thousands of people in the United States each year, according to the C.....»»
4K eufyCam S3 Pro arrives w/ HomeKit Secure Video, solar power, night vision ‘bright as day’
Anker has launched its latest premium outdoor security device with the . The new camera features a crisp 4K resolution, HomeKit and HomeKit Secure Video support, “nighttime that’s bright as day,” an integrated solar power system, and more......»»
Headband-like device uses speckle contrast optical spectroscopy to predict stroke risk
A team of researchers from the Keck School of Medicine of USC and California Institute of Technology (Caltech) have developed a potential new way to measure a person's stroke risk that is cost-effective and noninvasive, akin to a cardiac stress test......»»
Observations explore the nature of transitional millisecond pulsar PSR J1023+0038
Using the Gran Telescopio Canarias (GTC), astronomers from Italy and Spain have carried out high-temporal-resolution optical spectroscopic observations of a transitional millisecond pulsar designated PSR J1023+0038. Results of the observational campa.....»»
Nonlinear optical metasurface achieves electrically tunable third-harmonic generation
A recent study has unveiled a transformative nonlinear optical metasurface technology. This new technology, characterized by structures smaller than the wavelength of light, paves the way for significant advancements in next-generation communication.....»»
NASA confirms space station cracking a “highest” risk and consequence problem
NASA and Roscosmos have not agreed on the point at which the leak rate is untenable. Enlarge / A high-resolution commercial Earth-imaging satellite owned by Maxar captured this view of the International Space Station on June 7 wi.....»»
Non-Pro Apple Vision likely to have half the resolution
Display samples requested by Apple suggest that a future non-Pro Apple Vision headset is likely to have around half the resolution of the existing model. Apple has reportedly requested samples of potential displays from both JDI and Samsung, with.....»»
Restoring nature, "adaptation" helped limit Storm Boris impact
The restoration of a creek in Vienna reduced the impact of flooding caused by Storm Boris, authorities say, one of many projects experts believe helped central Europe endure the deluge better than in previous years......»»
New insights into hot carrier solar cells: Study explores hot electron tunneling and collection to enhance efficiency
Hot carrier solar cells, a concept introduced several decades ago, have long been seen as a potential breakthrough in solar energy technology. These cells could surpass the Shockley–Queisser efficiency limit, which is a theoretical maximum efficien.....»»
Our digital 3D models of huge coral reefs could help revive these precious ecosystems
As a team of marine biologists, assessing the health of thousands of square meters of coral reef can be a daunting prospect. Often, we have to monitor some of the most biodiverse ecosystems on the planet, and there's a strict time limit due to the sa.....»»
High-resolution images of the sun show how flares impact the solar atmosphere
Solar flares are a fascinating thing and have a profound effect on what astronomers refer to as "space weather." These events vary with the sun's 11-year solar cycle, releasing immense amounts of radiation across the electromagnetic spectrum (from ex.....»»