Digital Trends Media Group may earn a commission when you buy through links on our sites.
©2022 Digital Trends Media Group, a Designtechnica Company. All rights reserved.
Circa 2021
Researchers think these flexible semiconductors will be able to monitor your heartbeat or tell you whether your milk has spoiled.
Hard drives and flash storage have gotten more reliable over the years, but only on a human timescale. What if we need data storage that lasts longer? Decades? Millennia? The key to that vision might be 5D optical storage, which has a data density 10,000 times that of a Blu-ray disc. But it’s always been far too slow to write data onto glass plates in this way—until now. A new technique developed at the University of Southampton speeds up the process dramatically, without impacting the reliability of the data.
This type of data storage uses three layers of nanoscale dots in a glass disc. The size, orientation, and position (in three dimensions) of the dots gives you the five “dimensions” used to encode data. Researchers say that a 5D disc could remain readable after 13.8 billion years, but it would be surprising if anyone was even around to read them at that point. In the shorter term, 5D optical media could also survive after being heated to 1,000 degrees Celsius. You can see an earlier, smaller version of the disc above.
This is not the first time 5G optical data storage has popped up. It was just impractically slow before. Data is added to the discs with lasers, but if the laser moves too fast, the disc’s structural integrity is compromised. The technique devised by doctoral researcher Yuhao Lei uses a femtosecond laser with a high repetition rate. The process starts with a seeding pulse that creates a nanovoid, but the fast pulse doesn’t need to actually write any data. The repeated weak pulses leverage a phenomenon known as near-field enhancement to sculpt the nanostructures in a more gentle way.
General Atomics Aeronautical Systems, Inc. (GA-ASI) has unveiled its latest jet-powered robotic drone, the Gambit, which is designed to use artificial intelligence and autonomous systems to fly alongside human-piloted aircraft and achieve air dominance.
General Atomics is known mainly for its drones like the SkyGuardian or the Mojave – robotic aircraft with very long endurance that can loiter over an area for extended periods for either reconnaissance or while awaiting the signal to take out a ground target with missiles like the Hellfire.
Now, the company has joined competitors like Boeing and Kratos to produce a full-on combat drone with the lines and performance of a fighter jet. According to GA-ASI President David R. Alexander, Gambit is an Autonomous Collaborative Platform (ACP), a flying team-mate that will work with piloted aircraft, penetrating into combat zones to detect, identify, and target adversaries at range and scale before they can become a threat to its human partner. In this way, fewer lives are put at risk and more time is gained for critical decision-making.
The USB Implementers Forum (USB-IF) this week released the USB Type-C Specification Revision 2.1, and it introduces a welcome (and powerful) new feature.
Existing USB-C cables are capable of delivering up to 100 watts of power, but as The Verge reports, the latest spec revision increases it to 240 watts. The change means future USB-C ports will be able to power and charge a lot more of your kit, resulting in fewer cables and adapters to carry around.
Expect to buy a new cable and charger if you want to take advantage of the extra power.
Continue reading “Latest USB Type-C Spec Increases Power Delivery to 240 Watts” »
In their pursuit of understanding cosmic evolution, scientists rely on a two-pronged approach. Using advanced instruments, astronomical surveys attempt to look farther and farther into space (and back in time) to study the earliest periods of the Universe. At the same time, scientists create simulations that attempt to model how the Universe has evolved based on our understanding of physics. When the two match, astrophysicists and cosmologists know they are on the right track!
In recent years, increasingly-detailed simulations have been made using increasingly sophisticated supercomputers, which have yielded increasingly accurate results. Recently, an international team of researchers led by the University of Helsinki conducted the most accurate simulations to date. Known as SIBELIUS-DARK, these simulations accurately predicted the evolution of our corner of the cosmos from the Big Bang to the present day.
In addition to the University of Helsinki, the team was comprised of researchers from the Institute for Computational Cosmology (ICC) and the Centre for Extragalactic Astronomy at Durham University, the Lorentz Institute for Theoretical Physics at Leiden University, the Institut d’Astrophysique de Paris, and The Oskar Klein Centre at Stockholm University. The team’s results are published in the Monthly Notices of the Royal Astronomical Society.
Research published in the journal Depression & Anxiety provides evidence that neurocognitive abnormalities are related to difficulties in social connection among people with posttraumatic stress disorder. The findings suggest that those with PTSD are more likely to struggle with managing multiple pieces of social information.
Approximately 7% of the population will have PTSD at some point in their lives, according to the National Institute of Mental Health. The disorder is characterized by persistent and intrusive memories of traumatic events, disrupted sleep, and other symptoms. PTSD has also been tied to social isolation and feelings of loneliness.
The researchers behind the new study sought to better understand whether the link between PTSD and isolation was related to specific impairments in neurocognitive mechanisms that support social cognition. They were particularly interested in social working memory, which describes the ability to maintain and manipulate information about people’s mental states, personalities, and relationships.
